Submission #88785

#	Time	Username	Problem	Language	Result	Execution time	Memory
88785		tushar_2658	Studentsko (COCI14_studentsko)	C++14	100 / 100	10 ms	1564 KiB

studentsko

#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
#define file freopen("in.txt", "r", stdin);
#define pii pair<int,int>
#define pb push_back
#define all(v) v.begin(), v.end()
#define keepunique(v)   (v).erase(unique(all(v)),v.end())
#define fastread ios_base::sync_with_stdio(false);cin.tie(NULL);

const int maxn = 5005;
ll inf = 1e17;
map<ll, ll>mark;
ll arr[maxn];
vector<ll>vec;
int n, k;
int lis(){
	int ans = 0;
	ll t[n+1];
	t[0] = -inf;
	for(int i=1; i<=n; i++)t[i] = inf;
	for(int i=0; i<n; i++){
		int hi = ans, lo = 0;
		while(lo <= hi){
			int mid = (lo+hi)>>1;
			if(t[mid] <= mark[arr[i]])lo = mid+1;
			else hi = mid-1;
		}
		t[lo]=mark[arr[i]];
		ans = max(ans, lo);
	}
	return ans;
}

int main(){
	//file
	fastread
	cin>>n>>k;
	for(int i=0; i<n; i++){
		cin>>arr[i];
		vec.pb(arr[i]);
	} 
	sort(all(vec));
	int cnt = 0;
	for(int i=0; i<n; i++){
		if(i%k == 0)++cnt;
		mark[vec[i]]=cnt;
	}
	cout<<n-lis()<<endl;
}

• 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