Submission #969019

#	Time	Username	Problem	Language	Result	Execution time	Memory
969019		dosts	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	0 ms	348 KiB

triusis

//Dost SEFEROĞLU
#pragma GCC optimize("O3,unroll-loops,Ofast")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define sp << " " << 
#define vi vector<int>

const int N = 5e2+1,inf = 2e18,MOD = 1e9+7;


void solve() {
    int n,m;
    cin >> n >> m;
    vi a(n+1);
    a[0] = 0;
    for (int i=1;i<=n;i++) cin >> a[i];
    int dp[n+1][2];
    for (int i=1;i<=n;i++) for (int j=0;j<2;j++) dp[i][j] = -inf;
    dp[1][1] = a[1] == m ? 1 : -inf;
    dp[1][0] = 0;
    for (int i=2;i<=n;i++) {
        dp[i][0] = dp[i-1][0];
        for (int j = i-1;j>=1;j--) {
            if (abs(a[i]-a[j]) == m) dp[i][1] = max(dp[i][1],dp[j][1]+1);
            dp[i][0] = max(dp[i][0],dp[j][1]);
            dp[i][0] = max(dp[i][0],dp[j][0]); 
        }
    }
    cout << n-max(0ll,max(dp[n][1],dp[n][0])) << '\n';
}
                
                            
signed main() { 
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    #ifdef Dodi
        freopen("in.txt","r",stdin);
        freopen("out.txt","w",stdout);
    #endif
    int t = 1;
    //cin >> t; 
    while (t --> 0) solve();
}

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