Submission #4047121
Source Code Expand
#include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; int a[100010]; int n,m; int main(){ ios::sync_with_stdio(false); cin.tie(0); cin >> n >> m; for (int i = 0; i < m; i++) { int aa, bb; cin >> aa >> bb; a[aa]++; a[bb]++; } for (int i = 1; i <= n; i++) { if (a[i] & 1) { cout << "NO\n"; return 0; } } cout << "YES\n"; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Unplanned Queries |
User | xuelei |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 460 Byte |
Status | AC |
Exec Time | 17 ms |
Memory | 768 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
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 | 16 ms | 640 KB |
in11.txt | AC | 15 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 | 16 ms | 640 KB |
in5.txt | AC | 17 ms | 640 KB |
in6.txt | AC | 16 ms | 640 KB |
in7.txt | AC | 16 ms | 768 KB |
in8.txt | AC | 16 ms | 640 KB |
in9.txt | AC | 17 ms | 640 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |