Submission #305861

#	Time	Username	Problem	Language	Result	Execution time	Memory
305861		juggernaut	동굴 (IOI13_cave)	C++14	0 / 100	450 ms	512 KiB

cave

#include"cave.h"
#include<bits/stdc++.h>
using namespace std;
int pos[5000],n,tmp[5000];
bool check(int val,int l,int r){
    for(int i=0;i<n;i++)tmp[i]=(pos[i]||(l<=i&&i<=r))?1:0;
    int ret=tryCombination(tmp);
    if(ret==-1)ret=n;
    return ret>val;
}
void exploreCave(int N){
    int i=0,l,r,m;
    n=N;
    for(;i<n;i++){
        l=0,r=n-1;
        while(l<r){
            int m=(l+r)>>1;
            if(check(i,l,m))r=m;
            else l=m+1;
        }
        pos[i]=l;
    }
    memset(tmp,0,sizeof(tmp));
    answer(tmp,pos);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:12:17: warning: unused variable 'm' [-Wunused-variable]
   12 |     int i=0,l,r,m;
      |                 ^

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