Submission #713431

#	Time	Username	Problem	Language	Result	Execution time	Memory
713431		Vu_CG_Coder	Gap (APIO16_gap)	C++14	30 / 100	57 ms	2240 KiB

gap

#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <bits/stdc++.h>
#include "gap.h"
#define ll long long
using namespace std;


long long sub1(int n)
{
    long long l = 0 , r = 1e18;
    vector <long long> kq;

    for (int i = 1 ; i <= (n + 1)/2 ; i++)
    {
        ll s , t;
        MinMax(l,r,&s,&t);
        kq.push_back(s);
        kq.push_back(t);
        l = (s) + 1;
        r = (t) - 1;
    }

    sort(kq.begin(),kq.end());
    long long res = 0;

    for (int i = 1 ; i < kq.size() ; i++)
        res = max(res,kq[i] - kq[i - 1]);
    return res;
}

long long sub2(int n)
{
    long long mn , mx , a = 0 , b = 1e18;
    MinMax(a,b,&mn,&mx);
    long long res = 0;

    long long step = (mx - mn + 1 + n)/(n - 1);

    long long l = mn ,  i = step;
    for (i = step ; i <= mx ; i += step)
    {
        long long x , y;
        MinMax(i + 1,min(i+step,mx),&x,&y);
        if (x != -1) 
        {
            res = max(res,x - l);
            l = y;
        }
    }
    
    return res;
}
long long findGap(int t , int n)
{
    if (t == 1) return sub1(n);
    else return sub2(n);
}

Compilation message (stderr)

gap.cpp: In function 'long long int sub1(int)':
gap.cpp:28:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for (int i = 1 ; i < kq.size() ; i++)
      |                      ~~^~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70