2

userId_undefined

ZhangCxuan ^—^

秩序白银

2024-07-25 17:21:07

发布于：浙江

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#include <iostream>
using namespace std;
int main() {
    cin.tie();
    cout.tie();
    int n,a[1000005],cnt=0;
    cin >> n;
    for (int i = 1;i <= n;i ++) {
        cin >> a[i];
    }
    for (int i = 1;i <= n;i ++) {
        for (int j = i+1;j <= n;j ++) {
            if (a[i] > a[j]) cnt ++;
        }
    }
    cout << cnt;
    return 0;
}
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