Submission #1594370


Source Code Expand

#include <iostream>
#include <cstdio>

using namespace std;
const int maxn = 100000;
int n,a[maxn+2],t,res;

int main()
{
	ios_base::sync_with_stdio(0);
	//freopen("input.txt","r",stdin);
	//freopen("output.txt","w",stdout);
	cin >> n;
	for (int i=1; i<=n; i++)
	cin >> a[i];
	res=0;
	for (int i=1; i<=n; i++)
	if (i==a[i])
	{
		res++;
		t=a[i];
		a[i]=a[i+1];
		a[i+1]=t;
	}
	cout << res;
	return 0;
}
		

Submission Info

Submission Time
Task D - Derangement
User bvd
Language C++14 (GCC 5.4.1)
Score 400
Code Size 432 Byte
Status AC
Exec Time 10 ms
Memory 640 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 4
AC × 15
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 AC 9 ms 640 KB
1_006.txt AC 9 ms 640 KB
1_007.txt AC 9 ms 640 KB
1_008.txt AC 9 ms 640 KB
1_009.txt AC 9 ms 640 KB
1_010.txt AC 9 ms 640 KB
1_011.txt AC 9 ms 640 KB
1_012.txt AC 9 ms 640 KB
1_013.txt AC 10 ms 640 KB
1_014.txt AC 9 ms 640 KB