Submission #891663
Source Code Expand
#include <iostream> #define reep(i,n,m) for(int i=(n);i<(m);i++) #define rep(i,n) reep(i,0,n) using namespace std; int a[100000]; int main(){ rep(i,100000){ a[i] = -1; } int N; cin >> N; int ans=0; rep(i,N){ int c; cin >> c; c--; if(a[c]==i){ ans++; } a[i]=c; } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | B - Friendly Rabbits |
User | otama_jaccy |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 339 Byte |
Status | AC |
Exec Time | 35 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 3 ms | 640 KB |
0_01.txt | AC | 3 ms | 640 KB |
0_02.txt | AC | 3 ms | 640 KB |
1_00.txt | AC | 3 ms | 640 KB |
1_01.txt | AC | 35 ms | 640 KB |
1_02.txt | AC | 35 ms | 640 KB |
1_03.txt | AC | 35 ms | 640 KB |
1_04.txt | AC | 35 ms | 640 KB |
1_05.txt | AC | 35 ms | 640 KB |
1_06.txt | AC | 35 ms | 640 KB |
1_07.txt | AC | 35 ms | 640 KB |
1_08.txt | AC | 15 ms | 640 KB |
1_09.txt | AC | 29 ms | 640 KB |
1_10.txt | AC | 25 ms | 640 KB |
1_11.txt | AC | 8 ms | 640 KB |