oj.uz

Submission #199195

# Submission time Handle Problem Language Result Execution time Memory
199195 2020-01-30T03:17:00 Z arnold518 None (JOI15_memory) C++14
0 / 100
 2721 ms 283968 KB 
#include "Memory_lib.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

int Memory(int N, int M)
{
	int i, j;

	if(N%2) return -2;

	int pos=(M&31)+1, sz=(M>>5)&15, mask=M>>9;
	if(sz>N/2) return -2;
	if(mask>=(1<<sz)) return -2;
	if(pos==N+1)
	{
		if(sz==0) return -1;
		return -2;
	}
	if(pos>N) return -2;

	char t=Get(pos);

	if(t=='<')
	{
		mask<<=1; sz++;
		if(sz>N/2) return -2;
	}
	else if(t=='[')
	{
		mask<<=1; sz++;
		mask|=1;
		if(sz>N/2) return -2;
	}
	else if(t=='>')
	{
		if(sz==0) return -2;
		if(mask&1==1) return -2;
		sz--; mask>>=1;
	}
	else if(t==']')
	{
		if(sz==0) return -2;
		if(mask&1==0) return -2;
		sz--; mask>>=1;
	}
	pos++;

	return (mask<<9)|(sz<<5)|(pos-1);
}

Compilation message

memory.cpp: In function 'int Memory(int, int)':
memory.cpp:41:12: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   if(mask&1==1) return -2;
           ~^~~
memory.cpp:47:12: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   if(mask&1==0) return -2;
           ~^~~
memory.cpp:11:6: warning: unused variable 'i' [-Wunused-variable]
  int i, j;
      ^
memory.cpp:11:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2721 ms 283776 KB Output is correct
2 Incorrect 2676 ms 283968 KB Wrong Answer [6]
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2721 ms 283776 KB Output is correct
2 Incorrect 2676 ms 283968 KB Wrong Answer [6]
3 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2721 ms 283776 KB Output is correct
2 Incorrect 2676 ms 283968 KB Wrong Answer [6]
3 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2721 ms 283776 KB Output is correct
2 Incorrect 2676 ms 283968 KB Wrong Answer [6]
3 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Wrong Answer [1]

Subtask #6
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 2721 ms 283776 KB Output is correct
2 Incorrect 2676 ms 283968 KB Wrong Answer [6]
3 Halted 0 ms 0 KB -