oj.uz

Submission #527279

# Submission time Handle Problem Language Result Execution time Memory
527279 2022-02-17T05:09:46 Z Hydroxic_Acid Calvinball championship (CEOI15_teams) C++17
50 / 100
 4 ms 332 KB 
#include <iostream>
#include <cstring>
using namespace std;

int N;
int arr[10005];
int memo[105][105][2];

int dp(int idx, int num, int marker){
    if(idx >= N) return 0;
    if(idx == N - 1) return 1;
    if(num > N) return 0;
    if(memo[idx][num][marker] != -1) return memo[idx][num][marker];
    int summ = 0;
    for(int i = 1; i <= num + 1; i++){
        if(marker){
            if(i == arr[idx + 1]) summ += dp(idx + 1, max(num, i), 1);
            else if (i < arr[idx + 1]) summ += dp(idx + 1, num, 0);
            else break;
        }
        else if(i == num + 1) summ += dp(idx + 1, num + 1, 0);
        else summ += dp(idx + 1, num, 0);
        summ %= 1000007;
    }
    memo[idx][num][marker] = summ;
    return summ;
}

int main(){
    cin >> N;
    for(int i = 0; i < N; i++) cin >> arr[i];
    memset(memo, -1, sizeof(memo));
    cout << dp(0, 1, 1);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 3 ms 332 KB Output is correct

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 332 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 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -