#include<bits/stdc++.h>
#define int long long
#define ss second
#define ff first
#define pb push_back
const int mxn=30005;
using namespace std;
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n,k;
cin>>n>>k;
int a[n+5];
for(int i=1; i<=n; i++) {
cin>>a[i];
}
int dp[n+5][k+5];
for(int i=0; i<=n; i++) {
for(int j=0; j<=k; j++){
dp[i][j]=1e18;
}
}
dp[0][0]=0;
for(int r=1; r<=n; r++) {
int mx=0;
for(int l=r;l>=1; l--) {
mx=max(mx,a[l]);
for(int i=1; i<=k; i++) {
dp[r][i]=min(dp[r][i],dp[l-1][i-1]+mx);
}
}
}
cout<<dp[n][k];
}
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