accumulateur

#include <stdio.h>

int accumulator(int value) {
    static int sum = 0;  // persists between function calls
    sum += value;
    return sum;
}

int main() {
    printf("%d\n", accumulator(5));  // Output: 5
    printf("%d\n", accumulator(3));  // Output: 8
    printf("%d\n", accumulator(10)); // Output: 18
    return 0;
}