Submission #1262804
Source Code Expand
#include <bits/stdc++.h> using namespace std; int N, M, arr[100005]; int main() { scanf("%d%d", &N, &M); for (int i = 0; i < M; i++) { int a, b; scanf("%d%d", &a, &b); arr[a] = !arr[a]; arr[b] = !arr[b]; } for (int i = 1; i <= N; i++) { if (arr[i] != 0) { printf("NO\n"); return 0; } } printf("YES\n"); }
Submission Info
Submission Time | |
---|---|
Task | B - Unplanned Queries |
User | pwypeanut |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 354 Byte |
Status | AC |
Exec Time | 18 ms |
Memory | 640 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:7:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ ./Main.cpp:10:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
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 | 18 ms | 640 KB |
in10.txt | AC | 18 ms | 640 KB |
in11.txt | AC | 16 ms | 256 KB |
in12.txt | AC | 18 ms | 640 KB |
in13.txt | AC | 18 ms | 640 KB |
in14.txt | AC | 18 ms | 640 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 18 ms | 640 KB |
in3.txt | AC | 18 ms | 640 KB |
in4.txt | AC | 18 ms | 640 KB |
in5.txt | AC | 18 ms | 640 KB |
in6.txt | AC | 18 ms | 640 KB |
in7.txt | AC | 18 ms | 640 KB |
in8.txt | AC | 18 ms | 640 KB |
in9.txt | AC | 18 ms | 640 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |