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Submission #120069

# Submission time Handle Problem Language Result Execution time Memory
120069 2019-06-23T07:30:20 Z tjd229 None (JOI15_memory) C++14
100 / 100
 2235 ms 276964 KB 
#include "Memory_lib.h"


int concat(int l,int r,int op,int mode) {
	return mode + (op << 2) + (r << 8) + (l << 15);
}
int Memory(int N, int M) {

	if (N & 1) return -2;
	int sq6 = 64;
	int sq7 = 128;
	int mode = M & 3; M >>= 2;
	int op = M & (sq6 - 1); M >>= 6;
	int r = M & (sq7 - 1); // i
	int l = M >> 7; //j
	//printf("%d,%d,%d,%d\n",l,r,op,mode);
	if (r == N)
		return op ? -2 : -1;

	if (l >= N) return -2;

	char c = Get(l + 1);
	if (l == r) {
		++l;
		if (c == ']' || c == '>') {
			if (--op < 0) return -2;
			return concat(l,++r,op,mode);
		}
		else {
			mode = (c == '[') + 1;
			op = 1;
			return concat(l, r, op, mode);
		}
	}
	else {
		switch (c) {
		case '<':case '[':
			++op;
			break;
		case '>':
			--op;
			if (op < 0) return -2;
			if (l > r && op == 0) {
				if (mode != 1) return -2;
				return concat(0, ++r, op, 0);
			}
			break;
		case ']':
			--op;
			if (op < 0) return -2;
			if (l > r && op == 0) {
				if (mode != 2) return -2;
				return concat(0, ++r, op, 0);
			}
			break;
		}
		++l;
	}
	//op>50 chk
	if (op > (N >> 1)) return -2;
	return concat(l,r,op,mode);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2043 ms 276612 KB Output is correct
2 Correct 1998 ms 276752 KB Output is correct
3 Correct 1989 ms 276776 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2043 ms 276612 KB Output is correct
2 Correct 1998 ms 276752 KB Output is correct
3 Correct 1989 ms 276776 KB Output is correct
4 Correct 2029 ms 276548 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2043 ms 276612 KB Output is correct
2 Correct 1998 ms 276752 KB Output is correct
3 Correct 1989 ms 276776 KB Output is correct
4 Correct 2029 ms 276548 KB Output is correct
5 Correct 2114 ms 276888 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2043 ms 276612 KB Output is correct
2 Correct 1998 ms 276752 KB Output is correct
3 Correct 1989 ms 276776 KB Output is correct
4 Correct 2029 ms 276548 KB Output is correct
5 Correct 2114 ms 276888 KB Output is correct
6 Correct 2062 ms 276964 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2235 ms 276720 KB Output is correct

Subtask #6
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 2043 ms 276612 KB Output is correct
2 Correct 1998 ms 276752 KB Output is correct
3 Correct 1989 ms 276776 KB Output is correct
4 Correct 2029 ms 276548 KB Output is correct
5 Correct 2114 ms 276888 KB Output is correct
6 Correct 2062 ms 276964 KB Output is correct
7 Correct 2235 ms 276720 KB Output is correct
8 Correct 1966 ms 276616 KB Output is correct
9 Correct 2150 ms 276568 KB Output is correct