Submission #466991

#	Time	Username	Problem	Language	Result	Execution time	Memory
466991		AMO5	Discharging (NOI20_discharging)	C++17	0 / 100	1093 ms	15956 KiB

Discharging

#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define ld long double
#define all(x) x.begin(),x.end()
#define sz(x) (int)x.size()
#define dbg if(0)
#define BUG(x) dbg cerr << (#x) << " is " << (x) << endl

const int mxn = (int)1e6+5;
const int64_t inf = 5e18;
//subtask 2

void solve(){
	int n; cin>>n;
	vector<int64_t>a(n); 
	for(auto &x:a)
	{
		cin>>x;
	}
	vector<int64_t>dp(n);
	for(int i=0; i<n; i++){
		dp[i] = inf;
		for(int j=i; j>=0; j--){
			int len = n-j;
			int64_t curr = (int64_t)1*len*(a[i]) + (j>0?dp[j]:(int64_t)0);
			dbg cerr<<i<<" "<<j<<" "<<curr<<"\n";
			dp[i]=min(dp[i],curr);
		}
	}
	cout<<dp.back()<<"\n";
}

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	// int t=1; cin>>t; while(t--)
	solve();
	return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 25
• Subtask 4: 0 / 11
• Subtask 5: 0 / 14
• Subtask 6: 0 / 28