Submission #398799

#TimeUsernameProblemLanguageResultExecution timeMemory
398799faresbasbsCop and Robber (BOI14_coprobber)C++14
0 / 100
1 ms200 KiB
#include <bits/stdc++.h> #include "coprobber.h" using namespace std; int n,curr,h[501],out[501],in[501]; vector<int> graph[501]; bool bad,seen[501]; void dfs(int curr , int par , int hi){ h[curr] = hi; for(auto i : graph[curr]){ if(i == par){ continue; } if(!h[i]){ dfs(i,curr,hi+1); continue; } if(h[i] < h[curr]){ out[curr] += 1 , in[i] += 1; if(abs(h[i]-h[curr]) > 2){ bad = 1; } continue; } } for(auto i : graph[curr]){ if(h[i] < h[curr]){ continue; } if(out[i] && out[curr]){ bad = 1; } } } int start(int N , bool grid[MAX_N][MAX_N]){ return -1; // n = N; // for(int i = 0 ; i < n ; i += 1){ // for(int j = 0 ; j < n ; j += 1){ // if(grid[i][j]){ // graph[i].push_back(j); // } // } // } // dfs(0,0,1); // if(bad){ // return -1; // } // return 0; } bool fnd(int pos , int tar){ seen[pos] = 1; if(pos == tar){ return true; } for(auto i : graph[pos]){ if(!seen[i] && fnd(i,tar)){ return true; } } return false; } int nextMove(int r){ memset(seen,0,sizeof seen); seen[curr] = 1; for(int i : graph[curr]){ if(fnd(i,r)){ return curr = i; } } }

Compilation message (stderr)

coprobber.cpp: In function 'int nextMove(int)':
coprobber.cpp:74:1: warning: control reaches end of non-void function [-Wreturn-type]
   74 | }
      | ^
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