Submission #1262816
Source Code Expand
#include "bits/stdc++.h" using namespace std; #ifdef _DEBUG #include "dump.hpp" #else #define dump(...) #endif //#define int long long #define rep(i,a,b) for(int i=(a);i<(b);i++) #define rrep(i,a,b) for(int i=(b)-1;i>=(a);i--) #define all(c) begin(c),end(c) const int INF = sizeof(int) == sizeof(long long) ? 0x3f3f3f3f3f3f3f3fLL : 0x3f3f3f3f; const int MOD = (int)(1e9) + 7; template<class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return true; } return false; } template<class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return true; } return false; } signed main() { cin.tie(0); ios::sync_with_stdio(false); int N, M; cin >> N >> M; vector<int> cnt(N); rep(i, 0, M) { int a, b; cin >> a >> b; a--, b--; cnt[a]++; cnt[b]++; } rep(i, 0, N) { if (cnt[i] % 2) { cout << "NO" << endl; return 0; } } cout << "YES" << endl; return 0; }
Submission Info
Submission Time | |
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Task | B - Unplanned Queries |
User | minaminao |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 916 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 | 15 ms | 256 KB |
in12.txt | AC | 17 ms | 640 KB |
in13.txt | AC | 16 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 |