Submission #985339

#	Time	Username	Problem	Language	Result	Execution time	Memory
985339		user736482	Cave (IOI13_cave)	C++17	0 / 100	39 ms	532 KiB

cave

#include<bits/stdc++.h>
#include<cave.h>
using namespace std;
int result[5002],match[5002],sent[5002];
bool iflastopen,fixed_[5002];
int N;
void change(int a, int b, bool c){
    for(int i=a;i<=b;i++){
        if(!fixed_[i])
            sent[i]= c;
    }
}
 
void exploreCave(int n){
    N = n;
    for(int j=0;j<n;j++){
        change(0,n-1,0);
        int p=tryCombination(sent);
        if(!p==j)
            iflastopen=0;
        else
            iflastopen=1;
        int pocz=0;
        int kon=n-1;
        while(pocz!=kon){
            int sr=(pocz+kon)/2;
            change(pocz,sr,iflastopen);
            change(sr+1,kon,!iflastopen);
            int ak=tryCombination(sent);
            if(!p==j)
            {
                kon=sr;
            }
            else{
                pocz=sr+1;
            }
        }
        sent[pocz] = iflastopen;
        match[j]=pocz;
        fixed_[pocz]=1;
    }
    answer(sent,match);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:19:14: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses]
   19 |         if(!p==j)
      |              ^~
cave.cpp:19:12: note: add parentheses around left hand side expression to silence this warning
   19 |         if(!p==j)
      |            ^~
      |            ( )
cave.cpp:30:18: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses]
   30 |             if(!p==j)
      |                  ^~
cave.cpp:30:16: note: add parentheses around left hand side expression to silence this warning
   30 |             if(!p==j)
      |                ^~
      |                ( )
cave.cpp:29:17: warning: unused variable 'ak' [-Wunused-variable]
   29 |             int ak=tryCombination(sent);
      |                 ^~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24