#include <iostream>
#include <vector>
using namespace std;
using ll = long long;
using vll = vector<ll>;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int N;
cin >> N;
vll t(N+1);
t[N] = 0;
for(int i = 0; i < N; i++) cin >> t[i];
reverse(t.begin(), t.end());
vll dp(1+N, 1'000'000'000'000'000'000LL);
dp[0] = 0;
for(int i = 1; i <= N; i++)
{
ll curr_max = 0;
for(int j = i-1; j >= 0; j--)
{
curr_max = max(curr_max, t[j+1]);
dp[i] = min(dp[i], dp[j] + curr_max * i);
}
}
// for(int i = N; i >= 1; i--)
// {
// ll curr_max = 0;
// for(int j = i+1; j <= N+1; j++)
// {
// curr_max = max(curr_max, t[j-1]);
// dp[i] = min(dp[i], dp[j] + curr_max * (N - (i - 1)));
// }
// }
// for(int i = 1; i <= N; i++)
// {
// ll curr_max = 0;
// for(int j = i-1; j >= 0; j--)
// {
// curr_max = max(curr_max, t[j+1]);
// dp[i] = min(dp[i], dp[j] + curr_max * (N - j));
// }
// }
cout << dp[N] << '\n';
}
Compilation message
Discharging.cpp: In function 'int main()':
Discharging.cpp:20:5: error: 'reverse' was not declared in this scope
20 | reverse(t.begin(), t.end());
| ^~~~~~~
