Submission #899664


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int R,C;
int N;
struct edge {
  int to,a;
};
vector<edge> G[200005];
int V[200005];
bool used[200005];

bool dfs(int id){
  used[id] = true;
  for( edge e : G[id] ){
    if( used[e.to] ) {
      if( e.a != V[id] + V[e.to] ) return false;
    } else {
      V[e.to] = e.a - V[id];
      if( !dfs( e.to ) ) return false;      
    }
  }
  return true;
}

bool check1(){
  for(int i=0;i<R+C;i++){
    if( !used[i] )
      if( !dfs( i ) )  return false;    
  }
  return true;
}

bool check2(){
  for( int i=0;i<R+C;i++ ){
    if( V[i] < 0 ) return false;
  }
  return true;
}

int main(){
  cin >> R >> C >> N;

  for(int i=0;i<N;i++){
    int r,c,a; cin >> r >> c >> a; --r; --c;
    G[r].push_back( (edge){ R+c,a } );
    G[R+c].push_back( (edge){ r,a } );    
  }

  if( check1() && check2() )
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
  
}

Submission Info

Submission Time
Task D - Grid and Integers
User sate3saku3
Language C++14 (GCC 5.4.1)
Score 0
Code Size 958 Byte
Status WA
Exec Time 155 ms
Memory 12160 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 800
Status
AC × 5
AC × 48
WA × 21
Set Name Test Cases
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 7 ms 4992 KB
0_01.txt AC 7 ms 4992 KB
0_02.txt AC 7 ms 4992 KB
0_03.txt AC 7 ms 4992 KB
0_04.txt AC 7 ms 4992 KB
1_00.txt AC 9 ms 5120 KB
1_01.txt AC 9 ms 5120 KB
1_02.txt AC 9 ms 5120 KB
1_03.txt AC 8 ms 5120 KB
1_04.txt AC 9 ms 5120 KB
1_05.txt AC 7 ms 4992 KB
1_06.txt AC 124 ms 11776 KB
1_07.txt AC 155 ms 11776 KB
1_08.txt AC 125 ms 10112 KB
1_09.txt AC 120 ms 10112 KB
1_10.txt AC 147 ms 9088 KB
1_11.txt AC 145 ms 9088 KB
1_12.txt AC 152 ms 12160 KB
1_13.txt AC 150 ms 12160 KB
1_14.txt AC 152 ms 12160 KB
1_15.txt AC 155 ms 12160 KB
1_16.txt AC 123 ms 11008 KB
1_17.txt AC 154 ms 12160 KB
1_18.txt AC 145 ms 11648 KB
1_19.txt AC 137 ms 11648 KB
1_20.txt AC 91 ms 7936 KB
1_21.txt WA 44 ms 6784 KB
1_22.txt WA 13 ms 5504 KB
1_23.txt WA 90 ms 8448 KB
1_24.txt AC 111 ms 8576 KB
1_25.txt AC 88 ms 7936 KB
1_26.txt WA 15 ms 5376 KB
1_27.txt WA 22 ms 6016 KB
1_28.txt AC 140 ms 9728 KB
1_29.txt WA 50 ms 6912 KB
1_30.txt AC 134 ms 9472 KB
1_31.txt WA 57 ms 7680 KB
1_32.txt AC 111 ms 8192 KB
1_33.txt AC 133 ms 9472 KB
1_34.txt WA 23 ms 6016 KB
1_35.txt WA 117 ms 7680 KB
1_36.txt WA 26 ms 6016 KB
1_37.txt AC 58 ms 6784 KB
1_38.txt WA 105 ms 8704 KB
1_39.txt WA 37 ms 6656 KB
1_40.txt WA 100 ms 8704 KB
1_41.txt WA 53 ms 7552 KB
1_42.txt AC 114 ms 8192 KB
1_43.txt AC 93 ms 8320 KB
1_44.txt AC 117 ms 8704 KB
1_45.txt AC 39 ms 6272 KB
1_46.txt AC 130 ms 9344 KB
1_47.txt WA 48 ms 6656 KB
1_48.txt AC 45 ms 6400 KB
1_49.txt WA 20 ms 5760 KB
1_50.txt AC 78 ms 7552 KB
1_51.txt AC 128 ms 9344 KB
1_52.txt WA 17 ms 6016 KB
1_53.txt WA 27 ms 6400 KB
1_54.txt WA 45 ms 6656 KB
1_55.txt WA 58 ms 6656 KB
1_56.txt AC 92 ms 8192 KB
1_57.txt AC 135 ms 9216 KB
1_58.txt AC 117 ms 8832 KB
1_59.txt WA 14 ms 5760 KB
1_60.txt AC 7 ms 4992 KB
1_61.txt AC 7 ms 4992 KB
1_62.txt AC 7 ms 4992 KB
1_63.txt AC 7 ms 4992 KB