oj.uz

Submission #927721

# Submission time Handle Problem Language Result Execution time Memory
927721 2024-02-15T09:20:17 Z andrei_boaca Misspelling (JOI22_misspelling) C++17
28 / 100
 4000 ms 156132 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
const int mod=1e9+7;
int n,m;
int lastmare[500005],lastmic[500005];
int dp[3][27][500005]; /// 0 -> egal, 1 -> mai mic, 2 -> mai mare
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>m;
    for(int i=1;i<=m;i++)
    {
        int a,b;
        cin>>a>>b;
        if(a<b)
            lastmic[a]=max(lastmic[a],b);
        if(a>b)
            lastmare[b]=max(lastmare[b],a);
    }
    for(int i=1;i<=26;i++)
        dp[2][i][1]=1;
    for(int i=2;i<=n;i++)
    {
        int pmare=i,pmic=i;
        /// mai mare
        for(int j=i-1;j>=1;j--)
        {
            if(lastmic[j]>=i)
                break;
            pmare=j;
        }
        /// mai mic
        for(int j=i-1;j>=1;j--)
        {
            if(lastmare[j]>=i)
                break;
            pmic=j;
        }
        for(int c=1;c<=26;c++)
        {
            dp[0][c][i]=(1LL*dp[0][c][i-1]+1LL*dp[1][c][i-1]+1LL*dp[2][c][i-1])%mod;
            for(int j=i-1;j>=pmic;j--)
                for(int prv=1;prv<c;prv++)
                {
                    int val=(1LL*dp[1][prv][j]+1LL*dp[2][prv][j])%mod;
                    dp[1][c][i]=(dp[1][c][i]+val)%mod;
                }
            for(int j=i-1;j>=pmare;j--)
                for(int prv=c+1;prv<=26;prv++)
                {
                    int val=(1LL*dp[1][prv][j]+1LL*dp[2][prv][j])%mod;
                    dp[2][c][i]=(dp[2][c][i]+val)%mod;
                }
        }
    }
    int ans=0;
    for(int c=1;c<=26;c++)
    {
        ans=(ans+dp[0][c][n])%mod;
        ans=(ans+dp[1][c][n])%mod;
        ans=(ans+dp[2][c][n])%mod;
    }
    cout<<ans;
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 52056 KB Output is correct
2 Correct 6 ms 52060 KB Output is correct
3 Correct 6 ms 52056 KB Output is correct
4 Correct 6 ms 52056 KB Output is correct
5 Correct 6 ms 52060 KB Output is correct
6 Correct 6 ms 52060 KB Output is correct
7 Correct 6 ms 52060 KB Output is correct
8 Correct 6 ms 51948 KB Output is correct
9 Correct 6 ms 52056 KB Output is correct
10 Correct 6 ms 52056 KB Output is correct
11 Correct 7 ms 52060 KB Output is correct
12 Correct 7 ms 52060 KB Output is correct
13 Correct 6 ms 52060 KB Output is correct
14 Correct 6 ms 52060 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 52056 KB Output is correct
2 Correct 6 ms 52060 KB Output is correct
3 Correct 6 ms 52056 KB Output is correct
4 Correct 6 ms 52056 KB Output is correct
5 Correct 6 ms 52060 KB Output is correct
6 Correct 6 ms 52060 KB Output is correct
7 Correct 6 ms 52060 KB Output is correct
8 Correct 6 ms 51948 KB Output is correct
9 Correct 6 ms 52056 KB Output is correct
10 Correct 6 ms 52056 KB Output is correct
11 Correct 7 ms 52060 KB Output is correct
12 Correct 7 ms 52060 KB Output is correct
13 Correct 6 ms 52060 KB Output is correct
14 Correct 6 ms 52060 KB Output is correct
15 Correct 32 ms 52180 KB Output is correct
16 Correct 16 ms 52056 KB Output is correct
17 Correct 10 ms 52056 KB Output is correct
18 Correct 7 ms 52060 KB Output is correct
19 Correct 9 ms 52024 KB Output is correct
20 Correct 9 ms 52060 KB Output is correct
21 Correct 8 ms 52024 KB Output is correct
22 Correct 7 ms 52060 KB Output is correct
23 Correct 52 ms 52172 KB Output is correct
24 Correct 12 ms 52056 KB Output is correct
25 Correct 8 ms 52060 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 52060 KB Output is correct
2 Correct 6 ms 52060 KB Output is correct
3 Correct 7 ms 52060 KB Output is correct
4 Correct 7 ms 52060 KB Output is correct
5 Correct 2718 ms 156132 KB Output is correct
6 Execution timed out 4040 ms 131356 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 52056 KB Output is correct
2 Correct 6 ms 52060 KB Output is correct
3 Correct 6 ms 52056 KB Output is correct
4 Correct 6 ms 52056 KB Output is correct
5 Correct 6 ms 52060 KB Output is correct
6 Correct 6 ms 52060 KB Output is correct
7 Correct 6 ms 52060 KB Output is correct
8 Correct 6 ms 51948 KB Output is correct
9 Correct 6 ms 52056 KB Output is correct
10 Correct 6 ms 52056 KB Output is correct
11 Correct 7 ms 52060 KB Output is correct
12 Correct 7 ms 52060 KB Output is correct
13 Correct 6 ms 52060 KB Output is correct
14 Correct 6 ms 52060 KB Output is correct
15 Correct 32 ms 52180 KB Output is correct
16 Correct 16 ms 52056 KB Output is correct
17 Correct 10 ms 52056 KB Output is correct
18 Correct 7 ms 52060 KB Output is correct
19 Correct 9 ms 52024 KB Output is correct
20 Correct 9 ms 52060 KB Output is correct
21 Correct 8 ms 52024 KB Output is correct
22 Correct 7 ms 52060 KB Output is correct
23 Correct 52 ms 52172 KB Output is correct
24 Correct 12 ms 52056 KB Output is correct
25 Correct 8 ms 52060 KB Output is correct
26 Correct 56 ms 56144 KB Output is correct
27 Execution timed out 4027 ms 53388 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 52056 KB Output is correct
2 Correct 6 ms 52060 KB Output is correct
3 Correct 6 ms 52056 KB Output is correct
4 Correct 6 ms 52056 KB Output is correct
5 Correct 6 ms 52060 KB Output is correct
6 Correct 6 ms 52060 KB Output is correct
7 Correct 6 ms 52060 KB Output is correct
8 Correct 6 ms 51948 KB Output is correct
9 Correct 6 ms 52056 KB Output is correct
10 Correct 6 ms 52056 KB Output is correct
11 Correct 7 ms 52060 KB Output is correct
12 Correct 7 ms 52060 KB Output is correct
13 Correct 6 ms 52060 KB Output is correct
14 Correct 6 ms 52060 KB Output is correct
15 Correct 32 ms 52180 KB Output is correct
16 Correct 16 ms 52056 KB Output is correct
17 Correct 10 ms 52056 KB Output is correct
18 Correct 7 ms 52060 KB Output is correct
19 Correct 9 ms 52024 KB Output is correct
20 Correct 9 ms 52060 KB Output is correct
21 Correct 8 ms 52024 KB Output is correct
22 Correct 7 ms 52060 KB Output is correct
23 Correct 52 ms 52172 KB Output is correct
24 Correct 12 ms 52056 KB Output is correct
25 Correct 8 ms 52060 KB Output is correct
26 Correct 7 ms 52060 KB Output is correct
27 Correct 6 ms 52060 KB Output is correct
28 Correct 7 ms 52060 KB Output is correct
29 Correct 7 ms 52060 KB Output is correct
30 Correct 2718 ms 156132 KB Output is correct
31 Execution timed out 4040 ms 131356 KB Time limit exceeded
32 Halted 0 ms 0 KB -