Submission #976015

#	Time	Username	Problem	Language	Result	Execution time	Memory
976015		SiliconSquared	Lost in the cycle (IOI19_cycle)	C++14	100 / 100	1 ms	596 KiB

cycle

#include "cycle.h"

void escape(int n) {
	long long a,b,c,d;
	if (!jump(0)){
		jump(n/2);
	}
	a=0;
	b=n/2;
	c=0;
	while (b-a>1){
		d=(a+b)/2-c;
		if (d<0){d+=n;}
		c=(a+b)/2;
		if (jump(d)){
			a=c;
		}else{
			b=c-1;
		}
	}
	if (a==b){
		d=a-c;
		if (d<0){d+=n;}
		jump(d);
	}else{
		d=b-c;
		if (d<0){d+=n;}
		if (!jump(d)){
			jump(n-1);
		}
	}
}

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