oj.uz

Submission #108443

# Submission time Handle Problem Language Result Execution time Memory
108443 2019-04-29T15:33:06 Z Frankenween K blocks (IZhO14_blocks) C++17
100 / 100
 375 ms 83744 KB 
#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>

#define ull unsigned long long
#define pll pair<ll, ll>
#define mp make_pair
#define ll long long
#define pb push_back
#define deb(x) cout << #x << " = " << x << endl
#define all(x) x.begin(), x.end()
#define ld long double
const ll mod1 = (ll)1e9 + 7;
const ll mod2 = (ll)1e9 + 9;
const ll BASE = 47;
const ll inf = (ll)1e18;
const long double e = 2.718281828459;
const long double pi = 3.141592653;
const ld EPS = 1e-9;


using namespace std;


template <class T>
istream& operator>>(istream &in, vector<T> &arr) {
    for (T &cnt : arr) {
        in >> cnt;
    }
    return in;
};


struct holder {
    ll mx, val, st_min;
};


struct cool_stack {
    vector<holder> st;

    void push(ll val, ll dp) {
        ll min_dp = dp;
        while (!st.empty() and st.back().mx <= val) {
            min_dp = min(min_dp, st.back().val);
            st.pop_back();
        }
        ll minimal = inf;
        if (!st.empty()) {
            minimal = st.back().st_min;
        }
        st.pb({val, min_dp, min(minimal, min_dp + val)});
    }

    ll get() {
        if (st.empty()) {
            return inf;
        }
        return st.back().st_min;
    }

    void pop() {
        if (!st.empty()) {
            st.pop_back();
        }
    }
};


void solve() {
    ll n, k;
    cin >> n >> k;
    vector<ll> arr(n + 1);
    for (int i = 1; i <= n; i++) {
        cin >> arr[i];
    }
    vector<vector<ll>> dp(k + 1, vector<ll>(n + 1, inf));
    dp[0][0] = 0;
    for (int b = 1; b <= k; b++) {
        cool_stack helper;
        for (int i = 1; i <= n; i++) {
            helper.push(arr[i], dp[b - 1][i - 1]);
            dp[b][i] = helper.get();
        }
    }
    cout << dp[k][n];
}


int main() {
#ifndef LOCAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
#else
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    cout.precision(30);
    ll seed = time(0);
    //cerr << "Seed: " << seed << "\n";
    srand(seed);
    solve();
    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 428 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 256 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2660 KB Output is correct
2 Correct 10 ms 2048 KB Output is correct
3 Correct 15 ms 4096 KB Output is correct
4 Correct 77 ms 28160 KB Output is correct
5 Correct 219 ms 81912 KB Output is correct
6 Correct 22 ms 5752 KB Output is correct
7 Correct 108 ms 38776 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 29 ms 8468 KB Output is correct
15 Correct 6 ms 768 KB Output is correct
16 Correct 10 ms 2560 KB Output is correct
17 Correct 8 ms 2048 KB Output is correct
18 Correct 19 ms 4096 KB Output is correct
19 Correct 94 ms 28280 KB Output is correct
20 Correct 254 ms 81912 KB Output is correct
21 Correct 21 ms 5760 KB Output is correct
22 Correct 124 ms 38672 KB Output is correct
23 Correct 17 ms 4224 KB Output is correct
24 Correct 40 ms 11264 KB Output is correct
25 Correct 250 ms 81984 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 512 KB Output is correct
28 Correct 28 ms 8656 KB Output is correct
29 Correct 4 ms 896 KB Output is correct
30 Correct 11 ms 2780 KB Output is correct
31 Correct 8 ms 2468 KB Output is correct
32 Correct 16 ms 4600 KB Output is correct
33 Correct 117 ms 28740 KB Output is correct
34 Correct 375 ms 83744 KB Output is correct
35 Correct 27 ms 7416 KB Output is correct
36 Correct 188 ms 40516 KB Output is correct
37 Correct 10 ms 768 KB Output is correct
38 Correct 24 ms 8448 KB Output is correct
39 Correct 3 ms 512 KB Output is correct
40 Correct 2 ms 384 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 2 ms 256 KB Output is correct