Submission #1608371


Source Code Expand

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

int main() {
    ios::sync_with_stdio(false);
    int n; cin >> n;
    vector<int> p(n+1);
    for(int i = 1; i <= n; ++i) {
        int x; cin >> x;
        p[i] = x;
    }
    int swaps = 0;
    for(int i = 1; i <=n; ++i) {
        if(i == p[i]) {
            if(i == 1)
                i += 1;
            swaps++;
        }
    }
    cout << swaps << '\n';

    return 0;
}

Submission Info

Submission Time
Task D - Derangement
User lightyagami1
Language C++14 (GCC 5.4.1)
Score 0
Code Size 470 Byte
Status WA
Exec Time 9 ms
Memory 640 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 4
AC × 10
WA × 5
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt
Case Name Status Exec Time Memory
0_000.txt AC 1 ms 256 KB
0_001.txt AC 1 ms 256 KB
0_002.txt AC 1 ms 256 KB
0_003.txt AC 1 ms 256 KB
1_004.txt AC 1 ms 256 KB
1_005.txt WA 9 ms 640 KB
1_006.txt AC 9 ms 640 KB
1_007.txt AC 9 ms 640 KB
1_008.txt WA 9 ms 640 KB
1_009.txt AC 9 ms 640 KB
1_010.txt AC 9 ms 640 KB
1_011.txt WA 9 ms 640 KB
1_012.txt WA 9 ms 640 KB
1_013.txt WA 9 ms 640 KB
1_014.txt AC 9 ms 640 KB