Question

C programming!

Write a program that reads integers until 0 and prints the sum of values on odd positions minus the sum of values on even positions. Let ?1, ?2, … , ??, 0 be the input sequence. Then the program prints the value of ?1 − ?2 + ?3 − ?4 + ⋯ ??. The input is a sequence of integers that always contains at least 0 and the output will be a single number. For example, for input 2 5 7 0, the program will print 4 because 2-5+7=4. If the input is only 0, the program will print 0.

Example of input: 5 19 12 0

Corresponding output: -2

Example of input: 10 8 9 11 24 0

Corresponding output: 24

Answer 1

#include <stdio.h>

int main()
{
    int sum = 0, n, count = 0;
    
    printf("Enter input: ");
    scanf("%d",&n);
    
    while(n!=0){
        if(count%2==0){
            sum += n;
        }
        else{
            sum -= n;
        }
        scanf("%d",&n);
        count++;
    }
    
    printf("Sum: %d\n",sum);
    return 0;
}

$\color{blue}\underline{Output:}$

Enter input: 5 19 12 0 Sum: -2

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