Submission #145281

#	Time	Username	Problem	Language	Result	Execution time	Memory
145281		beso123	Lost in the cycle (IOI19_cycle)	C++14	100 / 100	2 ms	380 KiB

cycle

#include<bits/stdc++.h>
#include "cycle.h"
using namespace std;
/*bool jump(int x) {
 
	p = (p + x) % n;
	 cout<<p<<endl;
	return (n - p) % n <= n / 2;
}*/
void escape(int n){
 int l=0,r=0;
 if(jump(0)){
    l=0;
    r=n/2;
 }
 else{
  l=n/2+1;
  r=n-1;
 }
 int h=0;
 while(r-l>1){
    int mid=((l+r)/2)+h;
    h=n-(l+r)/2;
  mid=mid%n;
    if(jump(mid))
        l=(l+r)/2;
    else
        r=(l+r)/2;
 }
if(jump((h+r)%n))
return;
h=n-r;
jump((h+l)%n);
return;
}

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