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Submission #559429

# Submission time Handle Problem Language Result Execution time Memory
559429 2022-05-09T18:17:24 Z groshi Calvinball championship (CEOI15_teams) C++17
100 / 100
 681 ms 616 KB 
#include<iostream>

using namespace std;
int t[200000];
int mod=1e6+7;
long long dp[2][200000];
int maxx[200000];
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>t[i];
    for(int i=1;i<=n;i++)
        dp[0][i]=1;
    long long wynik=1;
    for(int i=1;i<=n;i++)
        maxx[i]=max(maxx[i-1],t[i]);
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
            dp[i%2][j]=(j*dp[(i-1)%2][j]+dp[(i-1)%2][j+1])%mod;
        wynik+=(t[n-i+1]-1)*dp[(i-1)%2][maxx[n-i]];
        wynik%=mod;
    }
    cout<<wynik;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 340 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 2 ms 364 KB Output is correct
3 Correct 2 ms 340 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 340 KB Output is correct
2 Correct 7 ms 340 KB Output is correct
3 Correct 7 ms 340 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 659 ms 556 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 468 KB Output is correct
2 Correct 163 ms 468 KB Output is correct
3 Correct 164 ms 472 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 678 ms 564 KB Output is correct
2 Correct 681 ms 596 KB Output is correct
3 Correct 680 ms 616 KB Output is correct