Submission #1006363

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006363		vjudge1	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	0 ms	348 KiB

triusis

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main()
{
    int n,m;
    cin >> n >> m;
    int a[n],t,ans=1;
    for(int i=0; i<n; i++)
    {
        cin >> t;
        a[i]=t-i*m-m;
    }
    vector<int>b;
    vector<int>c;
    for(int i=0; i<n; i++)
    {
        if(a[i]>0)
        {
            ans++;
            continue;
        }
        if(b.size()==0){
            b.push_back(0);
            c.push_back(-a[i]);
            continue;
        }
        b.push_back(int(2e9));
        c.push_back(-a[i]);
    }
    for(int i=0; i<b.size(); i++)
    {
        b[upper_bound(b.begin(),b.end(),a[i])-b.begin()]=c[i];
    }
    for(int i=b.size()-1; i>=0; i--)
    {
        if(b[i]<int(2e9))
        {
            cout << i+ans;
            return 0;
        }
    }
    cout << ans-1;
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:32:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(int i=0; i<b.size(); i++)
      |                  ~^~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37