Submission #1009538

#	Time	Username	Problem	Language	Result	Execution time	Memory
1009538		SG2Alok	Stove (JOI18_stove)	C++17	20 / 100	15 ms	23900 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl '\n'
#define hitaf ios_base::sync_with_stdio(false); cin.tie(NULL);
#define fi first
#define se second

const ll MOD = 998244353;
const ll INF = 1e18;

ll n, k, a[100005];

int main(){
    hitaf
    cin >> n >> k;
    
    for(int i = 1; i <= n; i++) cin >> a[i];
    
    vector<vector<ll>> dp(n + 2, vector<ll>(k + 2, -INF));
    for(int i = 0; i <= k; i++) dp[0][i] = 0;
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= k; j++){
            dp[i][j] = dp[i - 1][j];
            if(j != 1) dp[i][j] = max(dp[i][j], dp[i - 1][j - 1] + a[i] - a[i - 1] - 1);
        }
    }
    
    cout << a[n] - a[1] + 1 - dp[n][k] << endl;
}
    

/*
    7 1 2 9 0
*/

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50