Submission #885523

#	Time	Username	Problem	Language	Result	Execution time	Memory
885523		MongHwa	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	22 ms	6868 KiB

triusis

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define ll long long

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n, m;
	cin >> n >> m;

	vector<ll> cand;
	for(int i = 1; i <= n; i++)
	{
		int x;
		cin >> x;

		if(m*i - x >= 0)
			cand.push_back(m*i-x);
	}

	vector<ll> ans;
	for(int i = 0; i < (int)cand.size(); i++)
	{
		int pos = upper_bound(ans.begin(), ans.end(), cand[i]) - ans.begin();
		if(pos == ans.size())
			ans.push_back(cand[i]);
		else
			ans[pos] = cand[i];
	}

	cout << n-ans.size() << '\n';
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:30:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   if(pos == ans.size())
      |      ~~~~^~~~~~~~~~~~~

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