Submission #1771577
Source Code Expand
#include<bits/stdc++.h> using namespace std; int n,t,w; int d[200010]; pair<int,int> q[200010]; map<int,int> h[200010]; int main() {int i,j,x,y,k; map<int,int>::iterator p,p1; scanf("%d",&n); for(i=1;i<n;i++) { scanf("%d%d",&x,&y); h[x][y]=1; h[y][x]=1; d[x]++; d[y]++; } t=1; w=0; for(i=1;i<n;i++) { scanf("%d%d",&x,&y); h[x][y]++; h[y][x]++; d[x]++; d[y]++; if(h[x][y]==2) q[++w]=make_pair(x,y); } while(t<=w) { x=q[t].first; y=q[t].second; if(d[x]<d[y]) swap(x,y); h[x][y]-=2; h[y][x]-=2; for(p=h[y].begin();p!=h[y].end();p++) { k=(h[x][(*p).first]+=(*p).second); h[(*p).first][x]+=(*p).second; h[(*p).first][y]-=(*p).second; if(k==2) q[++w]=make_pair(x,(*p).first); } d[x]+=d[y]-2; t++; } printf("%s\n",t==n?"YES":"NO"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Blue and Red Tree |
User | xhk |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 851 Byte |
Status | WA |
Exec Time | 6332 ms |
Memory | 487424 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:13:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:15:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] { scanf("%d%d",&x,&y); ^ ./Main.cpp:24:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] { scanf("%d%d",&x,&y); ^
Judge Result
Set Name | Sample | All | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1400 | ||||||||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 6 ms | 10496 KB |
in10.txt | AC | 164 ms | 29568 KB |
in11.txt | WA | 4397 ms | 239104 KB |
in12.txt | WA | 4260 ms | 238464 KB |
in13.txt | WA | 4439 ms | 229760 KB |
in14.txt | TLE | 6322 ms | 320000 KB |
in15.txt | TLE | 6322 ms | 323584 KB |
in16.txt | WA | 4608 ms | 245632 KB |
in17.txt | TLE | 6321 ms | 299648 KB |
in18.txt | TLE | 6322 ms | 319616 KB |
in19.txt | MLE | 5059 ms | 262912 KB |
in2.txt | AC | 6 ms | 10496 KB |
in20.txt | WA | 4807 ms | 234112 KB |
in21.txt | AC | 4518 ms | 247296 KB |
in22.txt | TLE | 6322 ms | 314892 KB |
in23.txt | AC | 4647 ms | 215296 KB |
in24.txt | AC | 5179 ms | 250240 KB |
in25.txt | TLE | 6324 ms | 354176 KB |
in26.txt | TLE | 6322 ms | 320128 KB |
in27.txt | WA | 4694 ms | 219904 KB |
in28.txt | WA | 4274 ms | 219008 KB |
in29.txt | WA | 4488 ms | 240896 KB |
in3.txt | AC | 6 ms | 10496 KB |
in30.txt | WA | 4737 ms | 238720 KB |
in31.txt | AC | 465 ms | 39040 KB |
in32.txt | WA | 503 ms | 39040 KB |
in33.txt | WA | 992 ms | 39040 KB |
in34.txt | AC | 533 ms | 39040 KB |
in35.txt | WA | 539 ms | 39040 KB |
in36.txt | WA | 620 ms | 39168 KB |
in37.txt | AC | 514 ms | 39040 KB |
in38.txt | AC | 451 ms | 39040 KB |
in39.txt | AC | 501 ms | 39040 KB |
in4.txt | AC | 155 ms | 29568 KB |
in40.txt | WA | 1012 ms | 39680 KB |
in41.txt | AC | 505 ms | 39040 KB |
in42.txt | AC | 475 ms | 39040 KB |
in43.txt | AC | 500 ms | 39040 KB |
in44.txt | AC | 508 ms | 39040 KB |
in45.txt | AC | 486 ms | 39040 KB |
in46.txt | AC | 462 ms | 39040 KB |
in47.txt | TLE | 6332 ms | 487424 KB |
in5.txt | AC | 160 ms | 29568 KB |
in6.txt | AC | 466 ms | 39040 KB |
in7.txt | AC | 158 ms | 29568 KB |
in8.txt | AC | 161 ms | 29568 KB |
in9.txt | AC | 153 ms | 29568 KB |
sample1.txt | AC | 6 ms | 10496 KB |
sample2.txt | AC | 6 ms | 10496 KB |
sample3.txt | AC | 6 ms | 10496 KB |