Submission #1009522

#	Time	Username	Problem	Language	Result	Execution time	Memory
1009522		altern23	Stove (JOI18_stove)	C++17	20 / 100	17 ms	68956 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define pii pair<ll,ll>
#define fi first
#define sec second

const ll MOD = 1e9 + 7;
const ll N = 5e3 + 5;
const ll INF = 1e18;

ll dp[N][N];

int32_t main(){
  cin.tie(0)->sync_with_stdio(0);
  int tc = 1;
  // cin >> tc;
  while(tc--){
    ll n,k; cin >> n >> k;
    vector<ll>vec(n+5);
    for(int i=1;i<=n;i++) cin >> vec[i];
    for(int i=1;i<=n;i++){
      for(int j=0;j<=k;j++){
        dp[i][j] = -INF;
      }
    }
    dp[0][0] = 0;
    for(int i=1;i<=n;i++){
      for(int j=0;j<k;j++){
        dp[i][j] = dp[i-1][j];
        if(j) dp[i][j] = max(dp[i-1][j], dp[i-1][j-1] + (vec[i] - vec[i-1] - 1));
      }
    }
    cout << vec[n] - vec[1] + 1 - dp[n][k-1] << endl;
  }
}
/*
1 2 3 4 5
*/

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