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Submission #654491

# Submission time Handle Problem Language Result Execution time Memory
654491 2022-10-31T13:31:34 Z Rafi22 L-triominoes (CEOI21_ltriominoes) C++14
62 / 100
 3182 ms 9832 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
#define ld long double
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;

const int N=(1<<13)+7;

set<int>G[N];
bool DP[N],nDP[N];
int n,m,k;

void bt(int x,int p,int i,int y)
{
    int X=x|p;
    if(i==n)
    {
        if(X!=(1<<n)-1) return ;
        G[x].insert(y);
        return ;
    }
    bt(x,p,i+1,y);
    if(i<n-1)
    {
        if(!(X&(1<<i))&&!(X&(1<<(i+1)))&&!(y&(1<<(i+1)))) bt(x,p|(1<<i)|(1<<(i+1)),i+1,y|(1<<(i+1)));
        if(!(X&(1<<i))&&!(X&(1<<(i+1)))&&!(y&(1<<i))) bt(x,p|(1<<i)|(1<<(i+1)),i+1,y|(1<<i));
        if(!(X&(1<<i))&&!(y&(1<<(i+1)))&&!(y&(1<<i))) bt(x,p|(1<<i),i+1,y|(1<<i)|(1<<(i+1)));
    }
    if(i>0&&!(X&(1<<i))&&!(y&(1<<(i-1)))&&!(y&(1<<i))) bt(x,p|(1<<i),i+1,y|(1<<i)|(1<<(i-1)));
}

set<int>S;
map<int,vector<int>>M;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m>>k;
    for(int i=0;i<(1<<n);i++) bt(i,0,0,0);
    for(int i=0;i<k;i++)
    {
        int x,y;
        cin>>x>>y;
        S.insert(y);
        M[y].pb(x);
    }
    S.insert(m);
    DP[0]=1;
    int l=1;
    for(auto p:S)
    {
        int X=0;
        for(auto c:M[p]) X|=(1<<(c-1));
        if(p-l>15)
        {
            vector<bool>is(3,0);
            for(int i=0;i<(1<<n);i++)
            {
                if(DP[i]) is[__builtin_popcount(i)%3]=1;
            }
            for(int i=0;i<(1<<n);i++)
            {
                if(is[((p-l)%3*n%3+__builtin_popcount(i))%3]) DP[i]=1;
                else DP[i]=0;
            }
        }
        else
        {
            for(int j=0;j<p-l;j++)
            {
                memset(nDP,0,sizeof nDP);
                for(int i=0; i<(1<<n); i++)
                {
                    if(!DP[i]) continue;
                    for(auto x:G[i]) nDP[x]=1;
                }
                for(int i=0;i<(1<<n);i++) DP[i]=nDP[i];
            }
        }
        memset(nDP,0,sizeof nDP);
        for(int i=0;i<(1<<n);i++)
        {
            if(DP[i]&&!(i&X)) nDP[i|X]=1;
        }
        for(int i=0;i<(1<<n);i++) DP[i]=nDP[i];
        l=p;
    }
    if(DP[(1<<n)-1]) cout<<"YES";
    else cout<<"NO";


    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 708 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 73 ms 4044 KB Output is correct
9 Correct 22 ms 1964 KB Output is correct
10 Correct 2 ms 840 KB Output is correct
11 Correct 73 ms 4036 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 712 KB Output is correct
15 Correct 70 ms 4164 KB Output is correct
16 Correct 1183 ms 9780 KB Output is correct
17 Correct 14 ms 1108 KB Output is correct
18 Correct 282 ms 4192 KB Output is correct
19 Correct 2 ms 724 KB Output is correct
20 Correct 842 ms 9764 KB Output is correct
21 Correct 216 ms 4104 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 2 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 383 ms 9580 KB Output is correct
26 Correct 730 ms 9768 KB Output is correct
27 Correct 1 ms 724 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 724 KB Output is correct
2 Correct 1 ms 712 KB Output is correct
3 Correct 1 ms 708 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 71 ms 4084 KB Output is correct
6 Correct 19 ms 1992 KB Output is correct
7 Correct 7 ms 1108 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Incorrect 1 ms 596 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 596 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Correct 1 ms 724 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 1 ms 716 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Incorrect 1 ms 724 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 724 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 1 ms 708 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 724 KB Output is correct
17 Correct 2 ms 724 KB Output is correct
18 Correct 1 ms 724 KB Output is correct
19 Correct 1 ms 724 KB Output is correct
20 Correct 1 ms 724 KB Output is correct
21 Correct 1 ms 712 KB Output is correct
22 Correct 1 ms 712 KB Output is correct
23 Correct 1 ms 708 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 708 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 1 ms 716 KB Output is correct
29 Correct 1 ms 724 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 1 ms 724 KB Output is correct
32 Correct 1 ms 724 KB Output is correct
33 Correct 1 ms 724 KB Output is correct
34 Correct 2 ms 724 KB Output is correct
35 Correct 2 ms 724 KB Output is correct
36 Correct 1 ms 724 KB Output is correct
37 Correct 2 ms 724 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 724 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 81 ms 4056 KB Output is correct
5 Correct 26 ms 1876 KB Output is correct
6 Correct 29 ms 1940 KB Output is correct
7 Correct 8 ms 1108 KB Output is correct
8 Correct 8 ms 1108 KB Output is correct
9 Correct 9 ms 1100 KB Output is correct
10 Correct 11 ms 1108 KB Output is correct
11 Correct 69 ms 4072 KB Output is correct
12 Correct 22 ms 1868 KB Output is correct
13 Correct 3 ms 852 KB Output is correct
14 Correct 75 ms 4044 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 2 ms 712 KB Output is correct
17 Correct 8 ms 1108 KB Output is correct
18 Correct 2 ms 716 KB Output is correct
19 Correct 3 ms 852 KB Output is correct
20 Correct 75 ms 4040 KB Output is correct
21 Correct 25 ms 2004 KB Output is correct
22 Correct 2 ms 724 KB Output is correct
23 Correct 4 ms 840 KB Output is correct
24 Correct 282 ms 9832 KB Output is correct
25 Correct 96 ms 4132 KB Output is correct
26 Correct 296 ms 9720 KB Output is correct
27 Correct 297 ms 9628 KB Output is correct
28 Correct 279 ms 9648 KB Output is correct
29 Correct 293 ms 9684 KB Output is correct
30 Correct 471 ms 9664 KB Output is correct
31 Correct 291 ms 9688 KB Output is correct
32 Correct 287 ms 9664 KB Output is correct
33 Correct 76 ms 4076 KB Output is correct
34 Correct 283 ms 9688 KB Output is correct
35 Correct 266 ms 9700 KB Output is correct
36 Correct 270 ms 9692 KB Output is correct
37 Correct 75 ms 3976 KB Output is correct
38 Correct 89 ms 4044 KB Output is correct
39 Correct 30 ms 2008 KB Output is correct
40 Correct 270 ms 9692 KB Output is correct
41 Correct 30 ms 1904 KB Output is correct
42 Correct 269 ms 9832 KB Output is correct
43 Correct 556 ms 9684 KB Output is correct
44 Correct 285 ms 9684 KB Output is correct
45 Correct 268 ms 9564 KB Output is correct
46 Correct 81 ms 4052 KB Output is correct
47 Correct 3182 ms 9692 KB Output is correct
48 Correct 2360 ms 9692 KB Output is correct
49 Correct 830 ms 9688 KB Output is correct
50 Correct 114 ms 2000 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 596 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 708 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 73 ms 4044 KB Output is correct
9 Correct 22 ms 1964 KB Output is correct
10 Correct 2 ms 840 KB Output is correct
11 Correct 73 ms 4036 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 712 KB Output is correct
15 Correct 70 ms 4164 KB Output is correct
16 Correct 1183 ms 9780 KB Output is correct
17 Correct 14 ms 1108 KB Output is correct
18 Correct 282 ms 4192 KB Output is correct
19 Correct 2 ms 724 KB Output is correct
20 Correct 842 ms 9764 KB Output is correct
21 Correct 216 ms 4104 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 2 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 383 ms 9580 KB Output is correct
26 Correct 730 ms 9768 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 1 ms 724 KB Output is correct
29 Correct 1 ms 712 KB Output is correct
30 Correct 1 ms 708 KB Output is correct
31 Correct 1 ms 724 KB Output is correct
32 Correct 71 ms 4084 KB Output is correct
33 Correct 19 ms 1992 KB Output is correct
34 Correct 7 ms 1108 KB Output is correct
35 Correct 1 ms 724 KB Output is correct
36 Incorrect 1 ms 596 KB Output isn't correct
37 Halted 0 ms 0 KB -