Submission #879394

#	Time	Username	Problem	Language	Result	Execution time	Memory
879394		Akshat369	Studentsko (COCI14_studentsko)	C++17	100 / 100	2 ms	612 KiB

studentsko

#include <bits/stdc++.h>

using namespace std;
#define int long long
#define INF (int)1e18
#define endl '\n'
const int mod = 1000 * 1000 * 1000 + 7;
const int N = 100005;
#define f first
#define s second

mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

void Solve() {
    int n; cin>>n;
    int k; cin>>k;
    vector<pair<int,int>> a(n);
    for (int i = 0; i < n; ++i) {
        cin>>a[i].first;
        a[i].second = i;
    }
    sort(a.begin(), a.end());
    vector<int> val(n);
    int cnt = 1;
    for (int i = 0; i < n; ++i) {
        for(int j = i ; j < i +k ; j++){
            val[a[j].second] = cnt;
        }
        cnt++;
        i +=k-1;
    }
   //for (int i = 0; i < n; ++i) {
   //    cout<<val[i]<<" ";
   //}
   //cout<<endl;
    vector<int> ans;
    for (int i = 0; i < n; ++i) {
        auto lb = upper_bound(ans.begin(),ans.end(),val[i]);
        if (lb==ans.end()){
            ans.push_back(val[i]);
        }
        else{
            *lb = val[i];
        }
    }
    cout<<n-(ans.size())<<endl;
}

int32_t main() {
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(false);
    cin.tie(0);

//#ifndef ONLINE_JUDGE
//    freopen("in.txt", "r", stdin);
//    freopen("out.txt", "w", stdout);
//#endif

    int t = 1;
 //   cin >> t;
    for (int i = 1; i <= t; i++) {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
    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