Submission #642065

#	Time	Username	Problem	Language	Result	Execution time	Memory
642065		piOOE	The Big Prize (IOI17_prize)	C++17	20 / 100	74 ms	336 KiB

prize

#include <bits/stdc++.h>
#include "prize.h"

using namespace std;
using ll = long long;

int find_best(int n) {
    int i = 0;
    int logn = __lg(n) + 2;
    for (; i < n;) {
        auto a = ask(i);
        if (a[0] == 0 && a[1] == 0) {
            return i;
        } else {
            for (int j = logn - 1; j > -1; --j) {
                if (i + (1 << j) < n && ask(i + (1 << j)) == a) {
                    i += 1 << j;
                }
            }
            ++i;
        }
    }
    assert(false);
}

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