Submission #1794009
Source Code Expand
#include <bits/stdc++.h> using namespace std; using ll = long long; template <typename T> T inf; template <> constexpr int inf<int> = 1e9; template <> constexpr ll inf<ll> = 1e18; int main() { int N, M; cin >> N >> M; vector<int> cnt(N); for(int i = 0; i < M; ++i) { int a, b; cin >> a >> b; cnt[a - 1]++; cnt[b - 1]++; } bool ok = true; for(int i = 0; i < N; ++i) { ok &= cnt[i] % 2 == 0; } if(ok) { cout << "YES" << endl; } else { cout << "NO" << endl; } }
Submission Info
Submission Time | |
---|---|
Task | B - Unplanned Queries |
User | Suibaka |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 591 Byte |
Status | AC |
Exec Time | 61 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 | 61 ms | 640 KB |
in10.txt | AC | 61 ms | 640 KB |
in11.txt | AC | 49 ms | 256 KB |
in12.txt | AC | 56 ms | 640 KB |
in13.txt | AC | 55 ms | 640 KB |
in14.txt | AC | 56 ms | 640 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 56 ms | 640 KB |
in3.txt | AC | 56 ms | 640 KB |
in4.txt | AC | 56 ms | 640 KB |
in5.txt | AC | 56 ms | 640 KB |
in6.txt | AC | 56 ms | 640 KB |
in7.txt | AC | 56 ms | 640 KB |
in8.txt | AC | 56 ms | 640 KB |
in9.txt | AC | 60 ms | 640 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |