Submission #750561

#	Time	Username	Problem	Language	Result	Execution time	Memory
750561		airths	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	26 ms	5956 KiB

triusis

/*
 * 
 * 	^v^
 * 
 */
#include <iostream>
#include <string>
#include <cmath>
#include <vector>
#include <iomanip>
#include <map>
#include <numeric>
#include <functional>
#include <algorithm>
#include <set>
#include <queue>
#include <climits>
#include <cstdlib>
#include <chrono>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
// #define ordered_set tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update>
#define iamtefu ios_base::sync_with_stdio(false); cin.tie(0);
#define ll long long int
#define ld long double
#define fl(i,a,n) for (ll i(a); i<n; i++)
#define rfl(i,a,n) for (ll i(n-1); i>=a; i--)
#define tt int tt; cin>>tt; for(;tt--;)
template<typename F, typename S>
ostream &operator<<(ostream& os, const pair<F, S>& p){
	return os << '{' << p.first << ',' << p.second << '}';
}
template<typename T>
ostream &operator<<(ostream& os, const vector<T>& v){
	for (auto &x: v){
		os << x << ' ';
	}
	os << '\n';
	return os;
}
template<typename T>
ostream &operator<<(ostream& os, const set<T>& v){
	for (auto &x: v){
		os << x << ' ';
	}
	os << '\n';
	return os;
}
template<typename K, typename V>
ostream &operator<<(ostream& os, const map<K, V> &mp){
	os << '{';
	for (auto [x, y]:mp){
		os << x << ": " << y <<' ';
	}
	return os << "}\n";
}
ll gcd(ll a, ll b){
	if (b==0){
		return a;
	}
	return gcd(b, a%b);
}
ll pw(ll a, ll b, ll m){
	ll res=1;
	a%=m;
	while (b){
		if (b&1){
			res=(res*a)%m;
		}
		a=(a*a)%m;
		b/=2;
	}
	return res;
}
void scn(){
	ll n, m; cin>>n>>m;
	vector <ll> a(n);
	fl(i,0,n){
		cin>>a[i];
	}
	vector <ll> dp;
	fl(i,0,n){
		if (a[i]<=m*(i+1)){
			ll jk = m*(i+1)-a[i];
			ll huh = upper_bound(dp.begin(), dp.end(), jk)-dp.begin();
			if (huh==dp.size()){
				dp.push_back(jk);
			} else {
				dp[huh]=jk;
			}
		}
	}
	cout<<n-dp.size()<<'\n';

	// not necessarily distinct
}
int main(){
	iamtefu;
#if defined(airths)
	auto t1=chrono::high_resolution_clock::now();
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#else
	//
#endif
	// tt
	{
		scn();
	}
#if defined(airths)
	auto t2=chrono::high_resolution_clock::now();
	ld ti=chrono::duration_cast<chrono::nanoseconds>(t2-t1).count();
	ti*=1e-6;
	cerr<<"Time: "<<setprecision(12)<<ti;
	cerr<<"ms\n";
#endif
	return 0;
}

Compilation message (stderr)

triusis.cpp: In function 'void scn()':
triusis.cpp:88:11: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |    if (huh==dp.size()){
      |        ~~~^~~~~~~~~~~

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