oj.uz

Submission #331814

# Submission time Handle Problem Language Result Execution time Memory
331814 2020-11-30T08:45:18 Z daniel920712 Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1955 ms 55660 KB 
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <string.h>
#include <map>
#include <utility>
#include <algorithm>
#include <stack>
#include <queue>
using namespace std;
char all[1148576];
char tt[25];
int con1[2][1100005];
int con2[2][1100005];
int Con1[1100005];
int Con2[1100005];
int ans=0;
int N;

vector < int > xxx;
vector < pair < int , int > > BFS,ttt;
int main()
{
    //freopen("05-04.txt","rt",stdin);
    //freopen("aa.txt","w+t",stdout);
    int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
    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)];
        }
    }
    for(j=0;j<(1<<N);j++)
    {
        Con1[j]=con1[N%2][j];
        Con2[j]=con2[N%2][j];
    }

    while(M--)
    {
        scanf("%s",tt);
        BFS.clear();
        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++;
        }

        xxx.clear();
        con=0;
        if(b<=a&&b<=c)
        {
            //printf("aa\n");
            for(i=0;i<N;i++)
            {
                if(tt[i]=='1') xxx.push_back((1<<(N-i-1)));
                else if(tt[i]=='?') con+=(1<<(N-i-1));
            }

            BFS.push_back(make_pair(con,0));
            for(auto i:xxx)
            {
                ttt.clear();
                for(auto &j:BFS)
                {
                    ttt.push_back(make_pair(j.first+i,j.second));
                    j.second^=1;
                }
                for(auto j:ttt) BFS.push_back(j);
            }
            for(auto i:BFS)
            {
                if(i.second) ans-=Con1[i.first];
                else ans+=Con1[i.first];
            }
        }
        else if(a<=b&&a<=c)
        {
            for(i=0;i<N;i++)
            {
                if(tt[i]=='?') xxx.push_back((1<<(N-i-1)));
                else if(tt[i]=='1') con+=(1<<(N-i-1));
            }
            BFS.push_back(make_pair(con,0));
            for(auto i:xxx)
            {
                ttt.clear();
                for(auto &j:BFS) ttt.push_back(make_pair(j.first+i,j.second));
                for(auto j:ttt) BFS.push_back(j);

            }
            for(auto i:BFS) ans+=(all[i.first]-'0');

        }
        else if(c<=b&&c<=a)
        {

            for(i=0;i<N;i++)
            {
                if(tt[i]=='0') xxx.push_back((1<<(N-i-1)));
                else if(tt[i]=='1') con+=(1<<(N-i-1));
            }

            BFS.push_back(make_pair(con,0));
            for(auto i:xxx)
            {
                ttt.clear();
                for(auto &j:BFS) ttt.push_back(make_pair(j.first+i,j.second^1));

                for(auto j:ttt) BFS.push_back(j);
            }
            for(auto i:BFS)
            {
                if(i.second) ans-=Con2[i.first];
                else ans+=Con2[i.first];
            }


        }
        printf("%d\n",ans);
    }

	return 0;
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:27:15: warning: unused variable 'ok' [-Wunused-variable]
   27 |     int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
      |               ^~
snake_escaping.cpp:27:24: warning: unused variable 'x' [-Wunused-variable]
   27 |     int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
      |                        ^
snake_escaping.cpp:27:26: warning: unused variable 'y' [-Wunused-variable]
   27 |     int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
      |                          ^
snake_escaping.cpp:27:28: warning: unused variable 'z' [-Wunused-variable]
   27 |     int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
      |                            ^
snake_escaping.cpp:27:36: warning: unused variable 'xx' [-Wunused-variable]
   27 |     int M,i,j,ok,a,b,c,x,y,z,con=0,xx;
      |                                    ^~
snake_escaping.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   28 |     scanf("%d %d",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~
snake_escaping.cpp:29:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |     scanf("%s",all);
      |     ~~~~~^~~~~~~~~~
snake_escaping.cpp:49:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   49 |         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 318 ms 4460 KB Output is correct
12 Correct 352 ms 4192 KB Output is correct
13 Correct 422 ms 3308 KB Output is correct
14 Correct 457 ms 3432 KB Output is correct
15 Correct 415 ms 4448 KB Output is correct
16 Correct 493 ms 3564 KB Output is correct
17 Correct 468 ms 3948 KB Output is correct
18 Correct 278 ms 5356 KB Output is correct
19 Correct 323 ms 2540 KB Output is correct
20 Correct 370 ms 4188 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 318 ms 4460 KB Output is correct
12 Correct 352 ms 4192 KB Output is correct
13 Correct 422 ms 3308 KB Output is correct
14 Correct 457 ms 3432 KB Output is correct
15 Correct 415 ms 4448 KB Output is correct
16 Correct 493 ms 3564 KB Output is correct
17 Correct 468 ms 3948 KB Output is correct
18 Correct 278 ms 5356 KB Output is correct
19 Correct 323 ms 2540 KB Output is correct
20 Correct 370 ms 4188 KB Output is correct
21 Correct 400 ms 4728 KB Output is correct
22 Correct 420 ms 4716 KB Output is correct
23 Correct 525 ms 3820 KB Output is correct
24 Correct 660 ms 3856 KB Output is correct
25 Correct 468 ms 5664 KB Output is correct
26 Correct 620 ms 4096 KB Output is correct
27 Correct 572 ms 4076 KB Output is correct
28 Correct 279 ms 6636 KB Output is correct
29 Correct 361 ms 2656 KB Output is correct
30 Correct 422 ms 4868 KB Output is correct
31 Correct 538 ms 4844 KB Output is correct
32 Correct 737 ms 4716 KB Output is correct
33 Correct 443 ms 3564 KB Output is correct
34 Correct 602 ms 3692 KB Output is correct
35 Correct 579 ms 4332 KB Output is correct
36 Correct 297 ms 2540 KB Output is correct
37 Correct 370 ms 4588 KB Output is correct
38 Correct 393 ms 2856 KB Output is correct
39 Correct 518 ms 3948 KB Output is correct
40 Correct 646 ms 3692 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 87 ms 26220 KB Output is correct
12 Correct 90 ms 26348 KB Output is correct
13 Correct 105 ms 26220 KB Output is correct
14 Correct 147 ms 26220 KB Output is correct
15 Correct 92 ms 26348 KB Output is correct
16 Correct 139 ms 26220 KB Output is correct
17 Correct 125 ms 26220 KB Output is correct
18 Correct 73 ms 26348 KB Output is correct
19 Correct 86 ms 26092 KB Output is correct
20 Correct 90 ms 26220 KB Output is correct
21 Correct 109 ms 26220 KB Output is correct
22 Correct 149 ms 26220 KB Output is correct
23 Correct 89 ms 26220 KB Output is correct
24 Correct 130 ms 26220 KB Output is correct
25 Correct 126 ms 26220 KB Output is correct
26 Correct 87 ms 26092 KB Output is correct
27 Correct 110 ms 26220 KB Output is correct
28 Correct 90 ms 26092 KB Output is correct
29 Correct 108 ms 26220 KB Output is correct
30 Correct 137 ms 26220 KB Output is correct
31 Correct 89 ms 26092 KB Output is correct
32 Correct 140 ms 26220 KB Output is correct
33 Correct 129 ms 26220 KB Output is correct
34 Correct 76 ms 26112 KB Output is correct
35 Correct 109 ms 26160 KB Output is correct
36 Correct 120 ms 26220 KB Output is correct
37 Correct 110 ms 26220 KB Output is correct
38 Correct 108 ms 26220 KB Output is correct
39 Correct 114 ms 26220 KB Output is correct
40 Correct 113 ms 26220 KB Output is correct

Subtask #5
25.0 / 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 318 ms 4460 KB Output is correct
12 Correct 352 ms 4192 KB Output is correct
13 Correct 422 ms 3308 KB Output is correct
14 Correct 457 ms 3432 KB Output is correct
15 Correct 415 ms 4448 KB Output is correct
16 Correct 493 ms 3564 KB Output is correct
17 Correct 468 ms 3948 KB Output is correct
18 Correct 278 ms 5356 KB Output is correct
19 Correct 323 ms 2540 KB Output is correct
20 Correct 370 ms 4188 KB Output is correct
21 Correct 400 ms 4728 KB Output is correct
22 Correct 420 ms 4716 KB Output is correct
23 Correct 525 ms 3820 KB Output is correct
24 Correct 660 ms 3856 KB Output is correct
25 Correct 468 ms 5664 KB Output is correct
26 Correct 620 ms 4096 KB Output is correct
27 Correct 572 ms 4076 KB Output is correct
28 Correct 279 ms 6636 KB Output is correct
29 Correct 361 ms 2656 KB Output is correct
30 Correct 422 ms 4868 KB Output is correct
31 Correct 538 ms 4844 KB Output is correct
32 Correct 737 ms 4716 KB Output is correct
33 Correct 443 ms 3564 KB Output is correct
34 Correct 602 ms 3692 KB Output is correct
35 Correct 579 ms 4332 KB Output is correct
36 Correct 297 ms 2540 KB Output is correct
37 Correct 370 ms 4588 KB Output is correct
38 Correct 393 ms 2856 KB Output is correct
39 Correct 518 ms 3948 KB Output is correct
40 Correct 646 ms 3692 KB Output is correct
41 Correct 87 ms 26220 KB Output is correct
42 Correct 90 ms 26348 KB Output is correct
43 Correct 105 ms 26220 KB Output is correct
44 Correct 147 ms 26220 KB Output is correct
45 Correct 92 ms 26348 KB Output is correct
46 Correct 139 ms 26220 KB Output is correct
47 Correct 125 ms 26220 KB Output is correct
48 Correct 73 ms 26348 KB Output is correct
49 Correct 86 ms 26092 KB Output is correct
50 Correct 90 ms 26220 KB Output is correct
51 Correct 109 ms 26220 KB Output is correct
52 Correct 149 ms 26220 KB Output is correct
53 Correct 89 ms 26220 KB Output is correct
54 Correct 130 ms 26220 KB Output is correct
55 Correct 126 ms 26220 KB Output is correct
56 Correct 87 ms 26092 KB Output is correct
57 Correct 110 ms 26220 KB Output is correct
58 Correct 90 ms 26092 KB Output is correct
59 Correct 108 ms 26220 KB Output is correct
60 Correct 137 ms 26220 KB Output is correct
61 Correct 89 ms 26092 KB Output is correct
62 Correct 140 ms 26220 KB Output is correct
63 Correct 129 ms 26220 KB Output is correct
64 Correct 76 ms 26112 KB Output is correct
65 Correct 109 ms 26160 KB Output is correct
66 Correct 120 ms 26220 KB Output is correct
67 Correct 110 ms 26220 KB Output is correct
68 Correct 108 ms 26220 KB Output is correct
69 Correct 114 ms 26220 KB Output is correct
70 Correct 113 ms 26220 KB Output is correct
71 Correct 684 ms 31120 KB Output is correct
72 Correct 730 ms 31340 KB Output is correct
73 Correct 1000 ms 29804 KB Output is correct
74 Correct 1860 ms 30124 KB Output is correct
75 Correct 772 ms 53612 KB Output is correct
76 Correct 1628 ms 52032 KB Output is correct
77 Correct 1326 ms 51948 KB Output is correct
78 Correct 412 ms 55660 KB Output is correct
79 Correct 643 ms 49656 KB Output is correct
80 Correct 713 ms 52740 KB Output is correct
81 Correct 1097 ms 52588 KB Output is correct
82 Correct 1955 ms 51828 KB Output is correct
83 Correct 719 ms 51136 KB Output is correct
84 Correct 1569 ms 51580 KB Output is correct
85 Correct 1362 ms 51948 KB Output is correct
86 Correct 418 ms 49516 KB Output is correct
87 Correct 681 ms 52716 KB Output is correct
88 Correct 650 ms 49516 KB Output is correct
89 Correct 1000 ms 51252 KB Output is correct
90 Correct 1593 ms 51688 KB Output is correct
91 Correct 713 ms 50924 KB Output is correct
92 Correct 1611 ms 52008 KB Output is correct
93 Correct 1339 ms 51872 KB Output is correct
94 Correct 407 ms 49568 KB Output is correct
95 Correct 1112 ms 51864 KB Output is correct
96 Correct 1130 ms 48164 KB Output is correct
97 Correct 1115 ms 51692 KB Output is correct
98 Correct 1112 ms 51948 KB Output is correct
99 Correct 1102 ms 51884 KB Output is correct
100 Correct 1109 ms 51820 KB Output is correct