Submission #592526

#	Time	Username	Problem	Language	Result	Execution time	Memory
592526		tqbfjotld	기억 압축 (JOI15_memory)	C++14	40 / 100	2480 ms	284084 KiB

memory

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

int Memory(int N, int M) {
	if (N>30){			
		int loc = M%(N+1);
		int rem = M/(N+1);
		if (loc==N) return rem==0?-1:-2;
		int res = Get(loc+1);
		if (res=='>'){
			if (rem==0) return -2;
			rem--;
		}
		else{
			rem++;
		}
		if ((rem*(N+1)+loc+1)>=(1<<22)) return -2;
		return rem*(N+1)+loc+1;
	}
	int loc = M%(N+1);
	int rem = M/(N+1);
	if (loc==0) rem = 1<<15;
	int rems = 15-__builtin_ctz(rem);
	if (rems<0) return -2;
	int remm = rem>>(15-rems+1);
	if (loc==N){
		return rems==0?-1:-2;
	}
	int res = Get(loc+1);
	//printf("loc %d rems = %d remm = %x\n",loc,rems,remm);
	if (res==']' || res=='>'){
		if (rems==0) return -2;
		if ((remm&1)==(res==']')){
			rems--;
			remm>>=1;
		}
		else{
			return -2;
		}
	}
	else{
		if (rems==15){
			return -2;
		}
		rems++;
		remm<<=1;
		remm += (res=='[');
	}
	if ((((remm<<((15-rems)+1))+(1<<(15-rems)))*(N+1)+(loc+1))>=(1<<22))
		return -2;
	//printf("rems = %d, remm = %x\n",rems,remm);
	return ((remm<<((15-rems)+1))+(1<<(15-rems)))*(N+1)+(loc+1);
	
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 0 / 60