Submission #697445

#	Time	Username	Problem	Language	Result	Execution time	Memory
697445		Deepesson	Cop and Robber (BOI14_coprobber)	C++17	16 / 100	38 ms	1752 KiB

coprobber

#include <bits/stdc++.h>

using namespace std;

#define MAX_N 500

// modify the following functions
// you can define global variables and functions
std::vector<int> con[MAX_N];
int start(int N, bool A[MAX_N][MAX_N]) {
    int count=0;
    for(int i=0;i!=N;++i){
        for(int j=0;j!=N;++j){
            if(i==j)continue;
            if(A[i][j]){
                con[i].push_back(j);
                ++count;
            }
        }
    }
    assert(count==2*(N-1));
    return 0;
}
int obj=0;
int dfs(int pos,int prev=-1){
    if(pos==obj){
        return pos;
    }
    for(auto&x:con[pos]){
        if(x==prev)continue;
        if(dfs(x,pos)){
            return x;
        }
    }
    return 0;
}
int atual=0,previi=-1;
int nextMove(int R) {
    obj=R;
    int strat = dfs(atual);
    previi=atual;
    return atual=strat;
}

• Subtask 1: 16 / 16
• Subtask 2: 0 / 14
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40