Submission #1698367
Source Code Expand
#include <bits/stdc++.h> using namespace std; using VI = vector<int>; using VVI = vector<VI>; using PII = pair<int, int>; using LL = long long; using VL = vector<LL>; using VVL = vector<VL>; using PLL = pair<LL, LL>; using VS = vector<string>; #define ALL(a) begin((a)),end((a)) #define RALL(a) (a).rbegin(), (a).rend() #define PB push_back #define EB emplace_back #define MP make_pair #define SZ(a) int((a).size()) #define SORT(c) sort(ALL((c))) #define RSORT(c) sort(RALL((c))) #define UNIQ(c) (c).erase(unique(ALL((c))), end((c))) #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define REP(i,n) FOR(i,0,n) #define FF first #define SS second template<class S, class T> istream& operator>>(istream& is, pair<S,T>& p){ return is >> p.FF >> p.SS; } template<class S, class T> ostream& operator<<(ostream& os, const pair<S,T>& p){ return os << p.FF << " " << p.SS; } template<class T> void maxi(T& x, T y){ if(x < y) x = y; } template<class T> void mini(T& x, T y){ if(x > y) x = y; } const double EPS = 1e-10; const double PI = acos(-1.0); const LL MOD = 1e9+7; const LL INF = 1e15; int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int H, W, N; cin >> H >> W >> N; vector<vector<PLL>> G(H+W); REP(i,N){ int y, x, a; cin >> y >> x >> a; --x; --y; G[y].EB(H+x, a); G[H+x].EB(y, a); } VL dist(H+W, INF); function<bool(int,LL&,LL&)> dfs = [&](int u, LL& mx, LL& my){ if(u < H) mini(my, dist[u]); else mini(mx, dist[u]); for(auto& e: G[u]){ if(dist[e.FF] == INF){ dist[e.FF] = e.SS - dist[u]; if(!dfs(e.FF, mx, my)) return false; } else{ if(dist[e.FF] + dist[u] != e.SS) return false; } } return true; }; REP(i,H+W){ if(dist[i] != INF) continue; dist[i] = 0; LL mx = INF, my = INF; if(!dfs(i, mx, my) || mx+my < 0){ cout << "No" << endl; return 0; } } cout << "Yes" << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Grid and Integers |
User | okaduki |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 1982 Byte |
Status | AC |
Exec Time | 79 ms |
Memory | 21120 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
|
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Set Name | Test Cases |
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Sample | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 1 ms | 256 KB |
0_01.txt | AC | 1 ms | 256 KB |
0_02.txt | AC | 1 ms | 256 KB |
0_03.txt | AC | 1 ms | 256 KB |
0_04.txt | AC | 1 ms | 256 KB |
1_00.txt | AC | 5 ms | 6528 KB |
1_01.txt | AC | 5 ms | 6528 KB |
1_02.txt | AC | 5 ms | 6528 KB |
1_03.txt | AC | 4 ms | 6528 KB |
1_04.txt | AC | 5 ms | 6528 KB |
1_05.txt | AC | 3 ms | 6528 KB |
1_06.txt | AC | 48 ms | 12800 KB |
1_07.txt | AC | 54 ms | 12800 KB |
1_08.txt | AC | 61 ms | 12032 KB |
1_09.txt | AC | 46 ms | 11904 KB |
1_10.txt | AC | 63 ms | 11776 KB |
1_11.txt | AC | 53 ms | 11776 KB |
1_12.txt | AC | 67 ms | 21120 KB |
1_13.txt | AC | 61 ms | 21120 KB |
1_14.txt | AC | 64 ms | 21120 KB |
1_15.txt | AC | 65 ms | 21120 KB |
1_16.txt | AC | 71 ms | 17664 KB |
1_17.txt | AC | 67 ms | 20736 KB |
1_18.txt | AC | 79 ms | 19584 KB |
1_19.txt | AC | 73 ms | 19840 KB |
1_20.txt | AC | 33 ms | 6912 KB |
1_21.txt | AC | 18 ms | 4736 KB |
1_22.txt | AC | 4 ms | 2560 KB |
1_23.txt | AC | 33 ms | 8448 KB |
1_24.txt | AC | 40 ms | 8448 KB |
1_25.txt | AC | 32 ms | 6912 KB |
1_26.txt | AC | 4 ms | 1280 KB |
1_27.txt | AC | 8 ms | 4224 KB |
1_28.txt | AC | 55 ms | 11136 KB |
1_29.txt | AC | 19 ms | 5376 KB |
1_30.txt | AC | 49 ms | 10496 KB |
1_31.txt | AC | 21 ms | 7680 KB |
1_32.txt | AC | 40 ms | 7552 KB |
1_33.txt | AC | 50 ms | 10496 KB |
1_34.txt | AC | 8 ms | 3584 KB |
1_35.txt | AC | 38 ms | 5632 KB |
1_36.txt | AC | 10 ms | 3968 KB |
1_37.txt | AC | 20 ms | 4480 KB |
1_38.txt | AC | 37 ms | 8960 KB |
1_39.txt | AC | 14 ms | 5632 KB |
1_40.txt | AC | 45 ms | 8448 KB |
1_41.txt | AC | 21 ms | 7808 KB |
1_42.txt | AC | 40 ms | 7168 KB |
1_43.txt | AC | 32 ms | 8064 KB |
1_44.txt | AC | 40 ms | 8832 KB |
1_45.txt | AC | 12 ms | 3968 KB |
1_46.txt | AC | 47 ms | 10112 KB |
1_47.txt | AC | 17 ms | 4864 KB |
1_48.txt | AC | 14 ms | 3456 KB |
1_49.txt | AC | 7 ms | 3200 KB |
1_50.txt | AC | 28 ms | 6272 KB |
1_51.txt | AC | 50 ms | 10112 KB |
1_52.txt | AC | 7 ms | 5248 KB |
1_53.txt | AC | 11 ms | 5248 KB |
1_54.txt | AC | 18 ms | 4736 KB |
1_55.txt | AC | 20 ms | 4096 KB |
1_56.txt | AC | 34 ms | 7680 KB |
1_57.txt | AC | 51 ms | 9600 KB |
1_58.txt | AC | 43 ms | 9216 KB |
1_59.txt | AC | 6 ms | 3968 KB |
1_60.txt | AC | 1 ms | 256 KB |
1_61.txt | AC | 1 ms | 256 KB |
1_62.txt | AC | 1 ms | 256 KB |
1_63.txt | AC | 1 ms | 256 KB |