Submission #856318

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
856318	2023-10-03 06:02:26	Cyanmond	Building Bridges (CEOI17_building)	C++17	100 / 100	57 ms	10700 KiB

building

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#include <bits/stdc++.h>
using namespace std;
#define rep(i, l, r) for (int i = (l); i < (r); ++i)
#define per(i, l, r) for (int i = (r - 1); i >= l; --i)
#define ALL(x) (x).begin(), (x).end()
using i64 = long long;
struct CHT {
    // naive
    struct Line {
        i64 a, b;
        i64 eval(i64 x) {
            return a * x + b;
        }
    };
    int n, siz, lg;
    vector<i64> xs;
    vector<Line> data;
    CHT(vector<i64> xs_) {
        xs = xs_;
        n = (int)xs.size();
        lg = 0;
        while ((1 << lg) < n) ++lg;
        siz = 1 << lg;
        while ((int)xs.size() < siz) xs.push_back(1ll << 30);
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40