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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#165877#5507. Investorsarseny_y#WA 2ms3508kbC++231.7kb2023-09-05 22:30:052023-09-05 22:30:06

Judging History

你现在查看的是最新测评结果

  • [2023-09-05 22:30:06]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:3508kb
  • [2023-09-05 22:30:05]
  • 提交

answer

//I wrote this code 4 u today
#include <bits/stdc++.h>

template<class t> using vc = std::vector<t>;

#define nd node*
#define pnd pair<nd, nd>

using namespace std;
typedef long long ll;
typedef vector<ll> vll;
typedef pair<ll, ll> pll;
typedef vc<pll> vpll;
typedef vc<vll> vvll;
typedef vc<vpll> vvpll;

template<const ll MOD>
struct mod_mul : std::multiplies<const ll> {
    ll operator()(const ll a, const ll b) {
        return (a * b) % MOD;
    }
};


template<typename T>
inline void sort(T &a) {
    sort(a.begin(), a.end());
}

template<typename T>
inline void unique(T &a) {
    a.resize(unique(a.begin(), a.end()) - a.begin());
}

template<typename T>
inline void reverse(T &a) {
    reverse(a.begin(), a.end());
}

const ll INF = 9023372036854775808ll;
const ll MOD = 1000000007ll;

int main() {
    cin.tie(nullptr)->ios_base::sync_with_stdio(false);
    int t;
    cin >> t;
    while (t--) {
        int n, k;
        cin >> n >> k;
        vc<int> a(n);
        for (auto &i: a) cin >> i;
        k = min(k, k - 1);
        a.insert(a.begin(), 0);
        vc<vc<int>> dp(n + 2, vc<int>(n + 2, INF));
        vc<vc<int>> cnt(n + 2, vc<int>(n + 2));
        for (int i = 1; i <= n; ++i) for (int j = i, now = 0; j >= 1; --j) {
            cnt[j][i] = cnt[j][i - 1] + (now += (a[i] < a[j]));
        }
        for (int i = 1; i <= n; ++i) dp[i][0] = cnt[1][i];
        for (int i = 0; i <= k; ++i) dp[0][i] = 0;
        for (int i = 2; i <= n; ++i) {
            for (int c = 1; c <= k; ++c) {
                for (int j = 0; j < i; ++j) {
                    dp[i][c] = min(dp[j][c - 1] + cnt[j + 1][i], dp[i][c]);
                }
            }
        }
        cout << dp[n][k] << '\n';
    }
}

Details

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Test #1:

score: 0
Wrong Answer
time: 2ms
memory: 3508kb

input:

2
6 1
4 5 6 2 2 1
6 2
4 5 6 2 2 1

output:

11
2

result:

wrong answer 1st lines differ - expected: '2', found: '11'