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Submission #99674

# Submission time Handle Problem Language Result Execution time Memory
99674 2019-03-06T05:38:00 Z HardNut Calvinball championship (CEOI15_teams) C++17
10 / 100
 15 ms 4224 KB 
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 2e5 + 5;
const ll INF = 1e18 + 5;
const ll mod = 1e6 + 7;
const int tx[] = {1, -1, 0, 0}, ty[] = {0, 0, 1, -1};
const ll bs = 31;

int n, a[N], b[N], cnt, res[N];
int dp[1005][1005];

void rec(int cur = 1, int len = 1) {
    if (len == n) {
        cnt++;
        return;
        for (int i = 1; i <= n; i++) {
            if (a[i] != b[i])
                return;
        }
        cout << cnt % mod;
        exit(0);
    }
    for (int i = 1; i <= cur + 1; i++) {
        b[len + 1] = i;
        rec(max(cur, i), len + 1);
        b[len + 1] = 0;
    }
}

int main() {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        dp[n][i] = 1;
    }
    for (int i = n - 1; i >= 1; i--) {
        for (int j = 1; j <= n; j++) {
            dp[i][j] = ((dp[i + 1][j] * j) % mod + dp[i][j]) % mod;
            dp[i][j] = (dp[i][j] + dp[i + 1][j + 1]) % mod;
        }
    }
    int ans = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j < a[i]; j++) {
            ans = (ans + dp[i][j]) % mod;
        }
    }
    cout << ans + 1;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 304 KB Output is correct
6 Correct 2 ms 384 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 640 KB Output isn't correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 768 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 2304 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 15 ms 4224 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 384 KB Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 384 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -