oj.uz

Submission #909099

# Submission time Handle Problem Language Result Execution time Memory
909099 2024-01-17T05:16:41 Z ibm2006 Amusement Park (CEOI19_amusementpark) C++17
63 / 100
 3000 ms 43572 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
const ll mod=998244353;
ll n,i,j,a[1100][1100],k,l,r,x,y,z,w,s,t,m,b[1100000],bc[1100000],dp[1100000],c[1100000],ans;
vector<ll> v[1100000],u;
vector<ll> f(ll x)
{
    vector<ll> v,u;
    ll i,y=x,z=1,j;
    for(i=1;i<=n;i++)
    {
        if(y&1)
        {
            v.push_back(1<<(i-1));
        }
        y>>=1;
    }
    u.push_back(0);
    for(i=0;i<v.size();i++)
    {
        z=u.size();
        for(j=0;j<z;j++)
        {
            u.push_back(u[j]+v[i]);
        }
    }
    return u;
}
int main()
{
    scanf("%lld %lld",&n,&m);
    for(i=1;i<=m;i++)
    {
        scanf("%lld %lld",&x,&y);
        a[x][y]=1;
        a[y][x]=1;
    }
    t=1;
    for(i=1;i<=n;i++)
    {
        t*=2;
    }
    for(i=0;i<t;i++)
    {
        x=i;
        s=0;
        for(j=1;j<=n;j++)
        {
            b[j]=x&1;
            s+=x&1;
            x>>=1;
        }
        bc[i]=s;
        v[s].push_back(i);
        c[i]=1;
        for(j=1;j<=n;j++)
        {
            for(k=j+1;k<=n;k++)
            {
                if(b[j]==1&&b[k]==1&&a[j][k]==1)
                    c[i]=0;
            }
        }
    }
    dp[0]=1;
    for(l=1;l<=n;l++)
    {
        for(j=0;j<v[l].size();j++)
        {
            x=v[l][j];
           // printf("%lld ",x);
            u=f(x);
            for(i=0;i<u.size();i++)
            {
               // printf("[%lld,%lld]",u[i],c[u[i]]*dp[x-u[i]]);
                if(u[i]==0)
                    continue;
                if(bc[u[i]]&1)
                {
                    dp[x]+=c[u[i]]*dp[x-u[i]];
                }
                else
                    dp[x]-=c[u[i]]*dp[x-u[i]];
                    dp[x]=(dp[x]%mod+mod)%mod;
            }
           // printf("(%lld) ",dp[x]);
        }
      //  printf("\n");
    }
    ans=dp[t-1]*(mod+1)/2%mod*m%mod;
    printf("%lld",ans);
}

Compilation message

amusementpark.cpp: In function 'std::vector<long long int> f(ll)':
amusementpark.cpp:20:14: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for(i=0;i<v.size();i++)
      |             ~^~~~~~~~~
amusementpark.cpp: In function 'int main()':
amusementpark.cpp:69:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |         for(j=0;j<v[l].size();j++)
      |                 ~^~~~~~~~~~~~
amusementpark.cpp:74:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |             for(i=0;i<u.size();i++)
      |                     ~^~~~~~~~~
amusementpark.cpp:83:17: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   83 |                 else
      |                 ^~~~
amusementpark.cpp:85:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   85 |                     dp[x]=(dp[x]%mod+mod)%mod;
      |                     ^~
amusementpark.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     scanf("%lld %lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
amusementpark.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |         scanf("%lld %lld",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35416 KB Output is correct
2 Correct 7 ms 35572 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 11 ms 35420 KB Output is correct
5 Correct 10 ms 35500 KB Output is correct
6 Correct 10 ms 35420 KB Output is correct
7 Correct 11 ms 35420 KB Output is correct
8 Correct 10 ms 35420 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35416 KB Output is correct
2 Correct 7 ms 35572 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 11 ms 35420 KB Output is correct
5 Correct 10 ms 35500 KB Output is correct
6 Correct 10 ms 35420 KB Output is correct
7 Correct 11 ms 35420 KB Output is correct
8 Correct 10 ms 35420 KB Output is correct
9 Correct 11 ms 35448 KB Output is correct
10 Correct 10 ms 35420 KB Output is correct
11 Correct 10 ms 35420 KB Output is correct
12 Correct 9 ms 35420 KB Output is correct
13 Correct 11 ms 35420 KB Output is correct
14 Correct 10 ms 35420 KB Output is correct
15 Correct 10 ms 35576 KB Output is correct
16 Correct 12 ms 35416 KB Output is correct
17 Correct 11 ms 35416 KB Output is correct
18 Correct 10 ms 35420 KB Output is correct
19 Correct 11 ms 35420 KB Output is correct
20 Correct 9 ms 35420 KB Output is correct
21 Correct 10 ms 35508 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 10 ms 35420 KB Output is correct
24 Correct 9 ms 35416 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35416 KB Output is correct
2 Correct 7 ms 35572 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 11 ms 35420 KB Output is correct
5 Correct 10 ms 35500 KB Output is correct
6 Correct 10 ms 35420 KB Output is correct
7 Correct 11 ms 35420 KB Output is correct
8 Correct 10 ms 35420 KB Output is correct
9 Correct 11 ms 35448 KB Output is correct
10 Correct 10 ms 35420 KB Output is correct
11 Correct 10 ms 35420 KB Output is correct
12 Correct 9 ms 35420 KB Output is correct
13 Correct 11 ms 35420 KB Output is correct
14 Correct 10 ms 35420 KB Output is correct
15 Correct 10 ms 35576 KB Output is correct
16 Correct 12 ms 35416 KB Output is correct
17 Correct 11 ms 35416 KB Output is correct
18 Correct 10 ms 35420 KB Output is correct
19 Correct 11 ms 35420 KB Output is correct
20 Correct 9 ms 35420 KB Output is correct
21 Correct 10 ms 35508 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 10 ms 35420 KB Output is correct
24 Correct 9 ms 35416 KB Output is correct
25 Correct 10 ms 35416 KB Output is correct
26 Correct 10 ms 35436 KB Output is correct
27 Correct 11 ms 35732 KB Output is correct
28 Correct 11 ms 35420 KB Output is correct
29 Correct 11 ms 35420 KB Output is correct
30 Correct 11 ms 35416 KB Output is correct
31 Correct 11 ms 35416 KB Output is correct
32 Correct 11 ms 35416 KB Output is correct
33 Correct 11 ms 35420 KB Output is correct
34 Correct 10 ms 35420 KB Output is correct
35 Correct 10 ms 35420 KB Output is correct
36 Correct 10 ms 35420 KB Output is correct
37 Correct 11 ms 35416 KB Output is correct
38 Correct 10 ms 35416 KB Output is correct
39 Correct 10 ms 35420 KB Output is correct
40 Correct 10 ms 35420 KB Output is correct
41 Correct 10 ms 35416 KB Output is correct
42 Correct 11 ms 35420 KB Output is correct
43 Correct 10 ms 35416 KB Output is correct
44 Correct 12 ms 35416 KB Output is correct
45 Correct 11 ms 35524 KB Output is correct
46 Correct 11 ms 35416 KB Output is correct
47 Correct 10 ms 35420 KB Output is correct
48 Correct 10 ms 35420 KB Output is correct
49 Correct 10 ms 35416 KB Output is correct
50 Correct 11 ms 35420 KB Output is correct
51 Correct 10 ms 35420 KB Output is correct
52 Correct 11 ms 35416 KB Output is correct
53 Correct 11 ms 35416 KB Output is correct
54 Correct 12 ms 35420 KB Output is correct
55 Correct 11 ms 35420 KB Output is correct
56 Correct 11 ms 35420 KB Output is correct
57 Correct 12 ms 35416 KB Output is correct
58 Correct 11 ms 35520 KB Output is correct
59 Correct 12 ms 35420 KB Output is correct
60 Correct 10 ms 35420 KB Output is correct
61 Correct 11 ms 35420 KB Output is correct
62 Correct 11 ms 35440 KB Output is correct
63 Correct 11 ms 35444 KB Output is correct
64 Correct 11 ms 35416 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35416 KB Output is correct
2 Correct 7 ms 35572 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 11 ms 35420 KB Output is correct
5 Correct 10 ms 35500 KB Output is correct
6 Correct 10 ms 35420 KB Output is correct
7 Correct 11 ms 35420 KB Output is correct
8 Correct 10 ms 35420 KB Output is correct
9 Correct 11 ms 35448 KB Output is correct
10 Correct 10 ms 35420 KB Output is correct
11 Correct 10 ms 35420 KB Output is correct
12 Correct 9 ms 35420 KB Output is correct
13 Correct 11 ms 35420 KB Output is correct
14 Correct 10 ms 35420 KB Output is correct
15 Correct 10 ms 35576 KB Output is correct
16 Correct 12 ms 35416 KB Output is correct
17 Correct 11 ms 35416 KB Output is correct
18 Correct 10 ms 35420 KB Output is correct
19 Correct 11 ms 35420 KB Output is correct
20 Correct 9 ms 35420 KB Output is correct
21 Correct 10 ms 35508 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 10 ms 35420 KB Output is correct
24 Correct 9 ms 35416 KB Output is correct
25 Correct 10 ms 35416 KB Output is correct
26 Correct 10 ms 35436 KB Output is correct
27 Correct 11 ms 35732 KB Output is correct
28 Correct 11 ms 35420 KB Output is correct
29 Correct 11 ms 35420 KB Output is correct
30 Correct 11 ms 35416 KB Output is correct
31 Correct 11 ms 35416 KB Output is correct
32 Correct 11 ms 35416 KB Output is correct
33 Correct 11 ms 35420 KB Output is correct
34 Correct 10 ms 35420 KB Output is correct
35 Correct 10 ms 35420 KB Output is correct
36 Correct 10 ms 35420 KB Output is correct
37 Correct 11 ms 35416 KB Output is correct
38 Correct 10 ms 35416 KB Output is correct
39 Correct 10 ms 35420 KB Output is correct
40 Correct 10 ms 35420 KB Output is correct
41 Correct 10 ms 35416 KB Output is correct
42 Correct 11 ms 35420 KB Output is correct
43 Correct 10 ms 35416 KB Output is correct
44 Correct 12 ms 35416 KB Output is correct
45 Correct 11 ms 35524 KB Output is correct
46 Correct 11 ms 35416 KB Output is correct
47 Correct 10 ms 35420 KB Output is correct
48 Correct 10 ms 35420 KB Output is correct
49 Correct 10 ms 35416 KB Output is correct
50 Correct 11 ms 35420 KB Output is correct
51 Correct 10 ms 35420 KB Output is correct
52 Correct 11 ms 35416 KB Output is correct
53 Correct 11 ms 35416 KB Output is correct
54 Correct 12 ms 35420 KB Output is correct
55 Correct 11 ms 35420 KB Output is correct
56 Correct 11 ms 35420 KB Output is correct
57 Correct 12 ms 35416 KB Output is correct
58 Correct 11 ms 35520 KB Output is correct
59 Correct 12 ms 35420 KB Output is correct
60 Correct 10 ms 35420 KB Output is correct
61 Correct 11 ms 35420 KB Output is correct
62 Correct 11 ms 35440 KB Output is correct
63 Correct 11 ms 35444 KB Output is correct
64 Correct 11 ms 35416 KB Output is correct
65 Correct 58 ms 35920 KB Output is correct
66 Correct 58 ms 35924 KB Output is correct
67 Correct 60 ms 35924 KB Output is correct
68 Correct 59 ms 35924 KB Output is correct
69 Correct 59 ms 35920 KB Output is correct
70 Correct 62 ms 35920 KB Output is correct
71 Correct 59 ms 35924 KB Output is correct
72 Correct 60 ms 35924 KB Output is correct
73 Correct 59 ms 35920 KB Output is correct
74 Correct 60 ms 35960 KB Output is correct
75 Correct 59 ms 35932 KB Output is correct
76 Correct 58 ms 35920 KB Output is correct
77 Correct 155 ms 38360 KB Output is correct
78 Correct 153 ms 38484 KB Output is correct
79 Correct 148 ms 38408 KB Output is correct
80 Correct 148 ms 38448 KB Output is correct
81 Correct 151 ms 38320 KB Output is correct
82 Correct 148 ms 38444 KB Output is correct
83 Correct 148 ms 38404 KB Output is correct
84 Correct 148 ms 38436 KB Output is correct
85 Correct 156 ms 38516 KB Output is correct
86 Correct 148 ms 38444 KB Output is correct
87 Correct 148 ms 38440 KB Output is correct
88 Correct 150 ms 38444 KB Output is correct
89 Correct 149 ms 38416 KB Output is correct
90 Correct 151 ms 38444 KB Output is correct
91 Correct 147 ms 38440 KB Output is correct
92 Correct 150 ms 38436 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 35416 KB Output is correct
2 Correct 7 ms 35572 KB Output is correct
3 Correct 10 ms 35420 KB Output is correct
4 Correct 11 ms 35420 KB Output is correct
5 Correct 10 ms 35500 KB Output is correct
6 Correct 10 ms 35420 KB Output is correct
7 Correct 11 ms 35420 KB Output is correct
8 Correct 10 ms 35420 KB Output is correct
9 Correct 11 ms 35448 KB Output is correct
10 Correct 10 ms 35420 KB Output is correct
11 Correct 10 ms 35420 KB Output is correct
12 Correct 9 ms 35420 KB Output is correct
13 Correct 11 ms 35420 KB Output is correct
14 Correct 10 ms 35420 KB Output is correct
15 Correct 10 ms 35576 KB Output is correct
16 Correct 12 ms 35416 KB Output is correct
17 Correct 11 ms 35416 KB Output is correct
18 Correct 10 ms 35420 KB Output is correct
19 Correct 11 ms 35420 KB Output is correct
20 Correct 9 ms 35420 KB Output is correct
21 Correct 10 ms 35508 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 10 ms 35420 KB Output is correct
24 Correct 9 ms 35416 KB Output is correct
25 Correct 10 ms 35416 KB Output is correct
26 Correct 10 ms 35436 KB Output is correct
27 Correct 11 ms 35732 KB Output is correct
28 Correct 11 ms 35420 KB Output is correct
29 Correct 11 ms 35420 KB Output is correct
30 Correct 11 ms 35416 KB Output is correct
31 Correct 11 ms 35416 KB Output is correct
32 Correct 11 ms 35416 KB Output is correct
33 Correct 11 ms 35420 KB Output is correct
34 Correct 10 ms 35420 KB Output is correct
35 Correct 10 ms 35420 KB Output is correct
36 Correct 10 ms 35420 KB Output is correct
37 Correct 11 ms 35416 KB Output is correct
38 Correct 10 ms 35416 KB Output is correct
39 Correct 10 ms 35420 KB Output is correct
40 Correct 10 ms 35420 KB Output is correct
41 Correct 10 ms 35416 KB Output is correct
42 Correct 11 ms 35420 KB Output is correct
43 Correct 10 ms 35416 KB Output is correct
44 Correct 12 ms 35416 KB Output is correct
45 Correct 11 ms 35524 KB Output is correct
46 Correct 11 ms 35416 KB Output is correct
47 Correct 10 ms 35420 KB Output is correct
48 Correct 10 ms 35420 KB Output is correct
49 Correct 10 ms 35416 KB Output is correct
50 Correct 11 ms 35420 KB Output is correct
51 Correct 10 ms 35420 KB Output is correct
52 Correct 11 ms 35416 KB Output is correct
53 Correct 11 ms 35416 KB Output is correct
54 Correct 12 ms 35420 KB Output is correct
55 Correct 11 ms 35420 KB Output is correct
56 Correct 11 ms 35420 KB Output is correct
57 Correct 12 ms 35416 KB Output is correct
58 Correct 11 ms 35520 KB Output is correct
59 Correct 12 ms 35420 KB Output is correct
60 Correct 10 ms 35420 KB Output is correct
61 Correct 11 ms 35420 KB Output is correct
62 Correct 11 ms 35440 KB Output is correct
63 Correct 11 ms 35444 KB Output is correct
64 Correct 11 ms 35416 KB Output is correct
65 Correct 58 ms 35920 KB Output is correct
66 Correct 58 ms 35924 KB Output is correct
67 Correct 60 ms 35924 KB Output is correct
68 Correct 59 ms 35924 KB Output is correct
69 Correct 59 ms 35920 KB Output is correct
70 Correct 62 ms 35920 KB Output is correct
71 Correct 59 ms 35924 KB Output is correct
72 Correct 60 ms 35924 KB Output is correct
73 Correct 59 ms 35920 KB Output is correct
74 Correct 60 ms 35960 KB Output is correct
75 Correct 59 ms 35932 KB Output is correct
76 Correct 58 ms 35920 KB Output is correct
77 Correct 155 ms 38360 KB Output is correct
78 Correct 153 ms 38484 KB Output is correct
79 Correct 148 ms 38408 KB Output is correct
80 Correct 148 ms 38448 KB Output is correct
81 Correct 151 ms 38320 KB Output is correct
82 Correct 148 ms 38444 KB Output is correct
83 Correct 148 ms 38404 KB Output is correct
84 Correct 148 ms 38436 KB Output is correct
85 Correct 156 ms 38516 KB Output is correct
86 Correct 148 ms 38444 KB Output is correct
87 Correct 148 ms 38440 KB Output is correct
88 Correct 150 ms 38444 KB Output is correct
89 Correct 149 ms 38416 KB Output is correct
90 Correct 151 ms 38444 KB Output is correct
91 Correct 147 ms 38440 KB Output is correct
92 Correct 150 ms 38436 KB Output is correct
93 Execution timed out 3090 ms 43572 KB Time limit exceeded
94 Halted 0 ms 0 KB -