제출 #569860

#제출 시각아이디문제언어결과실행 시간메모리
569860Aurora2005Lost in the cycle (IOI19_cycle)C++14
0 / 100
1 ms208 KiB
#include<bits/stdc++.h>
#include"cycle.h"
using namespace std;

void escape(int N){
  int l=0,r=N,p=0;
  while(r-l != 1 && (l != N-1 || r != 0)){
    int L = l;
    int R = r;
    if(L > R) R += N;
    int M = (L+R)/2;
    int d = N-N/2-M;
    if(d < 0) d += 5*N;
    d %= N;
    p += d;
    p %= N;
    if(jump(d)){
      l = M;
    }
    else{
      r = M;
    }
  }
  int now = l+p;
  now %= N;
  if(now != 0) jump(N-now);
}
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