[BOJ] 15969 : 행복

#include <cstdio>
int n, x, mn = 1e9, mx = -1e9;
int main() {
    scanf("%d", &n);
    while (n--) {
        scanf("%d", &x);
        if (mn > x) mn = x;
        if (mx < x) mx = x;
    }
    printf("%d", mx - mn);
    return 0;
}