Submission #113140

#	Time	Username	Problem	Language	Result	Execution time	Memory
113140		luciocf	Studentsko (COCI14_studentsko)	C++14	100 / 100	5 ms	736 KiB

studentsko

#include <bits/stdc++.h>

using namespace std;

const int maxn = 5e3+10;

int n;
int a[maxn], aux[maxn];

int lis(void)
{
	vector<int> v;

	for (int i = 1; i <= n; i++)
	{
		vector<int>::iterator it = upper_bound(v.begin(), v.end(), a[i]);

		if (it == v.end())
			v.push_back(a[i]);
		else
			*it = a[i];
	}

	return v.size();
}

int main(void)
{
	int k;
	scanf("%d %d", &n, &k);

	for (int i = 1; i <= n; i++)
	{
		scanf("%d", &a[i]);

		aux[i] = a[i];
	}

	sort(aux+1, aux+n+1);

	map<int, int> group;

	for (int i = 1; i <= n; i++)
		group[aux[i]] = (i-1)/k;

	for (int i = 1; i <= n; i++)
		a[i] = group[a[i]];

	printf("%d\n", n-lis());
}

Compilation message (stderr)

studentsko.cpp: In function 'int main()':
studentsko.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
studentsko.cpp:34:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10