Submission #1084150

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084150		TrinhKhanhDung	Studentsko (COCI14_studentsko)	C++14	100 / 100	120 ms	524 KiB

studentsko

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define sz(x) (int)x.size()
#define ALL(v) v.begin(),v.end()
#define MASK(k) (1LL << (k))
#define BIT(x, i) (((x) >> (i)) & 1)
#define oo (ll)1e18
#define INF (ll)1e9
#define MOD (ll)(998244353)

using namespace std;

template<class T1, class T2>
    bool maximize(T1 &a, T2 b){if(a < b){a = b; return true;} return false;}

template<class T1, class T2>
    bool minimize(T1 &a, T2 b){if(a > b){a = b; return true;} return false;}

template<class T1, class T2>
    void add(T1 &a, T2 b){a += b; if(a >= MOD) a -= MOD;}

template<class T1, class T2>
    void sub(T1 &a, T2 b){a -= b; if(a < 0) a += MOD;}

template<class T>
    void cps(T &v){sort(ALL(v)); v.resize(unique(ALL(v)) - v.begin());}

void solve(){
    int n; cin >> n;
    int k; cin >> k;
    vector<int> a(n + 3, 0);
    for(int i=1; i<=n; i++){
        cin >> a[i];
    }

    vector<int> rnk(n + 3, 0);
    for(int i=1; i<=n; i++){
        for(int j=1; j<=n; j++){
            if(a[i] > a[j]) rnk[i]++;
        }
    }

    vector<int> dp(n + 3, 0);
    int ans = 0;
    for(int i=1; i<=n; i++){
        dp[i] = 1;
        for(int j=1; j<i; j++){
            if(rnk[i] / k >= rnk[j] / k){
                maximize(dp[i], dp[j] + 1);
            }
        }
        maximize(ans, dp[i]);
    }
    cout << n - ans << '\n';
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    // freopen("flowers.inp", "r", stdin);
    // freopen("flowers.out", "w", stdout);

    int nTest = 1;
//    cin >> nTest;
    while(nTest--)
        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