Submission #1153369

#	Time	Username	Problem	Language	Result	Execution time	Memory
1153369		toast12	Studentsko (COCI14_studentsko)	C++20	100 / 100	35 ms	584 KiB

studentsko

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

const int INF = 1e9;

int main() {
    int n, k;
    cin >> n >> k;
    map<int, int> m;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        m[a[i]] = i;
    }
    int cur = 0, i = 0;
    for (auto x : m) {
        if (i % k == 0) cur++;
        m[x.first] = cur;
        i++;
    }
    vector<int> v;
    for (int i = 0; i < n; i++) v.push_back(m[a[i]]);
    // longest non-decreasing subsequence
    vector<int> dp(n+1, 1);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < i; j++) {
            if (v[j] <= v[i]) dp[i] = max(dp[i], dp[j]+1);
        }
    }
    int ans = 0;
    for (int i = 0; i < n; i++) ans = max(ans, dp[i]);
    cout << n-ans << '\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