Submission #751221

#	Time	Username	Problem	Language	Result	Execution time	Memory
751221		sofija6	Gap (APIO16_gap)	C++14	30 / 100	51 ms	2256 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"

using namespace std;

long long findGap(int T, int N)
{
    if (T==1)
    {
        long long l=0,r=1e18,ans=-1;
        vector<long long> a;
        while (true)
        {
            if (l>r || a.size()==N)
                break;
            long long curl,curr;
            MinMax(l,r,&curl,&curr);
            if (curl==-1)
                break;
            a.push_back(curl);
            if (curr!=curl)
                a.push_back(curr);
            l=curl+1;
            r=curr-1;
        }
        sort(a.begin(),a.end());
        for (long long i=1;i<a.size();i++)
            ans=max(ans,a[i]-a[i-1]);
        return ans;
    }
    long long l,r,avg,curl,curr,ans=-1;
    MinMax(0,1e8,&l,&r);
    avg=(r-l+N-2)/(N-1);
    vector<long long> a;
    while (true)
    {
        if (l>r)
            break;
        MinMax(l,l+avg,&curl,&curr);
        if (curl==-1)
        {
            l+=avg+1;
            continue;
        }
        a.push_back(curl);
        if (curr!=-1)
        {
            a.push_back(curr);
            l=curr+1;
        }
        else
            l+=avg+1;
    }
    for (long long i=1;i<a.size();i++)
        ans=max(ans,a[i]-a[i-1]);
    return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:14:32: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   14 |             if (l>r || a.size()==N)
      |                        ~~~~~~~~^~~
gap.cpp:27:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for (long long i=1;i<a.size();i++)
      |                            ~^~~~~~~~~
gap.cpp:54:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for (long long i=1;i<a.size();i++)
      |                        ~^~~~~~~~~

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