Submission #1316087

#	Time	Username	Problem	Language	Result	Execution time	Memory
1316087		comet0	Group Photo (JOI21_ho_t3)	C++20	0 / 100	0 ms	332 KiB

Main

#include <bits/stdc++.h>
using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
    
    int n; cin >> n;
    vector<int> a(n); for (auto& x : a) cin >> x;
    
    int ans = 0;
    for (int i = 0; i < n - 1; i++) {
        if (a[i] < a[i+1] + 2) continue;
        
        int j = i + 1;
        while (j < n && a[i] >= a[j] + 2) j++;
        if (j >= n) continue;
        while (j > i + 1) {
            swap(a[j], a[j-1]);
            ans++;
            j--;
        }
    }
    cout << ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 32
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36