Submission #445150

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
445150	2021-07-16 15:48:44	keta_tsimakuridze	Building Bridges (CEOI17_building)	C++14	100 / 100	134 ms	67488 KiB

building

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
#define f first
#define s second
#define ll long long
#define int long long
using namespace std;
const int N=2e6+5,mod=1e9+7;
int t,a[N],b[N],n;
pair<ll,ll>tree[4*N];
ll f(ll k,ll x,ll b){
  return k*x+b;
}
void insert(int u,int l,int r,ll k,ll b) {
  if(l==r) {
    if(f(tree[u].f,l,tree[u].s) > f(k,l,b)) {
      tree[u] = {k,b};
    }
    return;
  }
  int mid = (l+r)/2;
  if(k < tree[u].f) {
    swap(k,tree[u].f);
    swap(b,tree[u].s);
  }
  if(f(k,mid,b) >= f(tree[u].f,mid,tree[u].s)) {
    insert(2*u,l,mid,k,b);
  }
  else {
    insert(2*u+1,mid+1,r,tree[u].f,tree[u].s);
    tree[u] = {k,b};
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

building.cpp:48:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   48 |  main(){
      |  ^~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40