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Submission #852127

# Submission time Handle Problem Language Result Execution time Memory
852127 2023-09-21T09:27:19 Z kderylo Calvinball championship (CEOI15_teams) C++17
40 / 100
 183 ms 784 KB 
#include <iostream>
using namespace std;
const int stala=1e4+10;
const long long mod=1000007;
long long dp[stala][2];
long long dp2[stala][2];
int tab[stala];
void prep(int ile)
{
    for(int i=1;i<=ile;i++){
        dp[i][1]=dp[i][0];
        dp2[i][1]=dp2[i][0];
        dp[i][0]=0;
        dp2[i][0]=0;
    }
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int ile;
    cin>>ile;
    for(int i=1;i<=ile;i++){
        cin>>tab[i];
    }
    long long wyn=0;
    for(int i=ile;i>=1;i--){
        if(i==ile){
            for(int j=1;j<=ile;j++){
                dp[j][0]=j;
                dp2[j][0]=1;
            }
        }
        else{
            for(int j=1;j<=i;j++){
                dp[j][0]=(long long)j*(dp[j][1]+dp2[j+1][1]);
                dp2[j][0]=dp[j][1]+dp2[j+1][1];
                dp[j][0]%=mod;
                dp[j][1]%=mod;
            }
        }
        wyn+=dp[tab[i]-1][0];
        wyn%=mod;
        prep(i);
    }
    wyn++;
    wyn%=mod;
    cout<<wyn;

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 600 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 464 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 600 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 183 ms 784 KB Output isn't correct
2 Halted 0 ms 0 KB -