题解

#include <iostream>
#include <vector>
#include <climits> // 用于 INT_MAX 和 INT_MIN

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr); // 加速输入输出

    int n;
    cin >> n;

    long long max_val = LLONG_MIN; // 用long long防止溢出
    long long min_val = LLONG_MAX;

    for (int i = 0; i < n; ++i) {
        long long num;
        cin >> num;
        if (num > max_val) max_val = num;
        if (num < min_val) min_val = num;
    }

    cout << max_val - min_val << endl;

    return 0;
}