Submission #522085

#	Time	Username	Problem	Language	Result	Execution time	Memory
522085		tabr	Lost in the cycle (IOI19_cycle)	C++17	100 / 100	1 ms	208 KiB

cycle

#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

#ifdef tabr
bool jump(int);
#else
#include "cycle.h"
#endif

void escape(int n) {
    if (n == 2) {
        jump(1);
        return;
    }
    if (!jump(0)) {
        jump(n / 2);
    }
    int now = 0;
    int low = 0;
    int high = n / 2 + 1;
    while (high - low > 1) {
        int mid = (high + low) >> 1;
        int x = (mid - now + n) % n;
        bool ok = jump(x);
        now += x;
        now %= n;
        if (ok) {
            low = mid;
        } else {
            high = mid;
        }
    }
    int x = (low - now + n) % n;
    jump(x);
}

#ifdef tabr
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    return 0;
}
#endif

• Subtask 1: 11 / 11
• Subtask 2: 33 / 33
• Subtask 3: 56 / 56