Submission #717273

#	Time	Username	Problem	Language	Result	Execution time	Memory
717273		Juan	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

    #include<bits/stdc++.h>
    #include "cave.h"
    using namespace std;
     
     
    void exploreCave(int N){
    	vector<int> unprocessed;
    	for(int i = 0; i < N; i++) unprocessed.push_back(i);
    	int vask[N]={}, S[N]={};
    	int D[N]={};
    	for(int i = 0; i < N; i++){
    		for(int x : unprocessed) vask[x] = 0;
    		S[i] = 1;
    		if(tryCombination(vask)!=i){
    			for(int x : unprocessed) vask[x] = 1;
    			S[i] = 0;
    		}
     
    		int pos = -1;
    		int l = 0, r = unprocessed.size()-1;
    		while(l<=r){
    			int m = (l+r)>>1;
    			for(int j = 0; j <= m; j++) vask[unprocessed[j]] = 1-vask[unprocessed[j]];
    			int ret = tryCombination(vask);
    			if(ret==i) pos = m, l = m+1;
    			else r = m-1;
     
    			for(int j = 0; j <= m; j++) vask[unprocessed[j]] = 1-vask[unprocessed[j]];
    		}
     
    		D[i] = unprocessed[pos+1];
          	askv[D[i]] = S[i];
    		unprocessed.erase(unprocessed.begin()+pos+1);
    	}
     
    	answer(S, D);
    }

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:32:12: error: 'askv' was not declared in this scope
   32 |            askv[D[i]] = S[i];
      |            ^~~~