Submission #2029402
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#include<bits/stdc++.h> #define rep(i,a,b) for(int i=a;i<b;i++) #define rrep(i,a,b) for(int i=a;i>=b;i--) #define fore(i,a) for(auto &i:a) #define all(x) (x).begin(),(x).end() #pragma GCC optimize ("-O3") using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); } typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60; template<class T>bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a = b; return 1; } return 0; } //--------------------------------------------------------------------------------------------------- /*--------------------------------------------------------------------------------------------------- ∧_∧ ∧_∧ (´<_` ) Welcome to My Coding Space! ( ´_ゝ`) / ⌒i / \ | | / / ̄ ̄ ̄ ̄/ | __(__ニつ/ _/ .| .|____ \/____/ (u ⊃ ---------------------------------------------------------------------------------------------------*/ int N, M; vector<pair<int, int>> E[201010]; vector<pair<int, int>> EE[201010]; int vis[201010], col[201010]; //--------------------------------------------------------------------------------------------------- #define no "No" #define yes "Yes" string solve() { rep(i, 0, N) if (!vis[i]) { col[i] = 0; vis[i] = 1; queue<int> que; que.push(i); while (!que.empty()) { int q = que.front(); que.pop(); fore(p, E[q]) { if (vis[p.first]) { if (col[q] + p.second != col[p.first]) return no; } else { col[p.first] = col[q] + p.second; vis[p.first] = 1; que.push(p.first); } } fore(p, EE[q]) { if (vis[p.first]) { if (col[q] - p.second != col[p.first]) return no; } else { col[p.first] = col[q] - p.second; vis[p.first] = 1; que.push(p.first); } } } } return yes; } //--------------------------------------------------------------------------------------------------- void _main() { cin >> N >> M; rep(i, 0, M) { int a, b, c; cin >> a >> b >> c; a--; b--; E[a].push_back({ b, c }); EE[b].push_back({ a, c }); } cout << solve() << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - People on a Line |
User | hamayanhamayan |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 2779 Byte |
Status | AC |
Exec Time | 108 ms |
Memory | 17664 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
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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 | 96 ms | 17268 KB |
02.txt | AC | 99 ms | 17268 KB |
03.txt | AC | 79 ms | 17536 KB |
04.txt | AC | 98 ms | 17664 KB |
05.txt | AC | 85 ms | 17024 KB |
06.txt | AC | 75 ms | 16512 KB |
07.txt | AC | 83 ms | 17280 KB |
08.txt | AC | 62 ms | 16896 KB |
09.txt | AC | 61 ms | 16256 KB |
10.txt | AC | 65 ms | 16768 KB |
11.txt | AC | 69 ms | 16256 KB |
12.txt | AC | 62 ms | 16256 KB |
13.txt | AC | 73 ms | 16640 KB |
14.txt | AC | 60 ms | 16384 KB |
15.txt | AC | 62 ms | 16256 KB |
16.txt | AC | 59 ms | 16384 KB |
17.txt | AC | 108 ms | 17152 KB |
18.txt | AC | 100 ms | 16768 KB |
19.txt | AC | 66 ms | 16512 KB |
20.txt | AC | 66 ms | 16512 KB |
21.txt | AC | 87 ms | 17152 KB |
22.txt | AC | 76 ms | 16512 KB |
23.txt | AC | 103 ms | 17152 KB |
24.txt | AC | 56 ms | 16512 KB |
25.txt | AC | 97 ms | 17152 KB |
26.txt | AC | 100 ms | 17152 KB |
27.txt | AC | 69 ms | 16000 KB |
28.txt | AC | 71 ms | 16512 KB |
29.txt | AC | 64 ms | 16768 KB |
30.txt | AC | 76 ms | 16768 KB |
31.txt | AC | 52 ms | 16768 KB |
32.txt | AC | 73 ms | 16768 KB |
33.txt | AC | 81 ms | 17152 KB |
34.txt | AC | 95 ms | 17152 KB |
35.txt | AC | 60 ms | 16000 KB |
36.txt | AC | 76 ms | 16512 KB |
37.txt | AC | 63 ms | 16768 KB |
38.txt | AC | 62 ms | 16768 KB |
39.txt | AC | 52 ms | 16768 KB |
40.txt | AC | 61 ms | 16768 KB |
41.txt | AC | 21 ms | 10496 KB |
42.txt | AC | 28 ms | 12416 KB |
sample01.txt | AC | 4 ms | 9728 KB |
sample02.txt | AC | 4 ms | 9728 KB |
sample03.txt | AC | 4 ms | 9728 KB |
sample04.txt | AC | 4 ms | 9728 KB |
sample05.txt | AC | 4 ms | 9728 KB |