oj.uz

Submission #68375

# Submission time Handle Problem Language Result Execution time Memory
68375 2018-08-17T01:31:55 Z IvanC Snake Escaping (JOI18_snake_escaping) C++14
5 / 100
 327 ms 66560 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXL = 15;
const int MAXN = (1 << 13) + 3;
const int MAXV = 1594326; 

char entrada[MAXL];
int pot2[MAXL],pot3[MAXL];
int tab[MAXV],valor[MAXN];
int L,Q;

void brute(int pos,int base3,int base2,int first_2){

	if(pos == L){
		if(first_2 == -1){
			tab[base3] = valor[base2];
		}
		else{
			tab[base3] = tab[base3 - pot3[first_2]] + tab[base3 - 2*pot3[first_2]]; 
		}
		return;
	}

	brute(pos + 1, base3, base2, first_2 );
	brute(pos + 1, base3 + pot3[pos], base2 + pot2[pos], first_2 );
	brute(pos + 1, base3 + 2*pot3[pos], base2, (first_2 != -1) ? (first_2) : (pos) );

}

int main(){

	scanf("%d %d",&L,&Q);
	assert(L <= 13);

	for(int i = 0;i<(1 << L);i++){
		char c;
		scanf(" %c",&c);
		valor[i] = (c - '0');
	}

	pot3[0] = pot2[0] = 1;
	for(int i = 1;i<L;i++){
		pot3[i] = pot3[i-1]*3;
		pot2[i] = pot2[i-1]*2;
	}

	brute(0,0,0,-1);

	for(int q = 0;q<Q;q++){

		int numero = 0;
		scanf("%s",entrada);

		for(int i = 0,j = L - 1;i<L;i++,j--){
			int davez = entrada[i] - '0';
			if(entrada[i] == '?') davez = 2;
			numero += pot3[j]*davez;
		}

		printf("%d\n",tab[numero]);

	}

	return 0;

}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:33:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&L,&Q);
  ~~~~~^~~~~~~~~~~~~~~
snake_escaping.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c",&c);
   ~~~~~^~~~~~~~~~
snake_escaping.cpp:53:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",entrada);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 636 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 4 ms 1020 KB Output is correct
6 Correct 4 ms 1020 KB Output is correct
7 Correct 4 ms 1020 KB Output is correct
8 Correct 4 ms 1020 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1156 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 636 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 4 ms 1020 KB Output is correct
6 Correct 4 ms 1020 KB Output is correct
7 Correct 4 ms 1020 KB Output is correct
8 Correct 4 ms 1020 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1156 KB Output is correct
11 Correct 321 ms 15752 KB Output is correct
12 Correct 318 ms 26396 KB Output is correct
13 Correct 327 ms 36308 KB Output is correct
14 Correct 265 ms 47036 KB Output is correct
15 Correct 282 ms 58964 KB Output is correct
16 Runtime error 294 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
17 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 636 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 4 ms 1020 KB Output is correct
6 Correct 4 ms 1020 KB Output is correct
7 Correct 4 ms 1020 KB Output is correct
8 Correct 4 ms 1020 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1156 KB Output is correct
11 Correct 321 ms 15752 KB Output is correct
12 Correct 318 ms 26396 KB Output is correct
13 Correct 327 ms 36308 KB Output is correct
14 Correct 265 ms 47036 KB Output is correct
15 Correct 282 ms 58964 KB Output is correct
16 Runtime error 294 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
17 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 636 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 4 ms 1020 KB Output is correct
6 Correct 4 ms 1020 KB Output is correct
7 Correct 4 ms 1020 KB Output is correct
8 Correct 4 ms 1020 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1156 KB Output is correct
11 Runtime error 4 ms 66560 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 4 ms 636 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 1012 KB Output is correct
5 Correct 4 ms 1020 KB Output is correct
6 Correct 4 ms 1020 KB Output is correct
7 Correct 4 ms 1020 KB Output is correct
8 Correct 4 ms 1020 KB Output is correct
9 Correct 5 ms 1020 KB Output is correct
10 Correct 4 ms 1156 KB Output is correct
11 Correct 321 ms 15752 KB Output is correct
12 Correct 318 ms 26396 KB Output is correct
13 Correct 327 ms 36308 KB Output is correct
14 Correct 265 ms 47036 KB Output is correct
15 Correct 282 ms 58964 KB Output is correct
16 Runtime error 294 ms 66560 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
17 Halted 0 ms 0 KB -