Submission #989759

#	Time	Username	Problem	Language	Result	Execution time	Memory
989759		LOLOLO	Studentsko (COCI14_studentsko)	C++17	100 / 100	57 ms	600 KiB

studentsko

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (ll)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 5e3 + 10;
int rk[N], val[N], dp[N];

ll solve() {
    int n, k;
    cin >> n >> k;

    for (int i = 1; i <= n; i++) {
        cin >> val[i];
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            rk[i] += (val[i] > val[j]);
        }
    }

    int mx = 0;
    for (int i = 1; i <= n; i++) {
        dp[i] = 1;
        for (int j = 1; j < i; j++) {
            if (rk[i] / k >= rk[j] / k) {
                dp[i] = max(dp[i], dp[j] + 1);
            }
        }

        mx = max(mx, dp[i]);
    }

    return n - mx;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t = 1;
    //cin >> t;

    while (t--) {
        cout << solve() << '\n';
    }

    return 0;
} 

/*
5 3
2 2 2
2 2 1
1 1 1
2 1 2
1 2 1
*/

• 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