#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(nullptr); cout.tie(nullptr);
int n, k;
cin >> n >> k;
vector<int> a(n + 1);
for(int i = 1; i <= n; ++i) cin >> a[i];
vector<vector<int>> dp(n + 1, vector<int> (k + 1, 1e18));
dp[0][0] = 0;
for(int i = 1; i <= n; ++i){
int mx = 0;
for(int j = i; j >= 1; --j){
if(a[j] > a[i]) break;
mx = max(mx, a[j]);
for(int blk = 1; blk <= k; ++blk){
dp[i][blk] = min(dp[i][blk], dp[j - 1][blk - 1] + mx);
}
}
}
cout << dp[n][k] << "\n";
return 0;
}
