Submission #73518

#	Time	Username	Problem	Language	Result	Execution time	Memory
73518		ics0503	기억 압축 (JOI15_memory)	C++17	100 / 100	3224 ms	276952 KiB

memory

#include "Memory_lib.h"
#include<stdio.h>
int Memory(int N, int M) {
	if (M > 3000000)
		return -2;
	if (M < 10000) {
		int now = M / 100 + 1;
		int dep = M % 100;
		if (now > N)return -2;
		char want = Get(now);
		dep += (want == '[' || want == '<') * 2 - 1;
		if (dep < 0 || (now == N && dep != 0))return -2;
		if (now == N)
			return 10000;
		return now * 100 + dep;
	}
	if (M < 20000) {
		int m = M - 10000;
		int now = M-10000 + 1;
		if (now > N)return -2;
		char want = Get(now);
		if (want == '[' || want == '<') {
			return 20000 + (want == '[')*1000000+(now*10000)+(now*100)+1;//go check
		}
		if (now == N)return -1;
		return 10000 + now;
	}
	int m = M - 20000;
	int ck = m / 1000000;
	int nxt = m / 10000 % 100;
	int now = m / 100 % 100;
	int dep = m % 100;
	if (now + 1 > N)return -2;
	char get = Get(now + 1);
	if (get == '[' || get == '<') {
		dep++;
		return 20000 + ck * 1000000 + nxt * 10000 + (now + 1) * 100 + dep;
	}
	dep--;
	if (dep == 0) {
		if (!ck) {
			if (get == ']')return -2;
			return 10000 + nxt;
		}
		else{
			if (get == '>')return -2;
			return 10000 + nxt;
		}
	}
	return 20000 + ck * 1000000 + nxt * 10000 + (now + 1) * 100 + dep;
}

Compilation message (stderr)

memory.cpp: In function 'int Memory(int, int)':
memory.cpp:18:7: warning: unused variable 'm' [-Wunused-variable]
   int m = M - 10000;
       ^

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