This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
# include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 2;
int n, a[N], k, dp[102][N];
int stk[N], pt, pf[N];
int main(){
cin >> n >> k;
for(int i = 1; i <= n; i ++)
cin >> a[i];
for(int i = 1; i <= n; i ++){
dp[1][i] = max(dp[1][i - 1], a[i]);
}
for(int i = 2; i <= k; i ++){
for(int j = i; j <= n; j ++){
dp[i][j] = 1e9;
int mx = 0;
for(int t = j; t >= i; t --){
mx = max(mx, a[t]);
dp[i][j] = min(dp[i][j], dp[i - 1][t - 1] + mx);
}
}
}
cout << dp[k][n] << endl;
}
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