Submission #1165631

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1165631	2025-03-12 06:53:54	spycoderyt	Feast (NOI19_feast)	C++20	28 / 100	1095 ms	12140 KiB

feast

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#include <bits/stdc++.h>
#define int long long
using namespace std;
/*
instead of enforcing K, we find the lambda that produces K, then just do cost + lambda * K
*/
const int N = 3e5+5;
int a[N],dp[N][2][2];
int32_t main() {
    int n,k;
    cin >> n >> k;
    for(int i = 1;i<=n;i++)cin>>a[i];
    for(int j = 1;j<=k;j++) {
        for(int i = 1;i<=n;i++) {
            dp[i][j][0] = max(dp[i-1][j][0],dp[i-1][j][1]);
            dp[i][j][1] = max(dp[i-1][j-1][0] + a[i], dp[i-1][j][1] + a[i]);
            // cerr << i << " " << j << " " << dp[i][j][0] << " " << dp[i][j][1]<<"\n";
        }
    }
    cout << max(dp[n][k][0],dp[n][k][1]);
}
 
 
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