Submission #690878

#	Time	Username	Problem	Language	Result	Execution time	Memory
690878		saayan007	Discharging (NOI20_discharging)	C++17	36 / 100	1092 ms	15948 KiB

Discharging

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

using ll = long long;
using pi = pair<int, int>;
using pl = pair<long long, long long>;
using vi = vector<int>;
using vl = vector<long long>;
using vpi = vector<pair<int, int>>;
using vpl = vector<pair<long long, long long>>;

#define fur(i, a, b) for(ll i = a; i <= (ll)b; ++i)
#define ruf(i, a, b) for(ll i = a; i >= (ll)b; --i)
#define fr first 
#define sc second
#define mp make_pair
#define pb emplace_back
#define nl "\n"
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()

const ll inf = 1e16L;
int main() 
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    ll n;
    cin >> n;

    ll t[n + 1];
    fur(i, 1, n)
        cin >> t[i];

    ll dp[n + 1];
    dp[0] = 0;
    fur(i, 1, n) {
        dp[i] = inf;
        ll mx = t[i];
        ruf(j, i, 1) {
            mx = max(mx, t[j]);
            dp[i] = min(dp[i], dp[j - 1] + mx * (n - j + 1));
        }
    }

    cout << dp[n] << nl;
}

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