Submission #2836456
Source Code Expand
#include<bits/stdc++.h> #define ll long long using namespace std; const int N=1e5+5; inline int read(){ int x=0; char ch=getchar(); for(;!isdigit(ch);ch=getchar()); for(;isdigit(ch);ch=getchar()) x=x*10+ch-'0'; return x; } int n,d[N],cnt,m; int main(){ n=read(),m=read(); while(m--) d[read()]^=1,d[read()]^=1; for(int i=1;i<=n;cnt+=d[i],i++) if(cnt&d[i]){ puts("NO"); return 0;} puts("YES"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Unplanned Queries |
User | JYYHH |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 435 Byte |
Status | AC |
Exec Time | 10 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 | 10 ms | 640 KB |
in10.txt | AC | 10 ms | 640 KB |
in11.txt | AC | 9 ms | 256 KB |
in12.txt | AC | 10 ms | 640 KB |
in13.txt | AC | 10 ms | 640 KB |
in14.txt | AC | 10 ms | 640 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 10 ms | 640 KB |
in3.txt | AC | 10 ms | 640 KB |
in4.txt | AC | 10 ms | 640 KB |
in5.txt | AC | 10 ms | 640 KB |
in6.txt | AC | 10 ms | 640 KB |
in7.txt | AC | 10 ms | 640 KB |
in8.txt | AC | 10 ms | 640 KB |
in9.txt | AC | 10 ms | 640 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |