Submission #770895

#	Time	Username	Problem	Language	Result	Execution time	Memory
770895		drdilyor	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	1073 ms	516 KiB

triusis

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int inf = 1e9;

int main() {
    int n, m;
    cin >> n >> m;
    n++;
    vector<int> arr(n);
    for (int i = 1; i < n; i++) 
        cin >> arr[i];

    const int M = 5e3;

    vector memo(n, vector(M+1, -1));
    auto dp = [&](auto& dp, int i, int x)->int {
        if (x < 0) return inf;
        if (x > M) return inf;
        if (i == 0) {
            return x== arr[i] ? 0 : inf;
        }
        if (memo[i][x] != -1) return memo[i][x];

        int res = inf;
        for (int p = x-m; p <= x+m; p++) {
            res = min(res, dp(dp, i-1, p) + (x != arr[i]));
        }
        return memo[i][x] = res;
    };

    int res = inf;
    for (int i = 0; i <= M; i++)
        res = min(res, dp(dp, n-1, i));
    cout << res << '\n';

    return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37