C Programming Answers for chapter 5

5 ררררר ררררר רררר רררררר - C ררררר רררר

ךךךךך ךךךך: ך"ך ךךך ךךךך

: while רררררר ררררר while (condition) statement;

:ררררר

/*The following program prints all positive integers up to max:*/void main() { int max = 10; int i = 1; while (i<=max) {

printf("%d\n",i);i = i+1;

}//End of while loop!} //End of main!

: for רררררר ררררר

for (initial; condition; update) statement;

:ררררר

/*Program to print numbers until max:*/void main() { int max = 10; int i; for (i=1; i<=max; i=i+1) printf("%d",i);

48 ךךךך 1 ךךךך



}: do while רררררר ררררר

do{ statement;{while (condition);

:רררררvoid main() { int max = 10; int i = 1; do {

printf("%d\n",i);i = i+1;

} while (i<=max) ;//End of do while loop!} //End of main!

casting ררררר רר ררררררר – ךךךךךך ךךךךךך ךךךךךך. ךך ךךךך ךךךךךךךךcךך ךךךךך ך –

ךךךךךךך ךךךךך ךךךךךךךך? ךךךךך ךךךךךךךך ךךךךךך ךךךךך ךךךךךךך ךךךךךךך ךךךךךcךךךךךך

ךךךךך ךךךךךך ךךךך ךךךך ךךךךךך ךך ךךךךך ךךךךךך ךךך ךךךך.

ררררר ררררררר ררררררררר:ךךךך ךךךךךך ךךךךך ךךךךך ךךךך ךךךךךך ךךךך ךךך ךךךךך ךךךךך. ךךךך ךךךךךךךך ךךךךךך ךך ךךךך ךךךך ךךךךך ךךך ךךךךךך ךך ךךךךךך

ךךךך ךךךךךך ךך ךךךךךךך ךךךך ךך ךךךךךך: int x , y;

. int ךךךך ךךךךךך x + yךך ךךךךךך:




ךךךך ךךךךךך ךךךךךך ךךךך ךךךךךךךך ךךךךך ךךךך ךךךךךך ךךךךךך ךך. ךךךך ךך ךךךךךך ךךךךךךך ךך ךךךךךךךךךךך ךךךךך ךךךךךךךךךךך ךך

ךךךך ךךךךך ךךךךך ךךךך:

char, short, int, long, float, double, long double

:רררררר5.0 / 2 = 2.55.0 / 2.0 = 2.05 / 2.0 = 2.5

ךךךךךך ךך"ך ךךךךךך ךךךך ךךךך ךךךך ךךךך ךךךך ךךךךךך ךךךךךךךךךך, ךךך

5 / 2 = 2ךךךך ךךך ךךךךךך ךךךךךך ךךךך ךךךךךך.

ךךךך ךךךךךךך ךךךךך ךך ךךךךךךך ךךךךךךך ךךךךך. ךךךךך ךךך ךךךךךךךךך ךךךך ךךךךךך ךךךךךךך ךךךך ךךךךךך ךך ךךךךךךך ךךךךך. ךךךך

ךךךךךך ךךךך ךך ךך ךךך ךךךךך ךךךךךך ךךךך ךךךך.ךך ךךךךךך:

int i = 5;double d;d = i ;

. 5.0 ךךךך dךך ךךךך ךךךךך ךך

:ררררר ררררררר רררררר ךךךךך ךךךךךךךך ך-int ך-,doubleךךךךך ךךךךך , ךךךך ךךךךך ךךךךך

type cast: (<type>)

:ררררררdouble d = 3.14;int i;

i = (int) d;/* -> i = 3/*




ךךךךך ךךךך ךךךךךךךך ךךךךך ךךךך ךךךך ךךךךך ךךךךך ךךךךך ךךךךךךךךך ךךךך ךך ךךךךך ךךךךךך ךךךךך:

double d;int x=5, y=2;

d = x/y;/* -> d = 2.0/* ךךךךך ךךך:

double d;int x=5, y=2;

d = (double) x / y;/* -> d = 2.5/*

ךךך ךךךךךך10ךך - 1ךךךך ךךךךךך ךךךךךךך ךך ךךךךךךך ך - 1ךךךךך –7.

#include <stdio.h>void main(){int i;for (i = 1; i <= 10; i++)

{if (i == 7)

continue; printf("%d\t", i);}

}

7- ךך3- ךךךךךךךך ך- 100 ך 1ךךךך ךך ךך ךךךךךךך ךךך - 2ךךךךך .ךךך ךךךךך

#include <stdio.h>Void main(){int i;for (i = 1; i <= 100; i++)

{if (i % 7 == 0 && i % 3 == 0) printf("%d\t", i);




}putchar('\n');}

ךךךך ךךךךךך ךךךךךך ךךך ךךךךךךך ךך ךךךךךך ךךךךך - 3ךךךךך ךךךךךךך. ךך ךךךך ךךךךךךך ךךך ךךךךךך ךךךך, ךךךךךךך ךךךךך ךךךךך

.999ךךךךךך ךךךך ךךךךך ךךךךך #include <stdio.h>void main() { int mispar, sum=0, counter=0;

float avg; while (1) {

puts("Enter int number:");scanf("%d",&mispar);if(mispar != 999){

sum+=mispar;counter++;

}else

break; }//End of while loop!

printf("Sum is: %d\n",sum);printf("Items counter is: %d\n",counter);avg=(float)sum/counter;printf("Avg is: %.2f\n",avg);

} //End of main!

- 4ךךךךך ךךךךך". ךךך ךך ךךךךך"ךךךך ךךךךךך ךךךךךך ךך ךךךךך ך1ךךךך ךךךך ךךך ךךךךך ךךךךךך ךךךך ךךךךךךךך ךךךך ךך100-

. ךךךךך,ךךךך ךך ךךךךך ךךךךך ךךךךך ךךך ךךךךך ךךךךךך ךךךךךך ךךךך ךךךךךך

.ךך ךך ךךךךךך ךךךךך ךךךך ךך ךךךךך, ךךך ךךךך. ךךךךךךךך ךך ךךךך ךךךךךך ךךךך ךך ךךךךך10ךךךךךךך ךךךךךך ךךךך

:1ךךךךך #include <stdio.h>void main()




{int mispar, number, tries=1;number = 56;/* let the user guess number */while(tries <= 10){printf("Enter number between 1 to 100: ");scanf("%d", &mispar);if (mispar < 1 || mispar >100){

printf("Wrong number try again...\n");continue;

}/* If the number is bigger than the number the computer selected, tell "number is bigger" */

if (mispar < number) printf("Try bigger number...\n");

else if (mispar > number) printf("Try smaller number...\n");

else{/* Tell the user he found the number: */

printf("You found it!!!\n");break;

}/* Let the user guess another number */tries++;}printf("Number of tries exceed. Game over\n");

}

:2ךךךךך #include <stdio.h>int main(){int mispar, number, tries;/* the computer select a number */number = rand()%100;




/* let the user guess number */printf("Please enter a number between 1 to 100: ");scanf("%d", &mispar);for (tries = 1; tries <= 10; tries++){

if (mispar < 1 || mispar >100){

printf("Wrong number try again...\n");tries--;continue;

}/* If the number is bigger than the number the computer selected, tell "number is bigger" */if (mispar < number)

printf("Try bigger number...\n");else

if (mispar > number) printf("Try smaller number...\n");

else{/* Tell the user he found the number: */

printf("You found it!\n");return 0;

}/* Let the user guess another number */printf("Please enter a number between 1 to 100: ");scanf("%d", &mispar);}

printf("Number of tries exceed. Game over\n");return 0;

}.3- ך1ךךךך ךךךךךך ךך ךךךךך ךךך ךךךך ךךך ךךךךךך ךךך - 5ךךךךך

1 ךךךךךך ךךך ךךך ךךךך ךךךךךךךך ךךך 3- ך1ךךךך ךך ךך ךךךך ךךך . ךךךךך ךךךךךך ךך ךךךך3- ך

: While - ררררר ררררררר ררררר רררררר




#include<stdio.h>void main (){int first=1,second=1,result;while(first<=3){second=1;while (second<=3)

{result=first*second;printf ("\n First is %d, and second is %d, and their multiplying result is %d\n", first, second, result);second++;}

first++;}}

: רררר ררררFirst is 1, and second is 1, and their multiplying result is 1

First is 1, and second is 2, and their multiplying result is 2








: For – ררררר ררררררר ררררר רררררר #include <stdio.h>void main(){int first=1,second=1,result;




for(first=1; first<=3; first++){

for (second =1; second <=3; second ++) { result=first*second;

printf ("\n first is %d, and second is %d, and their multiplying result is %d\n", first, second, result);

} }

}

ךךךך ךךךךךך ךךך ךךךךך ךךךך ךךךךך ךך ךך ךךךךךךך ךךךך - 6ךךךךך . ךך ךךךך0ךךךך ךךךךךך ךךךךך ךךך ךךךךך

#include<stdio.h>void main(){int mispar;printf("Please enter number\n");scanf("%d", &mispar);while(mispar>=0)

{printf("%d\n", mispar); mispar--;}

}

ךךךךך ךך ךךךךךך ךךךךךך ךךךך ךך20ךךךך ךךךךךך ךךךךךך - 7ךךךךך .ךך ךךךךך ךךךך ךךךךך

#include<stdio.h>void main(){int num1,num2,i=1;printf("Enter 20 pairs of numbers:\n");while(i<=20){




printf("Enter pairs number %d: \n",i);scanf("%d %d", &num1, &num2);if(num1>num2)

printf("%d > %d\n", num1,num2);i++;

}}

ךךךך ךךךךךך ךךך ךךךךך ךךךךך ךךךךךך ךךךךךך ךך ךךךךך - 8ךךךךך .ךך ךךךך

#include<stdio.h>void main(){int mark1,mark2,mark3;printf("Enter three mark\n");scanf("%d%d%d",&mark1,&mark2,&mark3);if (mark1 > mark2 && mark1 > mark3)

printf("%d is the highest mark !!!\n",mark1);else

if (mark2 > mark1 && mark2 > mark3)printf("%d is the highest mark !!!\n",mark2);

elseprintf("%d is the highest mark !!!\n",mark3);

}

ךךךך ךךךךך ךךךךך ךך ךךךךךךךך10ךךךך ךךךךךך ךךךךךך - 9ךךךךך ךךךךךך ךךךך ךך ךך ךךךךךךך ךךךך ךךךךך ךךךך ךךךךךךך ךךךךך ךךך

.ךך ךךךךךך ךך ךךךךךך ךך ךךךך. ךךךך ךךךךךך#include<stdio.h>void main(){int r=0,mone=0,rt=0; printf("please enter 10 resistors values:\n"); while(mone<10)

{




scanf("%d", &r);rt=rt + r; mone++; }

printf ("The sum of all the resistors RT=%d !!!\n", rt);}

ךך ךךךךךך ךךךךךך ךךךך 9ךךךך ךךךךךך ךךך ךךךךך - 10ךךךךך .ךךךךךךך ךךךךךך

#include<stdio.h>void main(){ int r=0,mone=0,rt=0;printf("please enter 10 resistors values:\n"); while(mone<10)

{ scanf("%d",&r); rt=rt +1/ r; mone++; }

printf("The sum of all the resistors RT=%d!!!\n",rt);}

ךךךך ךךךךךך ךךךךךך ךךךך ךך ךךךך ךךךךךך ךךךךךךך ךך - 11ךךךךך .ךךךך ךךךךך ךךךךך

#include<stdio.h>void main(){int max=0,i,weight;printf("please enter 10 weights of man:\n");for(i=1; i<=10; i++){

scanf("%d",&weight);if (weight>max)

max=weight;printf("The max weight is: %d\n",max);printf("The weight is: %d\n", weight);printf("Mone is: %d\n",i);




}printf("The max weight is: %d\n",max);}

ךךךךךך ךךךךךךך ךך ךךךךךך, ךך10ךךךך ךךךךךך ךךךךךך - 12ךךךךך ךךךךך ךךךךך ךךךךך ךךך ךךךךך ךךךךך ךךךךך ךךךךךך.

#include<stdio.h>void main(){ int sum=0,average=0,i=0,mark,minmark=100,maxmark=0; printf("Please enter 10 students marks:\n"); while (i<10)

{printf("enter mark number %d:\n",i+1);scanf("%d",&mark);if(mark>maxmark)

maxmark=mark;if(mark<minmark)

minmark=mark;sum+=mark; i++;}

average = sum / i; printf("The average is: %d\n", average);printf("The maxmark is: %d\n", maxmark);printf("The minmark is: %d\n", minmark);}

ךךךךךך ךךךךךךך ךךך ךך ךךךך ךך10ךךךך ךךךךךך ךךךךךך - 13ךךךךך .55-ךך ךךךךךך ך

#include<stdio.h>void main(){int mone,temp;




printf("please enter 10 students marks:\n");for (mone=0; mone<10; mone++)

{scanf("%d",&temp);if (temp<55) printf("Number is lower than 55: %d !!!\t\n",temp);}

}

ךך ךךך ךךךךך (1-20ךךךך ךךךךךך ךךךךךךך ךך ךךךךךךך - 14ךךךךך ).ךךךךך

#include<stdio.h>int main(){int i = 1;printf("The numbers from 1 to 20 in other line\n");while(i <= 20) { printf("%d\n", i); i++; }return 0;}

ךך1-ךךךךךך ך-ךךךך ךךךךךך ךךךךךךך ךך ךךךךךךך ךךך - 15ךךךךך .whileךךךךךךך , 50

#include<stdio.h>void main(){int i = 1;printf("Only the odd numbers from 1 to 50 in other line\n");while(i <= 50) {




printf("%d\n ", i); i += 2;

}}

ךך1-ךךךךךך ך-ךךךך ךךךךךך ךךךךךךך ךך ךך ךךךךךךך ךךך - 16ךךךךך .do-whileךךךךך ךךךךךך ,50

#include<stdio.h>int main(){int i=1;printf("Only the odd numbers from 1 to 50 in other line\n");do { printf("%d\n ",i);

i += 2; }while(i < 50);return 0; }

ךך1-ךךךך ךךךךךך ךךךךךךך ךך ךך ךךךךךךך ךךךךךךך ך - 17ךךךךך .forךךךךך ךךךךךך , 50

#include<stdio.h>int main(){ int i; printf("Only the even numbers from 1 to 50 in other line\n");for (i = 0; i <= 50; i += 2)

printf("%d\n",i);return 0;}

- 18ךךךךך ךךךךךך ךךך ךךךךךךך ךךךךךך ךךךךךך ךךךךךךך. ךךךך ךךך ךך. ךךךךךך ךךךךך ךךךךךך ךך ךךךך ךךךךךך, ךך ךךךךך ךךך ךךךך




,ךךך ךךךךך ךך ךךךךךך ךך ךךך ךךךך ךךךךךך ךךךך ךךך ךךךךךך ךךךךךך:ךך ךךךךךךך ךךךך ךךךךךך, ךךך ךךךך

#include <stdio.h>void main(){int exit;do{int mispar1, mispar2;printf("Please enter two numbers with a space between them:\n");scanf("%d %d", &mispar1, &mispar2);if(mispar1 > mispar2)printf("%d is bigger than %d\n",mispar1,mispar2);else if (mispar1 < mispar2) printf("%d is smaller than %d\n",mispar1,mispar2); elseprintf("The numbers are equal.\n");printf("Please enter 1 to repeat, any other number to quit.\n");scanf("%d", &exit);}while(exit == 1);}

ךךךך ךךךךךך ךךךךךך ךךך ךךךךךך ךך ךך ךךךךךךך ךךךךךךך – 19ךךךךך ךךךךךך, 1ךךךךך ךךךךךךך ךךךך . ךךךךךך ךך ךךךךך ךךךךך-ךך ךך. ךךךךךך ךךךךךךך2ךךךךך ךךךךך , ךךךךךך-ךךך

#include <stdio.h>void main(){int i, num, kind;printf("Please enter a number ");scanf("%d",&num);




printf("what kind of numbers would you like?, 1 is for odd numbers, 2 is for even ");scanf("%d",&kind);if (kind!=1 && kind!=2) { printf("You entered wrong input"); return -1; }for(i=kind;i<=num;i+=2)

printf("%d\n",i);}

ךךךךךך ךך ךךך ךךךךךך ךךך, ךךךך ךךךךךך ךךךךךך ךךךך - 20ךךךךך ך ךךך" ךךךךךךך ךךךךךךךך ךך ךךךך ך10ךך ךךך ךךךךך ) ךךךךךךךך(

:ךךךךךך#include <stdio.h>#include <math.h> int main(){float angle, power, sinus =0;unsigned int i; int sign = 1;unsigned long int factorial = 1;printf("Please enter angle: ");scanf("%f", &angle);power = angle;for(i = 0; i < 10; ++i) { sinus += sign * power / factorial; sign = -sign; factorial *= (2 * i + 2) * (2 * i + 3); power *= angle * angle; } printf("sin(%.2f) ~= %.2f\n", angle, sinus);}




ךךךך ךךךךךך ךךךךךך ךךך ךךךךךךך ךך ךךךךךך ךךךךך - 21ךךךךך .ךךךךךךך ךךךךך ךך ךךךך ךך ךךךךך ךךךךךךך ךךךךךך ךךך ךךךךך ךךךךך

#include <stdio.h>void main(){int max1, max2, max3;int i1, i2, x;printf("Enter numbers, to exit enter char!!!\n");scanf("%d %d %d", &max1, &max2, &max3);i1 = max2; i2 = max3;while (scanf("%d", &x) == 1)

{if (i1+i2+x > max1+max2+max3)

{max1 = i1; max2 = i2;max3 = x;}

i1 = i2;i2 = x;}

printf("Maximum three numbers in the list: %d %d %d\n", max1, max2, max3);}

,ךךךך ךךךךךך ךךךךךך ךךך ךךךךךךך ךך ךךךךךך ךךךךךךך - 22ךךךךך .ךךךךךך ךךךךךך ךך ךךךךך ךךךך ךךךךך ךךךךך

#include <stdio.h>void main(){int max, cur;if (scanf("%d", &max) != 1)

printf("Input Error\n");return -1;




while (scanf("%d", &cur) == 1){if (cur > max)

max = cur;}

printf("Biggest Number on stream: %d\n", max); }

,ךךךך ךךךךךך ךךךךךך ךךךך ךךךךךך ךךךך ךךךךךך ךךךךךך - 23ךךךךך .ךךךךךךך ךך ךךךך ךךך ךךךךךך ךךךךך ךךךךך ךך

#include <stdio.h>int main(){int max_zero = 0, zero_counter = 0, cur;printf("Please enter numbers include 0\n");while (scanf("%d", &cur) == 1)

{if (cur == 0){++zero_counter;if (zero_counter > max_zero)

max_zero = zero_counter;}else

zero_counter = 0;}

printf("Max zeros: %d\n", max_zero);return 0;}

ךךךךךךך. cells ךךךך ךךךךךך ךךךךךך ךךךךךךך ךךךך ךךך - 24ךךךךך . cells * cells ךך ךךךךך ךךךך ךךך ךךךך ךךךךך

.ך ךךך ךךךך"ךךך ךךך ךךךךך ך, #ך ךךך "ךךך ךךךך ךךךךך ך#include <stdio.h>int main(){




int cells, lines;int i,j;printf("Enter number of cells, number of lines:\n");scanf("%d %d", &cells, &lines);/* print n chess lines */for (i = 0; i < cells; ++i) { /* repeat one line k times */

for (j = 0; j < lines; ++j)if ((i + j) % 2)

putchar('#');else

putchar(' ');putchar('\n');

}return 0;}

:ךךךךך ךךךך#include <stdio.h>int main(){int cells, lines;int n1, n2, k1, k2;printf("Enter number of cells, number of lines:\n");scanf("%d %d", &cells, &lines);/* print n chess lines */for (n1 = 0; n1 < cells; ++n1) { /* repeat one line k times */

for (k1 = 0; k1 < lines; ++k1){/* print n cells */

for (n2 = 0; n2 < cells; ++n2){/* draw a cell */

for (k2 = 0; k2 < lines; ++k2){




if ((n1 + n2) % 2) putchar('#');

else putchar(' ');

}}putchar('\n');

}}return 0;}

ךךךך ךךךךךך ךךךךךך ךךךךךךך ךךךך ךךךךךךךך ךךךךךך ךךך – 25ךךךךך ,1ךך ךךךךך . ךךךךךך ךך ךךךך ךךךך-ךךךךךך ךך ךךךךךךך ךך ךךך

2ךך ךךךךך , ךךך ךךךךך ךךךך ךךך1-ךךךךךך ך-ךךךךךךך ךךךךך ךך ךךך.0 ךך ךךךךך. ךךךךךך ךך ךךךךך 2ךךךךךך ךךךךךךך ךךךךך

#include <stdio.h>int main(){

int i, num,kind;puts("Please enter a number for upper border"); scanf("%d",&num);if(num==0)

return 0;puts("What kind of numbers would you like?");puts("Press 1 for odd numbers");puts("Press 2 for even");puts("Press 0 for EXIT");scanf("%d",&kind);switch (kind){

case 1: printf("You choose to print odd numbers from1 to %d\n",num);

for(i=kind;i<=num;i+=2)printf("%d\n",i);




break; case 2: printf("You choose to print even numbers

from 2 to %d\n",num);for(i=kind;i<=num;i+=2)

printf("%d\n",i);break;case 0: printf("You choose to EXIT the PROGRAM !!!\

n");return 0;

break;}

{-ךך 'ךךךך ךךךךךך ךךךךךך ךךךך ךךךךך ךךךךךךךךךך ךךךךך – 26ךךךךך

forךךךךךךך ךךךך ךך ךךךךך ךךךךך ךךךךך ךךךךך ךך ךךךךך . 10- ך11ךךךךךך ךךךך ךךךךךך ךך ךךךךךך . while ךךךךךך do whileךךךךך

0, ךךךך ךךךך ךךךך'ךך ךךךךךךךךך2, ךך'ךךךך ךךךך ךךךךךךךךך ךךךךך.ךךךךךך ךךךךךךךך

#include<stdio.h>int main(){

int i, kind;printf("Centimeters Inches convert:\n");printf("============================\n");printf("what kind of conversion?\n");printf("1 from centimeter to inch\n");printf("2 from inch to centimeter\n0 to exit\n");printf("============================\n");scanf("%d",&kind);switch (kind){case 1:

printf("You choose to convert centimeter to inches\n");

printf("In For loop!!!\n");printf("==============\n");printf("Centimeters\tinches\n");for(i=1;i<=10;i++)

printf("%d\t\t%.2f\n",i,i/2.54 );i=1;printf("\nIn While loop!!!\n");




printf("==============\n");printf("Centimeter\tInches\n");while (i<=10){

printf("%d\t\t%.2f\n",i,i/2.54 );i++;

}i=1;printf("\nIn Do While loop!!!\n");printf("==============\n");printf("Centimeters\tinches\n");do{

printf("%d\t\t%.2f\n",i,i/2.54 ); i++;

}while (i<=10); break;case 2:

printf("You choose to convert from inch to centimeter\n");

printf("In For loop!!!\n");printf("==============\n");printf("Inches\tcentimeter\n");for(i=1;i<=10;i++)

printf("%d\t%.2f\n",i,i*2.54 );i=1;printf("\nIn While loop!!!\n");printf("==============\n");printf("Inches\tcentimeter\n");while (i<=10){

printf("%d\t%.2f\n",i,i*2.54 );i++;

}i=1;printf("\nIn Do While loop!!!\n");printf("==============\n");printf("Inches\tcentimeter\n");do{

printf("%d\t%.2f\n",i,i*2.54 );i++;

}while (i<=10);




break;case 0:

printf("You choose to EXIT the PROGRAM !!!\n");return 0;break;}

}

ךךךךwhile ךךךךךך ךךךךך ךךךךךך Cךךךךך ךךךךךך ךךךך - 27ךךךךך ךך ךךךךךךך ךךךךך ךךך ךךךךך ךךך ךךך ךךךךך ךךך ךךךךך ךךךךך ךךךך

?ךךךךךךך#include <stdio.h>int main() {int a = 5;/* Start while loop */while(1){if(!(a-3))

{printf("** a=3 **\n");break;}

printf("a=%d\n",a--);}/* End while loop */return 0;}

while ךךךך ךךךךךך for - ךךךך ךךךך ךךךךך ךך ךךךךך ך-28ךךךךך ךךךךך ךךךך ךךךךך?

/* The program prints the powers of 2 which are < 100.*/void main(){

int i;for (i=1; i<100; i=i*2)




printf("%d\n",i);}

:ךךךךך/* The program prints the powers of 2 which are < 100. Here we are implementing using a while loop.*/void main(){

int i=1;while (i<100){

printf("%d\n",i);i=i*2;

}} // main

ךךךך ךךךךךך ךךךךךךךn+2n+3n+…+n2ךךךך ךך ךךךךך ךךך: - 29ךךךךך ךךך!!!:ךךךךך

for(i=1,sum=0;i<=n;++i)for(j=1;j<=n;++j)

sum+=i;

ךך ךךךך ךךךך ךךךך ךךךך ךךך (ךךךך ךך ךךךך ךךךךךך ךךך - 30ךךךךך ךךךךך)?

int k = 10, sum = 0,j;for (j = 0;j < k; j = k - 1)

sum = sum + 1;.k = 10ךךךך ךךךךךך ך.ךךךך ךך ךךךךך ךךךךךךךךך.ך..9 ךךך jךךךך ךךךךךך ךךך ך.ךךךךךך ךךךך ךךךךךך ךךךךךךךך.ך.ךך ךך ךךך ךךךךךךךך ךךךך.ך.

: ךךךךך.k = 10ךךךך ךךךךךך ך.




.9 ךךך jךךךך ךךךךךך ךךך ך.

ךךךך ךךךךך ךךךך ךך ךךךךךךך ךך ךךך ךךךך ךך ךךךך ךךךךך.". 9 ךךך j" ךך "ךךךך ךךךךךך ךךך k = 10ך-"ךךךך ךךךךךך

ךך ךךךך ךךךך ךךךך ךךךך ךךך (ךךךך ךך ךךךך ךךךךךך ךךך - 31ךךךךך ךךךךך)?

int sum = 0,number;for (number = 1;number <= 10; number = number + 1)

number = number - 1;printf("%d\n",sum);

ךךךך ךך ךךךךך ךךךךךךךךך.ך.

.0ךךךךך ךךךך ךךךךך ך.



ךך ךך ךךך ךךךךךךךך ךךךך.ך.ך. - ךך ךךךךך ךךךךךךךך!!!: ךךךךך

- 32ךךךךך ךך ךךךך ךךךך ךךךך ךךךך ךךך (ךךךך ךך ךךךך ךךךךךך ךךך ךךךךך)?

int i;for (i = 0;i < 10; i = i + 1)

for (i = 0;i < 9; i = i + 1)printf("*");

ךךך ךך ךךך '*'.90ךךךךך ךךךך ךךךךך ך.

ךךךךךך ךךךךך ךךךךךך ךךךךךךךך.ך.

ךךךךך ךך ךךך '*'.9ךךךךך ךךךך ךךךךך ך.

ךךךך ךך ךךךךך ךךךךךךךךך.ך.

ךך ךך ךךך ךךךךךךךך ךךךך.ך. ך.: ךךךךך

ךךךךךך ךך ךךךךךnךךךך ךךךךך ךךךךךך ךךךך ךךךך ךךך - 33ךךךךך ךךךךךך ךךךךך

ךךךךךך'ך ךךךך:




n : 0, 1, 2, 3, 4, 5, 6, . . .

: 0, 1, 1, 2, 3, 5, 8, . . .

ךךךךךךך ךךךךךךךך ךך ךךךךך ךך:20ךך ךךךך

F(0) = 0F(1) = 1F(2) = 1F(3) = 2F(4) = 3F(5) = 5F(6) = 8F(7) = 13F(8) = 21F(9) = 34F(10) = 55F(11) = 89F(12) = 144F(13) = 233F(14) = 377F(15) = 610F(16) = 987F(17) = 1597F(18) = 2584F(19) = 4181F(20) = 6765

:ךךךךך#include<stdio.h>#include<stdlib.h>int main() { int n, Fnumber, Fnumber1=1, Fnumber2=0, i;

do{printf("N = ");




scanf("%d",&n) ;}while (n < 0);printf("F(%d) = %d \n", 0, Fnumber2);printf("F(%d) = %d \n", 1, Fnumber1);for (i=2 ; i <= n ; i++){

Fnumber = Fnumber1 + Fnumber2;printf("Fnumber1=%d,Fnumber2=%d\

n",Fnumber1,Fnumber2); Fnumber2 = Fnumber1;

Fnumber1 = Fnumber;printf("F(%d) = %d \n", i, Fnumber);

}return 0;

}

ךך 34ךךךךך ךךךךךך ךךךך ךך ךךךךךך ךךךךך ךךךך - =) = .δ 0.0001) ךךךךךךך ךךך ךךךךךךך ךךךך ךךךךך ךך 3.141592653

ךךך ךךךךךךך ךךךך:

ךךךךךך ךךךךךך ךךךך ךךךך ךךךךךך ךך ךךךךךך ךךךךךך ךך ךךךך ךךךך

ךךךךךך ךךך. ךךךךךך ךךךךך ךך ךךךך ךך ך - δךךך ךך ךךךך ך- ךךךך ךךךךךךךך ךך ךךךך ךךך ךךךךך ךךךך.

:ךךךךך#include <stdio.h>#include <math.h>#define DELTA 0.0001/*This program applies the Leibniz series method forcalculating PI, **** to a specified level of precision stated by DELTA. */void main() { int ind=1, sign=1 ; float pi=0.0, next;




do { next = 1.0 / ind;

pi += sign * next; ind += 2;

sign *= -1; } while (next > DELTA);

printf("PI=%f ind=%d \n",pi*4,(ind-1)/2);}/*OUTPUT: PI=3.141797 ind=10003 */

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך:35ךךךךך

*

**

***

****

*****

#include <stdio.h>int main(){int i,j,rows;printf("Enter number of rows:\n");scanf("%d",&rows);for(i=1; i<=rows; i++){

for(j=1; j<=i; j++)printf("*");

printf("\n");}}

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך ךךךך:36ךךךךך

*****




**********

#include <stdio.h>int main(){int i,j,rows;printf("Enter number of rows:\n");scanf("%d",&rows);for(i=1; i<=rows; i++){

for(j=rows; j>=i; j--)printf("*");

printf("\n");}}

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך:37ךךךךך

* **

***

****

*****#include <stdio.h>int main(){int i,j,k,rows,space=0;printf("Enter number of rows:\n");scanf("%d",&rows);space=rows-1;for(i=1; i<=rows; i++){




for(k=space; k>=1; k--)printf(" ");

for(j=1; j<=i; j++)printf("*");

printf("\n");space--;

}}

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך ךךךך:38ךךךךך

***************

#include <stdio.h>int main(){int i,j,k,rows,space=0;printf("Enter number of rows:\n");scanf("%d",&rows);for(i=1; i<=rows; i++){

for(k=1; k<=space; k++)printf(" ");

for(j=rows; j>=i; j--)printf("*");

printf("\n");space++;

}}

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך ךךךךך ךךך:39ךךךךך

*********

*******48 ךךךך 30 ךךךך



********************

#include <stdio.h>int main(){int i,j,k,rows,space=0;printf("Enter number of rows:\n");scanf("%d",&rows);space=rows-1;for(i=1; i<=rows; i++){

for(k=space; k>=1; k--)printf(" ");

for(j=1; j<=i*2-1; j++)printf("*");

printf("\n");space--;

}} - ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךך ךךךךך ךךךך:40ךךךךך

************************************


int i,j,k,rows,space=0;printf("Enter number of rows:\n");scanf("%d",&rows);for(i=1; i<=rows; i++){

for(k=1; k<=space; k++)printf(" ");




for(j=rows*2; j>=i*2; j--)printf("*");

printf("\n");space++;

}}

- ךךךך ךךךךךך ךךךךךךך ךךךךך ךךךךךך ךךךך ךךךךךךך ךךךך41ךךךךך ךךךךך:


int i,j,k,space,rows;printf("Enter number of rows: ");scanf("%d",&rows);space=rows;for(i=1; i<=rows; i++){

for(k=space;k>=i;k--)printf(" ");

for(j=1;j<=i*2-1;j++)printf("*");

printf("\n");}for(i=1; i<=rows; i++){

for(k=1;k<=i+1;k++)printf(" ");

for(j=(rows*2)-(2*i+1);j>=1;j--)printf("*");

printf("\n");}

}

- ךךךך ךךךךךך ךךךךךךך:42ךךךךך

***** ***** ***** ***** *****




***** ***** ***** *****

ךךךךך:

#include <stdio.h>void main(){

int i,j,k,rows,kind,space;printf("Enter number of rows:\n");scanf("%d",&rows);space=rows-1;for(i=1; i<=rows; i++){for(k=space; k>=1; k--)

printf(" ");for(j=1; j<=rows; j++)

printf("*");printf("\n");space--;}space=1;for(i=1; i<=rows-1; i++){for(k=1; k<=space; k++)

printf(" ");for(j=rows*2-1; j>=rows; j--)

printf("*");printf("\n");space++;}

scanf("%d");}

- ךךךך ךךךךךך ךךךךךךך ךךךך ךךךךךך'ך ךךך ךךך ךךך43ךךךךך ךךךךךך ךךךךך, ךך ךךךךךך ךך ךךךך ךךךךך ךך ךךךךך ךךךךךך ךךך

ךךךךך ךךךך.#include<stdio.h>




int main() { int first, second, sum, num, counter = 0; printf("Enter the term : "); scanf("%d", &num); printf("\nEnter First Number : "); scanf("%d", &first); printf("\nEnter Second Number : "); scanf("%d", &second); printf("\nFibonacci Series : %d %d \n", first, second); while (counter < num) { sum = first + second; printf("%d ", sum); first = second; second = sum; counter++; }

printf("\n"); return (0);{

- ךךךך ךךךךךך ךךךךךך ךך ךך ךךךך ךךךךך. 44ךךךךך #include<stdio.h> void main() { int i = 0; char ch=0; for (i = 0; i < 256; i++) { printf("%c ", ch); ch = ch + 1;

if(i%8==0)printf("\n");




} printf("\n");{

ךךךךךךך ךךךך, ךךךךךך ךךךךך 2ךךךך ךךךךךך ךךךךךך - 45ךךךךך .ךךךךך ךךך ךךךך"' ךךךך ךךךךך ך

#include <stdio.h>void main(){ int base,exponent,i,result=1; printf("Enter base and exponent:\n"); scanf("%d%d",&base, &exponent); for (i=0; i<exponent; i++) result*= base; printf("Base %d by Exponent %d = %d\n",base, exponent, result); }

ךךךך ךךךךךך ךךךךךך ךךךךך ךך ךךךךךך ךךךךךך ךך ךךךךךך - 46ךךךךך ךךךךךךך ךךךךך ךך ךךךךךךך ךךךךךךךךך ךךךךךךךךךך ךךך ךךך . 0ךךךך

:ךךךך, ךךךךךך Enter numbers: 0 to end

20.7 30.2 4.6 50. 8 0Max : 50.8Min: 4.6

#include <stdio.h>void main(){ float mispar,min,max; printf("Enter real numbers: 0 to end\n"); scanf("%f",&mispar); min=mispar; max=mispar; while(mispar != 0)




{if(mispar>max)

max=mispar;if(mispar<min)

min=mispar;scanf("%f",&mispar);

} printf("Max: %.2f\n",max); printf("Min: %.2f\n",min); }

ךךךךך ךךךךךךך4 – ךךךך ךךךךךך ךךךךךך ךךך ךךךךךך ךךך 47ךךךךך ךךךךךךך ךךךךך:3ךך ךךך ךךךךך7. ךךךךךךך ך-1.3 ךך 2 ךך ךךךךך 11. ךךךךךךך ך-2.8. ךךךך ךךךךךך ךךךך ךךךך 3

( רררררר ררררר : ) ררררר#include <stdio.h>void main(){ int i,result1=0; for(i=1000;i<9999;i++)

if((i%7==0)&&((i%11==2)||(i%11==3))&&(i % 10 != 8))result1++;

printf("Answer is: %d\n",result1);{

( רררררר רררררר : ) ררררר#include <stdio.h<

void main()}

int i,result1=0,result2=0,result3=0; for(i=1000;i<9999;i++)

}




if(i % 7 == 0)result1++;

if((i % 11 == 2) || (i % 11 == 3))result2++;

if(i % 10 != 8)result3++;

{ printf("Div by 7 no reminder: %d\n",result1);

printf("Div by 11 with reminder 2 or 3: %d\n",result2); printf("No 8 in first digit: %d\n",result3);

}

ך ךךך ךךךךך ךך ךךךךךך'ךךךךך ךךךךך ךך ךךךך ךךךךךך - 48ךךךךך .ךךך ךךךך ךךךךך ךךךךךך ךך ךךך ךךךךךךך ךך

1 1 2 3 5 8 13 21 34 55: ...... ך 'ךךךך ךךךךךך:ךךך

a1=a2=1

an=an−1+an−2

ך'ךךךךךך ךךךךךךךך ךך ךךךךך ךךךךךך 10ךךךך ךך

#include <stdio.h>void main(){ int size=10,i,current,prev1=0,prev2=1; printf("Fibonacci 10 first members:\n"); for (i=0; i<size; i++ ) {

current = prev1 + prev2;prev1 = prev2;prev2 = current;printf("Fibonacci %d is %d\n",i+1,prev1);

}}




- 49ךךךךך ךךךךך ךךךךךך ךך ךךךךך ךךךךךך ךךךךךך ךךךך, ךךךך ךךך ךךךך(ךךךךךך ךךךךךךך ךךךךך ךך ךךךך . ךךךךךךך ךך ךךךך ךךךך

ךךךךךךך ךךךךךך ךך ךךךך ךךךךךךך ךךךךךך ךךך ךךךךךך). ךךך ךךךךךך. ךך ךךךךךךך ךךךךךך) ךךךך ךךך(

#include <stdio.h>void main(){ int counter=0,mispar,sum=0,avg=0,temp=0; printf("Enter integer numbers:\n"); scanf("%d",&mispar); while(temp<mispar) {

counter++;sum+=mispar;temp=mispar;scanf("%d",&mispar);

} avg=sum/counter; printf("Number of numbers: %d\n",counter); printf("Average of numbers: %d\n",avg); }

ךךךךךךך ךךךךךךך ךךך-ךךך ךךךך ךך ךך ךךךךךךך ךךך - 50ךךךךך 7- ךך 3- ךךךךךךך ך

#include <stdio.h>void main(){ int i,result1=0; for(i=10;i<100;i+=2) {

if((i % 7 != 0)&&(i % 3 != 0)) result1+=i;

} printf("Div not by 7 and not by 3: %d\n",result1);




{

.ךךךך ךךךךךך ךךךךךך ךך ךךךךך ךךך ךךך - 51ךךךךך ךךךך, 7-ךךךךךך ךך ךךךך ךךך ךךךךך ך 100ךך 1-ךךךךךךך ךךךך ך

.ךךךךך" ךךך"ךךךךך

#include <stdio.h>void main(){ int size=100,i; printf("The 7 boom game:\n"); for (i=1; i<size; i++ )

{if(i % 7 == 0)

printf("Boom !!!\n");else

printf("Num %d not div by 7\n",i);}

}

:ךךךך ךךךךךך ךךךךךך ךךךךךך ךךךךךך - 52ךךךךך ךךךךך ךךךךךך ךךך ךךךך ךךךך ךךך ךך ךךך.ךךךך ךךךךך. (ךךךךך ךךךך ךך ךךךך ךךךךךךך ךךךך ךךךך ךךךךך

)ךךךךךך ךךךך ךךך ךךךך ךךךךךך ךךךךך ךך ךךךך ךךךךךךך ךךךך ךךךך) ךךך ךךךךך ךךךךךךך(ךךך ךךךךךךך

.ךךךךך(-),ךךךךךךך ךךךךך ךךךךך ךךךךךך ךךךךךךך ךךךך ךךךךך ךךךךךךך

(+). ךךךךךך ךךך ךךךךך ךךך ךךךךך ךךך ךךךך ךך


int i;float money, amount, price;printf("Enter sum of money:\n");scanf("%f",&money);




printf("Enter amount of products:\n");scanf("%f",&amount);for(i=0;i<amount;i++){

printf("Enter price of product number %d:\n",i+1);scanf("%f",&price);money-=price;

}if(money<0)

printf("Debit_balance: %.2f\n",money);else

printf("Credit_balance: +%.2f\n",money); }

ךךךךךך ךךךךך(ךךךך ךךךךךך ךךךךךך ךךךךך ךך ךךךךךך - 53ךךךךך ךךךךךך ךךךךךךך ךךךךך. ךךךך ךךךךךךך ךך ךךךך ךךךך). 100-ך 0ךךך

). 100-ךך ךךךך ך 0-ךךך ך(ךך ךךךך .ךך ךךךךךךך ךךךךךךך ךךךךךך) ךךךך ךךך(ךךךךךךך ךךךךךך ךך ךךךךךך

.ךך ךך ךךךךך ךךךךךך ךךךךךך ךךךךך ךךךךך ךךךךךך:ךךךךךך

Enter grades: 90 89 899Average: 89

#include <stdio.h>void main(){ int counter=0,sum=0,mark,avg=0; printf("Enter students marks -1 for exit:\n"); do {




scanf("%d",&mark); if((mark < 0) || (mark > 100)) {

printf("The mark is wrong !!!\n"); continue;

} else {

counter++; sum+=mark;

} }while(mark!=-1); avg=sum/counter; printf("Number of students marks: %d\n", counter); printf("Average of students: %d\n", avg); }

,Sךךךךך ךך ךךך 5ךךךךך ךך , ךךךך ךךךךךך ךךךךךך ךךךך - 54ךךךךך :ךךךךךךך ךך ךךךךך ךךךך

Enter number: 8Enter char: SThe output is:

SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

SSSSSSS SSSSSSSSS

#include <stdio.h>void tav(int n){

char ch;int i,j,k;printf("Enter char\n");_flushall();




scanf("%c",&ch);printf("The output is: \n");for(i=1; i<n;i++){

for(k=0;k<i;k++)printf("%c",' ');

for(j=0;j<=(n-i)*2;j++) printf("%c",ch);

printf("\n");}for(i=1;i<n;i++){

for(k=n;k>i;k--)printf("%c",' ');

for(j=0;j<=i*2;j++) printf("%c",ch);

printf("\n");}

}void main(){int n;

printf("Enter number: ");scanf("%d",&n); tav(n);

}

ךךךךךךך ךךךךך(ךךךך ךךךךךך ךךךךךך ךךךך ךךך ךךךךך - 55ךךךךך !)ךךךךך ךךךך ךך ךךךך ךךךךך

:ךךךךךךך ךך ךךךךךך ךך ךךךך ךךך

11+22+...+numbernumber


int i, j, result, base=0;float mispar,sum=0;printf("Enter integer number:\n");




scanf("%f",&mispar);while((mispar<0) || (mispar != (int)mispar)){

printf("You entered wrong number tray again:\n");scanf("%f",&mispar);

}for(i=1;i<=mispar;i++){

result = 1;for (j=0; j<i; j++)

result *= i;sum+=result;

}printf("The sum is: %.2f\n",sum);

}

ךך ךךךך, ךךךךך, ךךךך ךךךךךך ךךךךךך ךךךך ךךך - 56ךךךךך !)ךךךךךךך ךךךךך ךךךךך ךךךך ךך ךךךך ךךךךך(

.size*size ךךךךךךך ךךךךךך ךךךךךךךךךךך'/', ךךךךךךך ךךךךך '\', ךךךךךך ךךךךךךך ךךךךך ךך , ךךךךך

ךךךך ךךךךך ךךך'-' ךךךךך ךךךךךךך '|',ךךךךךךך '*'.ךךך ךךךךך 7 ךךךך ךךךךךך :

| / \ \ | /\|/

---*---/|\/ | \

/ | \


int i,j;float size;




printf("Enter number of size:\n");scanf("%f",&size);while((size<0) || ((int)size%2==0) || (size !=

(int)size)){

printf("You entered wrong number tray again:\n");scanf("%f",&size);

}for(i=0; i<(int)size; i++){

for(j=0; j<(int)size; j++){

if((i==j) && (i+j != (int)size/2*2))printf("\\");

elseif((i+j==(int)size-1) && (i != j))

printf("/");elseif((j==(int)size/2) && (i != j))

printf("|");elseif((i==j) && (i+j==(int)size-1))

printf("*");elseif((i==(int)size/2) && (i==(int)size/2))

printf("-");else

printf(" ");}printf("\n");

}}

ךךךך, ךךךךך 5ךךךך ךךךךךך ךךךךךך ךךךךךך ךךך - 57ךךךךך .ךךךךךך ךךךךך ךךךךך ךךךך ךךךך ךךך




ךךךך ךךךךךךך ךךךך ךך ךךךךך ךךךךךךך (ךךךך ךךךךךךך. ךךךךךך 13578 ,46789 ,12358(.

#include <stdio.h>void main(){ int i,counter=0,a,b,c,d,e; for(i=10000;i<1000000;i++)

{a=i/10000;b=i%10000/1000;c=i%10000%1000/100;d=i%10000%1000%100/10;e=i%10000%1000%100%10;if((a<b) && (b<c) && (c<d) && (d<e)) {

printf("Number: %d\n",i);counter++;

}}

printf("Numbers counter: %d\n",counter);}

ךךך ךךךך, ךךךךך 3ךךךך ךךךךךך ךךךךךך ךךךךךך ךךך - 58ךךךךך ךךךך ךךךךךךך. ךךךך ךךךךך ךךךךךךך ךךךך ךך ךךךך ךךךך ךךךךךך

.ךךךךך ךך ךךךך ךךךךךךך ךךךך.328, 124, 138ךךךךךך ךךךךךךך

#include <stdio.h>void main(){ int i,counter=0; for(i=100;i<1000;i++)

{if(((i/100)+(i/10%10))<=(i%10)) {




printf("Number: %d\n",i);counter++;

}}

printf("Numbers counter: %d\n",counter);}

9-ך 1ךךךךךך ךךךך ךךך ךךך , ךךךךך ךך ךךךךךך5 ךךךך –59ךךךךך

ךךךך ךךךךך ךךך ךךך ךךךךךך ךךךךך ךך. 0.9ךך 0.1 ךךךךך ךךךך ךךךך

ךךךךךך ךך ךךך ךךךךךך ךךך ךךךךךך ךךךךך ךך ךךךךךך. ךךךךךך ךךךךךך

.1ךךךךך

ךך ךךךךךך- 7- ך- 1/7, ךך ךךךךךך ךךךךךך 3- ך 1/3: ךךךךךך

.ךךךךךך


int num1,i;float num2;for(i=0;i<5;i++){printf("Enter two numbers: interger (1..9) float under 1

(0.1-0.9):\n");scanf("%d%f",&num1,&num2);num2*=10;if(num2/num1 == 1)

printf("The numbers are Inverse Numbers\n");else

printf("The numbers are not Inverse Numbers\n");

}}




.ךךךךךךך ךךךךךךךך, ךךךךך ךך ךךךךךך ךךךךך5 ךךךך –60ךךךךך

ךךךךךך. ךךךך ךךךךך ךךך ךךך ךךךךךך ךךךךך ךך ךךךךךך ךךךךךך

.0ךךךךךך ךך ךךך ךךךךךך ךךך ךךךךך ךךךךך ךך ךךךךך

.ךך ךךךךךך ךךךךךך- 42- ך 42, ךך ךךךךךך ךךךךךך- 5- ך 5: ךךךךךך#include <stdio.h>void main(){

int i,num1,num2;for(i=0;i<5;i++){

printf("Enter two integers:\n");scanf("%d%d",&num1,&num2);if(num2+num1 == 0)

printf("The numbers are Opposite Numbers\n");else

printf("The numbers are not Opposite Numbers\n");

}}

.ךךך ךךךךךך ךךךךך 100- ך 2ךךך ךך ךך ךךךךךךך ךךך – 61ךךךךך

ךך ךךךךך 1-ךךךךךך ךךךךך ךך ךךךךךך ךךך ךךךך ךך ךךךךךךך ךךךך ך

.ךך ךךךך ךךךךך ךךךך ךךךךךך ךךךך

=1+2+3+4+6: ךך ךךךך ךךך ךך ךךךך ךך ךךךךךך ךךך 12ךךךךך : ךךךךךך.12ךךךך ךךךך ךךךךךך ךךךךךך 16

.23=1+2+4+5+10: ךך ךךך ךךךך ךךך ךך ךךךך ךךךךךך ךךך 20ךךךךך


int i,j,sum=0,cnt=1;for(i=1;i<100;i++){

for(j=1;j<i;j++)if(i%j==0)

sum+=j;if(sum>i)




printf("%3d. Number %d is Abundant Number\n",cnt++,i);

sum=0;}

}


C Programming Answers for chapter 5

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