Submission #943616

#	Time	Username	Problem	Language	Result	Execution time	Memory
943616		abcvuitunggio	Nicelines (RMI20_nicelines)	C++17	84.01 / 100	46 ms	692 KiB

nicelines

#include "nice_lines.h"
#include <bits/stdc++.h>
#define ld long double
using namespace std;
const int x=1e5;
const ld eps=1e-9;
vector <int> a,b;
int n;
void dnc(ld l, ld r, ld lo, ld hi){
    ld mid=(l+r)/2,m=query(x,mid);
    if (ceil(l)>floor(r)||a.size()==n)
        return;
    if (abs((lo+hi)/2-m)<eps)
        return;
    if (r-l<1){
        int y=floor(r);
        int B=(y%x+x)%x;
        if (B>10000)
            B-=x;
        int A=(y-B)/x;
        a.push_back(A);
        b.push_back(B);
        return;
    }
    dnc(l,mid,lo,m);
    dnc(mid,r,m,hi);
}
void solve(int subtask_id, int N){
    n=N;
    ld L=-1e9-1e4,R=1e9+1e4+1e-6;
    dnc(L,R,query(x,L),query(x,R));
    the_lines_are(a,b);
}

Compilation message (stderr)

nicelines.cpp: In function 'void dnc(long double, long double, long double, long double)':
nicelines.cpp:11:35: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |     if (ceil(l)>floor(r)||a.size()==n)
      |                           ~~~~~~~~^~~

• Subtask 1: 11 / 11
• Subtask 2: 13 / 13
• Subtask 3: 7 / 7
• Subtask 4: 13.8909043548 / 19
• Subtask 5: 21.022306730300002 / 23
• Subtask 6: 18.0934882272 / 27