Question

Expand the code below to display both the value of the loop variable and this value squared. Put the pairs of values on a new line.

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
int i;
int a;
int b;

do
{
printf("Please enter the lower value: ");
scanf("%d", &a);

printf("Please enter the upper value: ");
scanf("%d", &b);

if (a>b)
printf("The upper value must be greater than the lower value\n\n");
}

while (a>b);

for(i=a; i<=b; i++)
printf("%d ", i);

return 0;
}

Answer 1

#include <stdio.h>
#include <stdlib.h>

int main(void) {
    int i;
    int a;
    int b;

    do {
        printf("Please enter the lower value: ");
        scanf("%d", &a);

        printf("Please enter the upper value: ");
        scanf("%d", &b);

        if (a > b)
            printf("The upper value must be greater than the lower value\n\n");
    } while (a > b);

    for (i = a; i <= b; i++)
        printf("%d, %d\n", i, i*i);

    return 0;
}