oj.uz

답안 #1053533

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1053533 2024-08-11T12:56:14 Z VMaksimoski008 Calvinball championship (CEOI15_teams) C++17
20 / 100
 558 ms 32852 KB 
#include <bits/stdc++.h>
#define int long long

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;

int n;
vector<int> v;
ll dp[1005][1005][2];

ll f(int pos, int mx, int under) {
    if(pos == n + 1) return under;
    if(dp[pos][mx][under] != -1) return dp[pos][mx][under];

    ll ans = 0;

    for(int i=1; i<=min(pos, mx+1); i++) {
        if(!under && i > v[pos]) continue;
        ans = (ans + f(pos+1, max(mx, i), under|(i<v[pos]))) % mod;
    }

    return dp[pos][mx][under] = ans;
}

signed main() {
    memset(dp, -1, sizeof(dp));

    cin >> n;
    v.resize(n+1);
    for(int i=1; i<=n; i++) cin >> v[i];

    cout << (f(2, 1, 0) + 1) % mod << '\n';
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 16220 KB Output is correct
2 Correct 2 ms 16220 KB Output is correct
3 Correct 2 ms 16220 KB Output is correct
4 Correct 2 ms 16220 KB Output is correct
5 Correct 2 ms 16220 KB Output is correct
6 Correct 2 ms 16220 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 16220 KB Output is correct
2 Correct 2 ms 16220 KB Output is correct
3 Correct 2 ms 16216 KB Output is correct

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 16216 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 16220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 16220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 70 ms 16220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 558 ms 16220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 82 ms 32676 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 82 ms 32732 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 79 ms 32852 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -