Question

Write a program in C:

Using atoi() function to calculate the average of an input series of number. User enter q or Q it will exit program and return average of series of number above.

Example output:

Enter the first number or Q to quit: 5

Enter the next number or Q to quit: 8

Enter the next number or Q to quit: -1

Enter the next number or Q to quit: 58

Enter the next number or Q to quit: q

Average: 17.5

Answer 1

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main(void)

{

int count = 0;

double sum = 0;

char input[] = "";

do

{

if(count == 0)

{

printf("\nEnter the first number or Q to quit: ");

}

else

{

printf("Enter the next number or Q to quit: ");

}

scanf("%s", input);

if(strcmp(input, "q") == 0 || strcmp(input, "Q") == 0)

break;

int num = atoi(input);

sum += num;

count++;

}while(strcmp(input, "q") != 0 || strcmp(input, "Q") != 0);

double average = (double)(sum / count);

printf("Average: %0.1f", average);

return 0;

}

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