Submission #647006

#	Time	Username	Problem	Language	Result	Execution time	Memory
647006		danikoynov	Nicelines (RMI20_nicelines)	C++14	31 / 100	149 ms	308 KiB

nicelines

/**
 ____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|

**/

#include<bits/stdc++.h>
#define endl '\n'
#include "nice_lines.h"
using namespace std;



typedef long long ll;
int maxcor = 1e4 + 10;
const long double eps = 1e-9;
vector < long long > cur;
long long x;

void process(long long lf, long long rf)
{
    if (rf - lf <= 1)
        return;
    ///cout << lf << " :: " << rf << endl;
    long double d1 = query(x, lf), d2 = query(x, rf);
    long long mid = (lf + rf) / 2;
    long double md = query(x, mid);

    long double sum = (long double)(rf - lf) / (long double)(mid - lf) * (md - d1);
     ///cout << lf << " " << rf << " " << mid << " " << d1 << " " << md << " " << d2 << " " << sum << endl;
    if (abs(sum - (d2 - d1)) < eps)
    {
        ///cout << "here" << endl;
        return;
    }

    if ((query(x, mid - 1) - md) - (md - query(x, mid + 1)) > eps)
        cur.push_back((round)(mid));
    if (mid > 0)
    {
        process(lf, (floor)(mid));
        process((ceil)(mid), rf);

    }
    else
    {
        process(lf, (ceil)(mid));
        process((floor)(mid), rf);
    }

}

void solve(int subtask_id, int N)
{
    if (N > 3)
        maxcor = 510;
    ///cout << (ceil)(2.0) << endl;
    cur.clear();
    x = maxcor * 2;
    long long lf = -maxcor * maxcor, rf = maxcor * maxcor;
    process(lf, rf);
    vector < long long > it1 = cur;

    cur.clear();
    x = maxcor * 2 + 1;
        process(lf, rf);
    vector < long long > it2 = cur;

    sort(it1.begin(), it1.end());
    sort(it2.begin(), it2.end());

    vector < int > a, b;
    for (int i = 0; i < it1.size(); i ++)
    {
        ///cout << it2[i] << " " << it1[i] << endl;
        a.push_back((round)(it2[i] - it1[i]));
        b.push_back((round)(it2[i] - x * (it2[i] - it1[i])));
    }

    the_lines_are(a, b);


}

Compilation message (stderr)

nicelines.cpp: In function 'void solve(int, int)':
nicelines.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |     for (int i = 0; i < it1.size(); i ++)
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 13 / 13
• Subtask 3: 7 / 7
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 27