oj.uz

답안 #758042

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
758042 2023-06-14T05:35:04 Z ProtonDecay314 Fruits (NOI22_fruits) C++17
11 / 100
 224 ms 15272 KB 
/*
-1 -1 -1 3 -1

So in subtask 5, the goal is to have the 
smallest number of inversions(?)
equivalently, it is to maximize the
length of the longest increasing subsequence
in O(N)

Ok, let's not do that for now, since too difficult

Okay subtask 1
Idea: generate all permutations
check if the permutation is valid
If it is, go through all ks and maximize
congratulations, you have your answer
*/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

void print_vec(const vector<ll>& v) {
    for(const ll& vv : v) {
        cout << vv << " ";
    }
    cout << endl;
}

ll factorial(ll n) {
    ll ans = 1ll;

    for(ll i = 1ll; i <= n; i++) {
        ans *= i;
    }

    return ans;
}

vector<ll> solve_subtask_1(ll n, const vector<ll>& a, const vector<ll>& c) {
    vector<ll> cur_perm;
    for(ll i = 0ll ; i < n; i++) {
        cur_perm.push_back(i);
    }

    ll factn = factorial(n);

    vector<ll> ans(n, numeric_limits<ll>::min());
    for(ll i = 0; i < factn; i++) {
        bool is_valid = true;

        for(ll j = 0; j < n; j++) {
            if(a[j] != -1 && a[j] != cur_perm[j]) is_valid = false;
        }
        if(is_valid) {
            ll maxt = numeric_limits<ll>::min();
            ll cursumcost = 0ll;
            for(ll j = 0; j < n; j++) {
                if(cur_perm[j] > maxt) {
                    maxt = cur_perm[j];
                    cursumcost += c[cur_perm[j]];
                }
                ans[j] = max(ans[j], cursumcost);
            }
        }
        next_permutation(cur_perm.begin(), cur_perm.end());
    }

    return ans;
}

vector<ll> solve_subtask_2(ll n, const vector<ll>& a, const vector<ll>& c) {

    vector<ll> ans(n, 0);

    partial_sum(c.rbegin(), c.rend(), ans.begin(), plus<ll>());
    return ans;
}

int main() {
    ll n;
    cin >> n;

    vector<ll> a(n, 0);
    vector<ll> c(n, 0);

    for(ll& av : a) {
        cin >> av;
        if(av > 0) av--;
    }

    for(ll& cv : c) {
        cin >> cv;
    }

    if(n <= 8) {
        print_vec(solve_subtask_1(n, a, c));
    } else {
        // Assume that subtask 2 holds
        print_vec(solve_subtask_2(n, a, c));
    }

    return 0;
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 352 KB Output is correct
3 Correct 13 ms 1024 KB Output is correct
4 Correct 131 ms 7792 KB Output is correct
5 Correct 224 ms 15272 KB Output is correct
6 Correct 1 ms 212 KB Output is correct

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 212 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 212 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 169 ms 12508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 42.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 2 ms 352 KB Output is correct
13 Correct 13 ms 1024 KB Output is correct
14 Correct 131 ms 7792 KB Output is correct
15 Correct 224 ms 15272 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Incorrect 1 ms 212 KB Output isn't correct
18 Halted 0 ms 0 KB -