Submission #490770

#	Time	Username	Problem	Language	Result	Execution time	Memory
490770		sberens	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	29 ms	5336 KiB

triusis

#include <bits/stdc++.h>

#include <ext/pb_ds/assoc_container.hpp>

using namespace __gnu_pbds;
template<typename K> using hset = gp_hash_table<K, null_type>;
template<typename K, typename V> using hmap = gp_hash_table<K, V>;


using namespace std;

#define all(x) (x).begin(), (x).end()
#define pb push_back
#define eb emplace_back
#define smax(x, y) (x = max(x, y))
#define smin(x, y) (x = min(x, y))

#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define F0R(i, a) FOR(i,0,a)
#define ROF(i, a, b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i, a) ROF(i,0,a)


using ll = long long;
using ld = long double;

template<typename T>
using vv = vector<vector<T>>;

using vi = vector<int>;
using ii = array<int, 2>;
using vii = vector<ii>;
using vvi = vv<int>;

using vll = vector<ll>;
using l2 = array<ll, 2>;
using vl2 = vector<l2>;
using vvll = vv<ll>;

template<typename T>
using minq = priority_queue<T, vector<T>, greater<T>>;
template<typename T>
using maxq = priority_queue<T>;

const ll M = 1000000007;
const ll infll = M * M;


int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vll b(n);
    F0R(i, n) {
        int ai;
        cin >> ai;
        b[i] = (i + 1) * m - ai;
    }
    vll dp(n + 1, infll);
    dp[0] = -infll;
    F0R(i, n) {
        if (b[i] < 0) continue;
        auto it = upper_bound(all(dp), b[i]);
        smin(*it, b[i]);
    }
    cout << n - (lower_bound(all(dp), infll) - dp.begin() - 1) << '\n';
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37