codefores1637A

先看题目哦（看不懂的小可爱点击右上角翻译）

Problem - 1637A - Codeforceshttps://codeforces.com/problemset/problem/1637/A

代码来啦：

#include<algorithm>
#include<iostream>
#include <vector>
using namespace std;
int main() {
    int t;
    cin >> t;
    for (int i = 0; i < t; i++) {
        int n;
        int u;
        cin >> n;
        vector<int> a;
        for (int i = 0; i < n; i++) {
            cin >> u;
            a.push_back(u);
        }
        if (!is_sorted(a.begin(), a.end()))
            cout << "YES" << endl;
        else
            cout << "NO" << endl;
    }
}