ABC280B前缀和倒推元素

s[i] = s[i-1] + a[i]
a[i] = s[i] - s[i-1]

#include <stdio.h>
int n, m, i, j, k, s, t;
int main(){
    scanf("%d", &n);
    for(i=1; i<=n; i++){
        scanf("%d", &s);
        printf("%d ", s-t);
        t = s;
    }
    return 0;
}