Submission #8805301
Source Code Expand
#include <bits/stdc++.h> #define REP(i, n) for (int i = 0; i < n; i++) #define REPR(i, n) for (int i = n; i >= 0; i--) #define FOR(i, m, n) for (int i = m; i < n; i++) #define ALL(v) v.begin(), v.end() using namespace std; typedef long long ll; typedef long double ld; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n,m; cin >> n >> m; vector<int> cnt(n,0); REP(i,m){ int a,b; cin >> a >> b; a--,b--; cnt[a]++, cnt[b]++; } REP(i,n){ if(cnt[i]%2==1){ puts("NO"); return 0; } } puts("YES"); return 0; }
Submission Info
Submission Time | |
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Task | B - Unplanned Queries |
User | vistoron15 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 606 Byte |
Status | AC |
Exec Time | 17 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt |
All | sample1.txt, sample2.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 17 ms | 640 KB |
in10.txt | AC | 17 ms | 640 KB |
in11.txt | AC | 16 ms | 256 KB |
in12.txt | AC | 17 ms | 640 KB |
in13.txt | AC | 17 ms | 640 KB |
in14.txt | AC | 17 ms | 640 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 17 ms | 640 KB |
in3.txt | AC | 17 ms | 640 KB |
in4.txt | AC | 17 ms | 640 KB |
in5.txt | AC | 17 ms | 640 KB |
in6.txt | AC | 17 ms | 640 KB |
in7.txt | AC | 17 ms | 640 KB |
in8.txt | AC | 17 ms | 640 KB |
in9.txt | AC | 17 ms | 640 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |