| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 371198 | 2021-02-26T04:45:04 Z | evn | Lost in the cycle (IOI19_cycle) | C++14 | 0 ms | 0 KB |
#include <bits/stdc++.h>
//#include "cycle.h"
using namespace std;
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define sz(a) a.size()
typedef long long ll;
typedef pair<int, int> pii;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template<class T> using oset=tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
int pos = 2;
int amt =6;
bool jump(int steps){
//cout << steps << " ";
pos += steps;
pos %= amt;
//cout << pos << '\n';
if(pos == 0)return true;
if(pos + amt/2 >= amt)return true;
return false;
}
int pre = 0;
void escape(int n){
int lo = 0;
int hi = n-1;
while(lo < hi){
int mid = (lo+hi+1)/2;
if(jump((mid+pre)%n)){
lo = mid;
pre = n-mid;
//jump(n-mid);
}
else{
hi = mid-1;
pre = n-mid;
//jump(n-mid);
}
}
jump((pre+lo)%n);
}
int main(){
escape(6);
}