Submission #644077

#	Time	Username	Problem	Language	Result	Execution time	Memory
644077		BackNoob	Studentsko (COCI14_studentsko)	C++14	100 / 100	49 ms	748 KiB

studentsko

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define endl '\n'
#define MASK(i) (1LL << (i))
#define ull unsigned long long
#define ld long double
#define pb push_back
#define all(x) (x).begin() , (x).end()
#define BIT(x , i) ((x >> (i)) & 1)
#define TASK "task"
#define sz(s) (int) (s).size()
 
using namespace std;
const int mxN = 5e5 + 227;
const int inf = 1e9 + 277;
const int mod = 1e9 + 7;
const ll infll = 1e18 + 7;
const int base = 307;
const int LOG = 20;
 
template <typename T1, typename T2> bool minimize(T1 &a, T2 b) {
    if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b) {
    if (a < b) {a = b; return true;} return false;
}
 
int n;
int k;
int a[mxN];
int b[mxN];
int dp[mxN];
map<int, int> mp;
 
void solve()
{
    cin >> n >> k;
    for(int i = 1; i <= n; i++) cin >> a[i];

    for(int i = 1; i <= n; i++) b[i] = a[i];
    sort(b + 1, b + 1 + n);
    
    int cnt = 0;
    for(int i = 1; i <= n; i += k) {
        ++cnt;
        for(int j = i; j < i + k; j++) mp[b[j]] = cnt;
    }        

    for(int i = 1; i <= n; i++) a[i] = mp[a[i]];

    int res = 0;
    for(int i = 1; i <= n; i++) {
        dp[i] = 1;
        for(int j = 1; j < i; j++) if(a[i] >= a[j]) maximize(dp[i], dp[j] + 1);
        maximize(res, dp[i]);
    }

    cout << n - res;
}
 
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

 
    int tc = 1;
    //cin >> tc;
    while(tc--) {
        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