Submission #1284363

#	Time	Username	Problem	Language	Result	Execution time	Memory
1284363		tnt	Rabbit Carrot (LMIO19_triusis)	C++20	0 / 100	10 ms	580 KiB

triusis

#include <bits/stdc++.h>
using namespace std;

#define pb push_back                    
#define ll long long 
#define s second
#define pb push_back
#define f first
#define int long long
#define s second
const long long inf = 2e9 + 7;
const int N = 4e5 + 101;

void solve(){     
    int n,m;
    cin >> n >> m;
    int a[n + 1];
    a[0] = 0;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    vector <int> dp(n + 1,-inf);
    dp[0] = 0;
    for(int i = 0; i <= n; i++){
        for(int j = 0; j < i; j++){
            if(dp[j] < 0) continue;
            int x;
            if(m == 0) x = inf;
            else x = ((a[i] - a[j]) + m - 1) / m;
            if(a[j] >= a[i] || (i - j) >= x){
                if(dp[i] < dp[j] + 1){
                    dp[i] = dp[j] + 1;
                }
            }
        }
    }
    int mx = 0;
    if(dp[n] == -inf) dp[n] = 0;
    cout << n - dp[n];
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    //freopen("promote.in", "r", stdin);
    //freopen("promote.out", "w", stdout);
    int t = 1;
    while(t--){
     	solve();
    }
}

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