Submission #890754
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef pair< int, int > Pi; int main() { int N; cin >> N; map< Pi, int > mp; for(int i = 0; i < N; i++) { int A; cin >> A; --A; mp[minmax(i, A)]++; } int ret = 0; for(auto k : mp) { if(k.second == 2) ++ret; } cout << ret << endl; }
Submission Info
Submission Time | |
---|---|
Task | B - Friendly Rabbits |
User | ei13333 |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 346 Byte |
Status | AC |
Exec Time | 62 ms |
Memory | 6528 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 | 256 KB |
0_01.txt | AC | 2 ms | 256 KB |
0_02.txt | AC | 3 ms | 256 KB |
1_00.txt | AC | 2 ms | 256 KB |
1_01.txt | AC | 62 ms | 3328 KB |
1_02.txt | AC | 60 ms | 6528 KB |
1_03.txt | AC | 59 ms | 6144 KB |
1_04.txt | AC | 60 ms | 6400 KB |
1_05.txt | AC | 61 ms | 6528 KB |
1_06.txt | AC | 61 ms | 6528 KB |
1_07.txt | AC | 61 ms | 6528 KB |
1_08.txt | AC | 23 ms | 2560 KB |
1_09.txt | AC | 50 ms | 5376 KB |
1_10.txt | AC | 42 ms | 4608 KB |
1_11.txt | AC | 11 ms | 1280 KB |