Submission #501122

#	Time	Username	Problem	Language	Result	Execution time	Memory
501122		Achiv_Gupta	Studentsko (COCI14_studentsko)	C++17	100 / 100	36 ms	588 KiB

studentsko

#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>  
using namespace std;
 
typedef long long ll;
ll MOD = 998244353;
#define fo(i,e) for(ll i = 0; i < e; i++)
#define ln "\n"
#define mp make_pair
#define pb push_back
#define ff first
#define ss second
#define INF 2e9
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
const int maxn = 5001;

void solve(){
    int n,k;cin >> n >> k;
    vector<int> srt, arr;
    unordered_map<int,int> mp;
    fo(i,n){
        int tmep ;
        cin >> tmep;
        arr.pb(tmep);
    }
    srt = arr; 
    sort(srt.begin(), srt.end());
    for(int i = 0 ; i<n ; i+=k) for(int j = 0; j<k; ++j) mp[srt[i+j]] = i;
    fo(i,n){arr[i] = mp[arr[i]];}
    int ans = 1;
    int dp[n];
    dp[0] =1;
    for(int i = 1 ; i<n ; ++i){
        dp[i] = 1;
        for(int j = i-1; j>=0; --j){
            if(arr[j]<=arr[i]) 
                dp[i] = max(dp[i], dp[j]+1);
        }
        ans = max(ans, dp[i]);
    }
    cout << n-ans;
}

int main(){
    fast_cin();
    ll t=1;
    //cin >> t;
    for(int it=1;it<=t;it++) {
        solve();
    }
    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