oj.uz

Submission #331794

# Submission time Handle Problem Language Result Execution time Memory
331794 2020-11-30T07:00:49 Z daniel920712 Snake Escaping (JOI18_snake_escaping) C++14
75 / 100
 2000 ms 23132 KB 
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <string.h>
#include <map>
#include <utility>
#include <algorithm>
#include <stack>
using namespace std;
char all[1148576];
char tt[25];
int con1[2][1100005];
int con2[2][1100005];
int ans=0;
int N;
void F(int x,int y,int z)
{
    if(x==N)
    {
        if(z%2==0) ans+=con1[N%2][y];
        else ans-=con1[N%2][y];
        return;
    }
    if(tt[x]=='1')
    {
        F(x+1,y+(1<<(N-x-1)),z);
        F(x+1,y,z+1);
    }
    else if(tt[x]=='0') F(x+1,y,z);
    else F(x+1,y+(1<<(N-x-1)),z);

}
void F2(int x,int y)
{
    if(x==N)
    {
        ans+=(all[y]-'0');
        return;
    }
    if(tt[x]=='?')
    {
        F2(x+1,y);
        F2(x+1,y+(1<<(N-x-1)));
    }
    else F2(x+1,y+(1<<(N-x-1))*(tt[x]-'0'));
}
void F3(int x,int y,int z)
{
    if(x==N)
    {
        if(z%2==0) ans+=con2[N%2][y];
        else ans-=con2[N%2][y];
        return;
    }
    if(tt[x]=='0')
    {
        F3(x+1,y+(1<<(N-x-1)),z+1);
        F3(x+1,y,z);
    }
    else if(tt[x]=='1') F3(x+1,y+(1<<(N-x-1)),z);
    else F3(x+1,y,z);

}
int main()
{
    //freopen("05-05.txt","rt",stdin);
    //freopen("tt.txt","w+t",stdout);
    int M,i,j,ok,a,b,c;
    scanf("%d %d",&N,&M);
    scanf("%s",all);
    for(i=0;i<(1<<N);i++) con2[0][i]=con1[0][i]=all[i]-'0';
    for(i=0;i<N;i++)
    {
        for(j=0;j<(1<<N);j++)
        {
            con1[1-i%2][j]=con1[i%2][j];
            con2[1-i%2][j]=con2[i%2][j];
            if(j&(1<<i)) con1[1-i%2][j]+=con1[i%2][j-(1<<i)];
            else con2[1-i%2][j]+=con2[i%2][j+(1<<i)];
        }
    }



    while(M--)
    {
        scanf("%s",tt);
        ans=0;
        a=0;
        b=0;
        c=0;
        for(i=0;i<N;i++)
        {
            if(tt[i]=='?') a++;
            else if(tt[i]=='1') b++;
            else c++;
        }
        if(b<=a&&b<=c) F(0,0,0);
        else if(a<=b&&a<=c) F2(0,0);
        else if(c<=b&&c<=a) F3(0,0,0);
        printf("%d\n",ans);

    }

	return 0;
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:69:15: warning: unused variable 'ok' [-Wunused-variable]
   69 |     int M,i,j,ok,a,b,c;
      |               ^~
snake_escaping.cpp:70:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   70 |     scanf("%d %d",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~
snake_escaping.cpp:71:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   71 |     scanf("%s",all);
      |     ~~~~~^~~~~~~~~~
snake_escaping.cpp:88:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   88 |         scanf("%s",tt);
      |         ~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 317 ms 4368 KB Output is correct
12 Correct 389 ms 4204 KB Output is correct
13 Correct 393 ms 3248 KB Output is correct
14 Correct 568 ms 3564 KB Output is correct
15 Correct 427 ms 4352 KB Output is correct
16 Correct 477 ms 3528 KB Output is correct
17 Correct 486 ms 3564 KB Output is correct
18 Correct 252 ms 5484 KB Output is correct
19 Correct 294 ms 2412 KB Output is correct
20 Correct 350 ms 4304 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 317 ms 4368 KB Output is correct
12 Correct 389 ms 4204 KB Output is correct
13 Correct 393 ms 3248 KB Output is correct
14 Correct 568 ms 3564 KB Output is correct
15 Correct 427 ms 4352 KB Output is correct
16 Correct 477 ms 3528 KB Output is correct
17 Correct 486 ms 3564 KB Output is correct
18 Correct 252 ms 5484 KB Output is correct
19 Correct 294 ms 2412 KB Output is correct
20 Correct 350 ms 4304 KB Output is correct
21 Correct 391 ms 4568 KB Output is correct
22 Correct 417 ms 4716 KB Output is correct
23 Correct 564 ms 3692 KB Output is correct
24 Correct 887 ms 3588 KB Output is correct
25 Correct 539 ms 5484 KB Output is correct
26 Correct 682 ms 4204 KB Output is correct
27 Correct 634 ms 4076 KB Output is correct
28 Correct 280 ms 6508 KB Output is correct
29 Correct 323 ms 2820 KB Output is correct
30 Correct 422 ms 4764 KB Output is correct
31 Correct 619 ms 4536 KB Output is correct
32 Correct 908 ms 4604 KB Output is correct
33 Correct 474 ms 3460 KB Output is correct
34 Correct 784 ms 3552 KB Output is correct
35 Correct 677 ms 4244 KB Output is correct
36 Correct 335 ms 2668 KB Output is correct
37 Correct 372 ms 4776 KB Output is correct
38 Correct 344 ms 2540 KB Output is correct
39 Correct 549 ms 3692 KB Output is correct
40 Correct 645 ms 3564 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 91 ms 18028 KB Output is correct
12 Correct 85 ms 18028 KB Output is correct
13 Correct 126 ms 18156 KB Output is correct
14 Correct 206 ms 18028 KB Output is correct
15 Correct 97 ms 18156 KB Output is correct
16 Correct 180 ms 18028 KB Output is correct
17 Correct 155 ms 18028 KB Output is correct
18 Correct 73 ms 18156 KB Output is correct
19 Correct 77 ms 17900 KB Output is correct
20 Correct 86 ms 18028 KB Output is correct
21 Correct 143 ms 18028 KB Output is correct
22 Correct 196 ms 18028 KB Output is correct
23 Correct 89 ms 17964 KB Output is correct
24 Correct 175 ms 17952 KB Output is correct
25 Correct 156 ms 18028 KB Output is correct
26 Correct 74 ms 17900 KB Output is correct
27 Correct 83 ms 18028 KB Output is correct
28 Correct 95 ms 17900 KB Output is correct
29 Correct 112 ms 17900 KB Output is correct
30 Correct 133 ms 18028 KB Output is correct
31 Correct 89 ms 18020 KB Output is correct
32 Correct 201 ms 18028 KB Output is correct
33 Correct 151 ms 18028 KB Output is correct
34 Correct 73 ms 18028 KB Output is correct
35 Correct 126 ms 18156 KB Output is correct
36 Correct 143 ms 18028 KB Output is correct
37 Correct 134 ms 18156 KB Output is correct
38 Correct 126 ms 18028 KB Output is correct
39 Correct 131 ms 18028 KB Output is correct
40 Correct 130 ms 18076 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 317 ms 4368 KB Output is correct
12 Correct 389 ms 4204 KB Output is correct
13 Correct 393 ms 3248 KB Output is correct
14 Correct 568 ms 3564 KB Output is correct
15 Correct 427 ms 4352 KB Output is correct
16 Correct 477 ms 3528 KB Output is correct
17 Correct 486 ms 3564 KB Output is correct
18 Correct 252 ms 5484 KB Output is correct
19 Correct 294 ms 2412 KB Output is correct
20 Correct 350 ms 4304 KB Output is correct
21 Correct 391 ms 4568 KB Output is correct
22 Correct 417 ms 4716 KB Output is correct
23 Correct 564 ms 3692 KB Output is correct
24 Correct 887 ms 3588 KB Output is correct
25 Correct 539 ms 5484 KB Output is correct
26 Correct 682 ms 4204 KB Output is correct
27 Correct 634 ms 4076 KB Output is correct
28 Correct 280 ms 6508 KB Output is correct
29 Correct 323 ms 2820 KB Output is correct
30 Correct 422 ms 4764 KB Output is correct
31 Correct 619 ms 4536 KB Output is correct
32 Correct 908 ms 4604 KB Output is correct
33 Correct 474 ms 3460 KB Output is correct
34 Correct 784 ms 3552 KB Output is correct
35 Correct 677 ms 4244 KB Output is correct
36 Correct 335 ms 2668 KB Output is correct
37 Correct 372 ms 4776 KB Output is correct
38 Correct 344 ms 2540 KB Output is correct
39 Correct 549 ms 3692 KB Output is correct
40 Correct 645 ms 3564 KB Output is correct
41 Correct 91 ms 18028 KB Output is correct
42 Correct 85 ms 18028 KB Output is correct
43 Correct 126 ms 18156 KB Output is correct
44 Correct 206 ms 18028 KB Output is correct
45 Correct 97 ms 18156 KB Output is correct
46 Correct 180 ms 18028 KB Output is correct
47 Correct 155 ms 18028 KB Output is correct
48 Correct 73 ms 18156 KB Output is correct
49 Correct 77 ms 17900 KB Output is correct
50 Correct 86 ms 18028 KB Output is correct
51 Correct 143 ms 18028 KB Output is correct
52 Correct 196 ms 18028 KB Output is correct
53 Correct 89 ms 17964 KB Output is correct
54 Correct 175 ms 17952 KB Output is correct
55 Correct 156 ms 18028 KB Output is correct
56 Correct 74 ms 17900 KB Output is correct
57 Correct 83 ms 18028 KB Output is correct
58 Correct 95 ms 17900 KB Output is correct
59 Correct 112 ms 17900 KB Output is correct
60 Correct 133 ms 18028 KB Output is correct
61 Correct 89 ms 18020 KB Output is correct
62 Correct 201 ms 18028 KB Output is correct
63 Correct 151 ms 18028 KB Output is correct
64 Correct 73 ms 18028 KB Output is correct
65 Correct 126 ms 18156 KB Output is correct
66 Correct 143 ms 18028 KB Output is correct
67 Correct 134 ms 18156 KB Output is correct
68 Correct 126 ms 18028 KB Output is correct
69 Correct 131 ms 18028 KB Output is correct
70 Correct 130 ms 18076 KB Output is correct
71 Correct 662 ms 23132 KB Output is correct
72 Correct 667 ms 22932 KB Output is correct
73 Correct 1410 ms 21496 KB Output is correct
74 Execution timed out 2082 ms 20636 KB Time limit exceeded
75 Halted 0 ms 0 KB -