Submission #2522801
Source Code Expand
//#define _GLIBCXX_DEBUG #include<bits/stdc++.h> using namespace std; #define pb push_back//also for STRING #define MAX_N 100000 struct edge{ int to,cost; }; int d[MAX_N]; vector<edge> g[MAX_N]; bool f[MAX_N]; bool dfs(int v){ f[v]=true; for(int j=0;j<g[v].size();++j){ int w=g[v][j].to; if(f[w]){ if(d[w]!=d[v]+g[v][j].cost) return false; continue; } d[w]=d[v]+g[v][j].cost; if(!dfs(w)) return false; } return true; } int main(){ int n,m; scanf("%d %d",&n,&m); while(m-- > 0){ int l,r,d; scanf("%d %d %d",&l,&r,&d); g[--l].pb((edge){--r,d}); g[r].pb((edge){l,-d}); } fill(f,f+n,false); for(int v=0;v<n;++v){ if(!dfs(v)){ printf("No\n"); return 0; } } printf("Yes\n"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - People on a Line |
User | neander |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 780 Byte |
Status | AC |
Exec Time | 100 ms |
Memory | 12032 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:32:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ ./Main.cpp:35:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&l,&r,&d); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | sample01.txt, sample02.txt, sample03.txt, sample04.txt, sample05.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, sample01.txt, sample02.txt, sample03.txt, sample04.txt, sample05.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 74 ms | 8436 KB |
02.txt | AC | 87 ms | 10100 KB |
03.txt | AC | 86 ms | 9344 KB |
04.txt | AC | 100 ms | 12032 KB |
05.txt | AC | 74 ms | 8576 KB |
06.txt | AC | 72 ms | 9088 KB |
07.txt | AC | 70 ms | 8448 KB |
08.txt | AC | 66 ms | 8704 KB |
09.txt | AC | 61 ms | 8320 KB |
10.txt | AC | 58 ms | 8064 KB |
11.txt | AC | 54 ms | 8192 KB |
12.txt | AC | 60 ms | 7808 KB |
13.txt | AC | 78 ms | 8832 KB |
14.txt | AC | 63 ms | 8448 KB |
15.txt | AC | 61 ms | 7936 KB |
16.txt | AC | 59 ms | 8704 KB |
17.txt | AC | 89 ms | 11392 KB |
18.txt | AC | 80 ms | 8576 KB |
19.txt | AC | 67 ms | 8704 KB |
20.txt | AC | 67 ms | 8704 KB |
21.txt | AC | 76 ms | 9344 KB |
22.txt | AC | 58 ms | 8320 KB |
23.txt | AC | 81 ms | 9728 KB |
24.txt | AC | 58 ms | 8320 KB |
25.txt | AC | 96 ms | 11264 KB |
26.txt | AC | 87 ms | 11392 KB |
27.txt | AC | 53 ms | 9856 KB |
28.txt | AC | 68 ms | 9216 KB |
29.txt | AC | 53 ms | 10752 KB |
30.txt | AC | 64 ms | 8960 KB |
31.txt | AC | 52 ms | 9088 KB |
32.txt | AC | 64 ms | 8960 KB |
33.txt | AC | 86 ms | 11264 KB |
34.txt | AC | 76 ms | 9984 KB |
35.txt | AC | 49 ms | 9600 KB |
36.txt | AC | 57 ms | 8064 KB |
37.txt | AC | 50 ms | 9984 KB |
38.txt | AC | 57 ms | 8704 KB |
39.txt | AC | 42 ms | 6656 KB |
40.txt | AC | 56 ms | 8320 KB |
41.txt | AC | 3 ms | 2688 KB |
42.txt | AC | 27 ms | 5248 KB |
sample01.txt | AC | 2 ms | 2560 KB |
sample02.txt | AC | 2 ms | 2560 KB |
sample03.txt | AC | 2 ms | 2560 KB |
sample04.txt | AC | 2 ms | 2560 KB |
sample05.txt | AC | 2 ms | 2560 KB |