Submission #688261

#	Time	Username	Problem	Language	Result	Execution time	Memory
688261		saayan007	Lost in the cycle (IOI19_cycle)	C++17	0 / 100	0 ms	208 KiB

cycle

#include "cycle.h"

#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using pi = pair<int, int>;
using pl = pair<long long, long long>;
using vi = vector<int>;
using vl = vector<long long>;
using vpi = vector<pair<int, int>>;
using vpl = vector<pair<long long, long long>>;

#define fur(i, a, b) for(ll i = a; i <= (ll)b; ++i)
#define ruf(i, a, b) for(ll i = a; i >= (ll)b; --i)
#define fr first 
#define sc second
#define mp make_pair
#define pb emplace_back
#define nl "\n"
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()

void escape(int n) {
    ll lo = 0;
    ll hi = n;
    ll cur = 0;
    ll x = 0;
    while(lo + 1 != hi) {
        ll mid = (lo + hi) / 2;
        ll y = mid - n/2;
        if(y < 0)
            y += n;

        x = y - cur;
        if(x < 0)
            x += n;

        // cout << cur << ' ' << lo << ' ' << mid << ' ' << hi << ' ' << y << ' ' << x << nl;

        if(jump(x)) {
            lo = mid;
        } else {
            hi = mid;
        }
        (cur += x) %= n;
    }
    ll mid = lo;
    ll y = mid - n/2;
    if(y < 0)
        y += n;

    x = y - cur;
    if(x < 0)
        x += n;
    jump(x);
    jump(1);
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 33
• Subtask 3: 0 / 56