Submission #2212502
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef long long ll; typedef vector<int> vi; typedef pair<int,int> pi; #define mod 1000000007 #define rep(i,a,b) for (int i = a; i <= b; i++) #define f first #define s second #define pb push_back #define mp make_pair int n, a[202020], ans; int main(){ cin >> n; rep(i, 1, n)cin >> a[i]; rep(i, 1, n-1){ if(a[i]==i)swap(a[i], a[i+1]), ans++; } rep(i, 1, n-1){ if(a[i]==i)swap(a[i], a[i+1]), ans++; } cout << ans << endl; return 0;}
Submission Info
Submission Time | |
---|---|
Task | D - Derangement |
User | KazukiMH |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 510 Byte |
Status | WA |
Exec Time | 37 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 400 | ||||||
Status |
|
|
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 | WA | 1 ms | 256 KB |
1_005.txt | AC | 37 ms | 640 KB |
1_006.txt | AC | 36 ms | 640 KB |
1_007.txt | AC | 36 ms | 640 KB |
1_008.txt | WA | 36 ms | 640 KB |
1_009.txt | WA | 36 ms | 640 KB |
1_010.txt | AC | 36 ms | 640 KB |
1_011.txt | WA | 36 ms | 640 KB |
1_012.txt | AC | 36 ms | 640 KB |
1_013.txt | AC | 36 ms | 640 KB |
1_014.txt | AC | 37 ms | 640 KB |