Submission #523783

#	Time	Username	Problem	Language	Result	Execution time	Memory
523783		tmn2005	K blocks (IZhO14_blocks)	C++17	53 / 100	1075 ms	412 KiB

blocks

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

#define fr first
#define sc second

#define vec vector
#define ret return

#define ins insert
#define mk make_pair
#define pb push_back
#define pii pair<int,int>
#define all(s) s.begin(), s.end()
#define allr(s) s.rbegin(), s.rend()

const int N = 2e5+12, INF = 1e9, mod = 1e9+7;
int a[N], dp[N][101];

main(){
	int n, k, f = 0;
	cin>>n>>k;
	for(int i=1; i<=n; i++){
		cin>>a[i];
		f = max(f, a[i]);
		dp[1][i] = f;
	}
	for(int i=2; i<=k; i++){
		for(int j=i; j<=n; j++){
			int ans = INF, mx = 0;
			for(int l=j; l>=i; l--){
				mx = max(mx, a[l]);
				ans = min(ans, mx + dp[i-1][l-1]);
			}
			dp[i][j] = ans;
		}
	}
//	for(int i=1; i<=k; i++){
//		for(int j=1; j<=n; j++){
//			cout<<dp[i][j]<<" ";
//		}
//		cout<<endl;
//	}
	cout<<dp[k][n]<<endl;

	return 0;
}

Compilation message (stderr)

blocks.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | main(){
      | ^~~~

• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 0 / 47