Submission #528082

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
528082	2022-02-19 07:15:10	sidon	Building Bridges (CEOI17_building)	C++17	100 / 100	60 ms	36648 KiB

building

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#include <bits/stdc++.h>
using namespace std;
#define int int64_t
#define sp << ' ' <<
#define nl << '\n'
const int SZ = 1<<20, INF = 1e16;
struct Line {
  int m = 0, c = INF;
  Line() {}
  int operator()(int x) { return m * x + c; }
};
Line s[SZ<<1], u;
void add(int x, int l, int r) {
  int m = (l + r) / 2;
  if(s[x](m) > u(m)) swap(u, s[x]);
  if(r - l > 1)
    u.m >= s[x].m ? add(2*x, l, m) : add(2*x+1, m, r);
}
const int Z = 1e5+1;
int N, h[Z], w[Z], dp[Z];
signed main() {
  cin.tie(0)->sync_with_stdio(0);
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40