Submission #1305323

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305323		kaloyan	커다란 상품 (IOI17_prize)	C++20	20 / 100	1 ms	400 KiB

prize

#include "prize.h"
#include <cassert>

int f(int mid)
{
    auto v = ask(mid);
    return v[0] - v[1];
}

int find_best(int n)
{
	int l = -1, r = n;
    while(l + 1 < r)
    {
        int m = (l + r) / 2;

        int res = f(m);

        if(res == 0)
        {
            return m;
        }

        if(res < 0)
        {
            l = m;
        }
        else
        {
            r = m;
        } 
    }

    assert(l != -1);
    return l;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80