Submission #2250047
Source Code Expand
#include<bits/stdc++.h> #define N 500005 using namespace std; int n,a[N]; int main(){ scanf("%d",&n); for (int i=1;i<=n;i++) scanf("%d",&a[i]); int ans=0; for (int i=1;i<n;i++){ if (a[i]==i){ swap(a[i],a[i+1]); ans++; } } if (a[n]==n) ans++; printf("%d\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Derangement |
User | trans |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 308 Byte |
Status | AC |
Exec Time | 11 ms |
Memory | 640 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:6:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:7:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i=1;i<=n;i++) scanf("%d",&a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
Set Name | Test Cases |
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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 | 10 ms | 640 KB |
1_006.txt | AC | 10 ms | 640 KB |
1_007.txt | AC | 10 ms | 640 KB |
1_008.txt | AC | 10 ms | 640 KB |
1_009.txt | AC | 10 ms | 640 KB |
1_010.txt | AC | 10 ms | 640 KB |
1_011.txt | AC | 10 ms | 640 KB |
1_012.txt | AC | 10 ms | 640 KB |
1_013.txt | AC | 11 ms | 640 KB |
1_014.txt | AC | 10 ms | 640 KB |