Sum of n numbers

#include <stdio.h>

int main(int argc, char *argv[]){
    int x;  scanf("%d", &x);
    int sum = 0;
    for(int i = 0 ; i < x; i++){
        int a;  scanf("%d", &a);
        sum += a;
    }
    printf("sum : %d\n", sum);
       return 0;

}