Submission #285144

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
285144	2020-08-28 11:12:31	3zp	Discharging (NOI20_discharging)	C++14	20 / 100	140 ms	31736 KiB

Discharging

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#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll t[1000009],dp[1000009],Next[1000009],Prev[1000009];
stack<ll> S;
void rem(ll i){
    Next[Prev[i]] = Next[i];
    Prev[Next[i]] = Prev[i];
}
void ad(ll i){
    if(S.size() && t[S.top()] == t[i]) {rem(i); return;}
    while(S.size() >= 2){
        ll j = S.top(); S.pop();
        ll k = S.top();
        if((dp[i+1] - dp[j+1]) * (t[k] - t[i]) <= (dp[i+1] - dp[k+1]) * (t[j] - t[i])){
            rem(j);
            continue;
        }
        S.push(j);
        break;
    }
    S.push(i);
}
ll cnt(ll i, ll x){
    return  x * t[i]+ dp[i+1];
}
main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
 
 
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Compilation message (stderr)

Discharging.cpp:28:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   28 | main(){
      |      ^

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