Submission #398895

#	Time	Username	Problem	Language	Result	Execution time	Memory
398895		almothana05	Cop and Robber (BOI14_coprobber)	C++14	0 / 100	180 ms	262148 KiB

coprobber

#include "coprobber.h"
#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;
int menge = 0 , jet = 0 , r = 0;
	int cmp = 0 ;
bool done = 0;
vector<vector<int> >num ;
vector<vector<bool> >  a;
vector<int >vis(500+10 , 0), comp;
int dfs(int x , int R){
	cmp = 0;
	if(x == R){
		r = 1;
	}
	vis[x] = 1;
	comp.push_back(x);
	for(int i = 0 ; i < num[x].size() ; i++){
		if(vis[i] == 0 ){
			cmp++;
			if( dfs(x , R) == -1){
				return -1;
			}
		}
	}
	if(cmp == 0 && r == 1 ){
		return -1;
	}
	comp.pop_back();
	vis[x] = 0;
}
int start(int N, bool A[MAX_N][MAX_N])
{
	for(int i =  0 ;i < N ; i++){
		a.push_back(vector<bool>());
		num.push_back(vector<int>());
		for(int  j = 0 ; j < N  ; j++){
			a[i].push_back(A[i][j]);
			if(a[i][j] == 1){
				num[i].push_back(j);
			}
		}
	}
	menge = N;
    return 0;
}

int nextMove(int R)
{
	if(R == jet){
		return jet;
	}
	if(num[jet][R] == 1){
	    return R;
	    
	}
	else{
		if(done == 0){
			dfs(jet , R);
			reverse(comp.begin()  , comp.end());
			done = 1;
		}
		cmp = comp[comp.size() - 1];
		comp.pop_back();
		return cmp;
	}
	return jet;
}

Compilation message (stderr)

coprobber.cpp: In function 'int dfs(int, int)':
coprobber.cpp:20:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  for(int i = 0 ; i < num[x].size() ; i++){
      |                  ~~^~~~~~~~~~~~~~~
coprobber.cpp:32:9: warning: control reaches end of non-void function [-Wreturn-type]
   32 |  vis[x] = 0;

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