// Modify this code to calculate the sum of all integers entered
// by the user
// The loop should end when the user enters non-integer data
//
// Written by: Angela Finlayson
// Date: 14/09/2024

#include <stdio.h>

int main(void) {  
    int valid_int;
    int sum = 0;  
    int number = 0;
    int end_loop = 0;       // 1. Initialise the loop control variable
    while (end_loop == 0) { // 2. Test the loop condition 
        valid_int = scanf("%d", &number); 
        if (valid_int != 1) {   // We want a negative value to end the loop
            end_loop = 1;   // 3. Update the loop control variable 
        } else {
            printf("You entered %d\n", number);
            sum = sum + number;
        }
    }
    printf("Sum was %d\n", sum);
    return 0;
}