Submission #396992

#	Time	Username	Problem	Language	Result	Execution time	Memory
396992		mewnian	Studentsko (COCI14_studentsko)	C++14	100 / 100	3 ms	464 KiB

studentsko

#include <bits/stdc++.h>
#define sze(x) (ll)x.size()
#define idx(x, a) get<x>(a)
#define pb push_back
#define fi first
#define se second

using namespace std;

typedef long long ll;

const ll MAXN = 5e3 + 3;
const ll INF = 1e18 + 7;

ll a[MAXN], n, k, b[MAXN], res, lis[MAXN];

int main()
{
    ios_base::sync_with_stdio(0); cout.tie(0);
    #ifdef OFFLINE
    freopen("input.inp", "r", stdin);
    #endif
    cin >> n >> k;
    for (ll i = 1; i <= n; ++i) { cin >> a[i]; b[i] = a[i]; }
    sort(b + 1, b + n + 1); a[0] = -INF;
    for (ll i = 1; i <= n; ++i) a[i] = (lower_bound(b + 1, b + n + 1, a[i]) - b - 1) / k;
    fill(lis, lis + n + 1, INF); lis[0] = -INF;
    for (ll i = 1; i <= n; ++i)
    {
        ll r = upper_bound(lis, lis + n + 1, a[i]) - lis;
        res = max(res, r);
        lis[r] = a[i];
    }
    cout << n - res;
}

• 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