Submission #676487

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
676487	2022-12-31 03:37:31	penguin133	Discharging (NOI20_discharging)	C++17	100 / 100	160 ms	33464 KiB

Discharging

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#include <bits/stdc++.h>
using namespace std;
#define int long long
deque<pair<int, int> > dq;
int f(pair<int, int> x, int y){
  return x.first*y + x.second;
}
long double intersect(int a, int b, int c, int d){
  return (long double)(d-b)/(a-c);
}
void ins(int m , int c){
  while(dq.size() > 1){
    int s = dq.size();
    if(intersect(dq.back().first, dq.back().second,m,c) <= intersect(dq[s-2].first, dq[s-2].second, m,c))dq.pop_back();
    else break;
  }
  dq.push_back(make_pair(m,c));
} 
int query(int x){
  while(dq.size() > 1){
    if(f(dq[0], x) <= f(dq[1], x))dq.pop_front();
    // <= for max dp, >= for min dp
    else break;
  }
  return f(dq[0], x);
}
int dp[1000005], A[1000005];
int Pmax[1000005];
main(){
 
 
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Compilation message (stderr)

Discharging.cpp:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   30 | main(){
      | ^~~~

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