Submission #870180

#	Time	Username	Problem	Language	Result	Execution time	Memory
870180		AtabayRajabli	Cave (IOI13_cave)	C++17	0 / 100	44 ms	348 KiB

cave

#include "cave.h"
 
void exploreCave(int n) {
    int q = 0;
    int a[n], b[n], ans[n], d[n];
    for(int i = 0; i<n; i++)
    {
        a[i] = 0;
        b[i] = 0;
    }
    
    int l, r, mid;
    for(int i = 0; i<n; i++)
    {
        l = 0, r = n-1;
        int q = tryCombination(a);
        while(l <= r)
        {
            mid = (l + r + 1) / 2;

            for(int i = l; i<mid; i++)b[i] = a[i];
            for(int i = mid; i<=r; i++)b[i] = !a[i];
            int k = tryCombination(b);

            if((q == i && k > q) || (q > i && k == i))
            {
                l = mid;
            }
            else
            {
                r = mid - 1;    
            }
        }
        d[mid] = i;
        if(q > i)ans[i] = a[i];
        else ans[i] = !a[i];
    }
    
    answer(ans, d);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:4:9: warning: unused variable 'q' [-Wunused-variable]
    4 |     int q = 0;
      |         ^

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