Submission #971511

#	Time	Username	Problem	Language	Result	Execution time	Memory
971511		batsukh2006	Studentsko (COCI14_studentsko)	C++17	100 / 100	4 ms	6904 KiB

studentsko

#include<iostream>
#include<stdio.h>
#include<math.h>
#include<map>
#include<string>
#include<algorithm>
#include<vector>
#include<string.h>
#include<utility>
#include<set>
#include<cmath>
#include<queue>
#include<deque>
#include<functional>
#include<stack>
#include<limits.h>
#include<iomanip>
#include<unordered_map> 
#include<numeric>
#include<tuple>
#include<bitset>
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;
#define MOD 1000000007
#define int long long
#define ss second
#define ff first
#define endl '\n'
//#define ordered_set tree<pair<int, int>, null_type, less_equal<pair<int, int> >, rb_tree_tag, tree_order_statistics_node_update>
const int mxN=2e5;
vector<int> tree(4*mxN);
int cal(int node, int L, int R, int l, int r){
    if(L>r||R<l) return 0;
    if(L>=l&&R<=r) return tree[node];
    return max(cal(node*2,L,(L+R)/2,l,r),cal(node*2+1,(L+R)/2+1,R,l,r));
}
void up(int node, int L, int R, int p, int v){
    if(L>p||R<p) return;
    if(L==R){
        tree[node]=v;
        return;
    }
    up(node*2,L,(L+R)/2,p,v);
    up(node*2+1,(L+R)/2+1,R,p,v);
    tree[node]=max(tree[node*2],tree[node*2+1]);
}
signed main(){
    // freopen("file.in", "r", stdin);
    // freopen("file.out", "w", stdout);
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n,k; cin>>n>>k;
    vector<pair<int,int> > a(n+1);
    for(int i=1; i<=n; i++){
		cin>>a[i].ff;
		a[i].ss=i;
	}
	vector<int> v(n+1);
    sort(a.begin(),a.end());
    for(int i=1,j=1; i<=n; i++){
    	v[a[i].ss]=j;
    	if(i%k==0) j++;
    }
    int res=0;
    for(int i=1; i<=n; i++){
    	int mx=cal(1,1,n,1,v[i]);
    	up(1,1,n,v[i],mx+1);
    	res=max(res,mx+1);
    }
    cout<<n-res;
    return 0;
}

• 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