Submission #985335

#	Time	Username	Problem	Language	Result	Execution time	Memory
985335		user736482	Cave (IOI13_cave)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

cave

#include<bits/stdc++.h>
#include<cave.h>
using namespace std;
int match[5000],sent[5000];
bool openstate,fixed_[5000];
int ak;
void change(int a, int b, int c){
    for(int i=a;i<=b;i++){
        if(!fixed_[i])
            sent[i]= c;
    }
}

void exploreCave(int n){
    for(int i=0;i<n;i++){
        change(0,4999,1);
        ak = tryCombination(sent);
        if(ak!=i){
            openstate=1;
        }
        else{
            openstate=0;
        }
        int pocz=0;
        int kon=0;
        while(pocz<kon){
            int sr=(pocz+kon)/2;
            change(pocz,sr,openstate);
            change(sr+1,kon,!openstate);
            ak=tryCombination(sent);
            if(ak > j || ak==-1)
            {
                kon=sr;
            }
            else{
                pocz=sr+1;
            }
        }
        sent[pocz]=openstate;
        match[j]=pocz;
        fixed_[pocz]=1;
    }
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:31:21: error: 'j' was not declared in this scope
   31 |             if(ak > j || ak==-1)
      |                     ^
cave.cpp:40:15: error: 'j' was not declared in this scope
   40 |         match[j]=pocz;
      |               ^