Submission #1292186

#	Time	Username	Problem	Language	Result	Execution time	Memory
1292186		blackscreen1	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	20 ms	4168 KiB

triusis

#include <bits//stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<long long, null_type, less<long long>, rb_tree_tag,
             tree_order_statistics_node_update>
    ordered_set;
typedef tree<long long, null_type, less_equal<long long>, rb_tree_tag,
             tree_order_statistics_node_update>
    ordered_multiset;
#define ll long long
#define ld long double
#define iloop(m, h) for (ll i = m; i != h; i += (m < h ? 1 : -1))
#define jloop(m, h) for (auto j = m; j != h; j += (m < h ? 1 : -1))
#define kloop(m, h) for (auto k = m; k != h; k += (m < h ? 1 : -1))
#define lloop(m, h) for (auto l = m; l != h; l += (m < h ? 1 : -1))
#define iloop_(m, h, g) for (auto i = m; i < h; i += g)
#define jloop_(m, h, g) for (auto j = m; j < h; j += g)
#define kloop_(m, h, g) for (auto k = m; k < h; k += g)
#define lloop_(m, h, g) for (auto l = m; l < h; l += g)
#define getchar_unlocked _getchar_nolock // comment before submission
#define pll pair<ll, ll>
#define plll pair<ll, pll>
#define pllll pair<pll, pll>
#define vll vector<ll>
#define qll queue<ll>
#define dll deque<ll>
#define pqll priority_queue<ll>
#define gll greater<ll>
#define INF 1000000000000000
#define MOD1 1000000007
#define MOD2 998244353
#define MOD3 1000000009
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	ll n, m;
	cin >> n >> m;
	ll a[n];
	iloop(0, n) {cin >> a[i]; a[i] -= (i+1)*m; a[i] *= -1;}
	vector<ll> tops;
	tops.push_back(0);
	iloop(0, n) {
		if (tops.back() <= a[i]) tops.push_back(a[i]);
		else *upper_bound(tops.begin(), tops.end(), a[i]) = max(a[i], 0LL);
		// for (auto it : tops) cout << it;
		// cout << "\n";
	}
	cout << n - tops.size() + 1;
}

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