Submission #964790

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
964790	2024-04-17 14:32:41	Chmayank2009	Building Bridges (CEOI17_building)	C++17	100 / 100	82 ms	67288 KiB

building

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#include <iostream>
#include <bits/stdc++.h>
using namespace std;
const long long inf=1e18;
const long long N=1e6+1;
struct Line{
    long long m=0,c=inf;
};
vector<Line>seg(4*1e6+1);
long long calc(Line Li,long long x){
    return Li.m*x+Li.c;
}
void insert(Line Li,long long i=1,long long l=0,long long r=N){
    long long m=l+(r-l)/2;
    long long mid=calc(Li,m)<calc(seg[i],m);
    long long left=calc(Li,l)<calc(seg[i],l);
    if(mid){
        swap(seg[i],Li);
    }
    if(r-l==1) return;
    if(left!=mid){
        insert(Li,2*i,l,m);
    }
    else{
        insert(Li,2*i+1,m,r);
    }
}
long long get(long long x,long long i=1,long long l=0,long long r=N){
    long long m=l+(r-l)/2;
    long long curr=calc(seg[i],x);
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40