Submission #1312915

#	Time	Username	Problem	Language	Result	Execution time	Memory
1312915		hackstar	LIS (INOI20_lis)	C++20	20 / 100	4094 ms	884 KiB

Main

#include<bits/stdc++.h>
#pragma GCC optimize("Ofast,O3,unroll-loops")

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template <typename T>
using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
template <typename T>
using ordered_multiset = tree<T,null_type,less_equal<T>,rb_tree_tag,tree_order_statistics_node_update>;

#ifdef CM
#include "debug.h"
#else
#define debug(...) 42
#endif

#define pb emplace_back
#define ALL(x) (x).begin(),(x).end()
#define rALL(x) (x).rbegin(),(x).rend()
#define srt(x) sort(ALL(x))
#define rev(x) reverse(ALL(x))
#define rsrt(x) sort(rALL(x))
#define sz(x) (int)(x.size())
#define aura 1e18
#define pii pair<int,int>
void die(string S){puts(S.c_str());exit(0);}

// #define int long long
const int mod=998244353;

int binpow(int a,int b)
{
	int res=1;
	while(b)
	{
		if(b&1)
			res=res*a%mod;
		a=a*a%mod;
		b>>=1;
	}
	return res%mod;
}

int inv(int x)
{
	return binpow(x,mod-2);
}


void solve()
{
	int q;
	cin>>q;
	vector<int>a;
	int n=0;
	while(q--)
	{
		int id,x;
		cin>>id>>x;
		id--;
		a.insert(a.begin()+id,x); n++;
		vector<int>dp;
		for(int i=0;i<n;i++)
		{
			if(dp.empty() || a[i]>dp.back())
				dp.pb(a[i]);
			auto it=lower_bound(ALL(dp),a[i]);
			dp[it-dp.begin()]=a[i];
		}
		cout<<sz(dp)<<'\n';
	}
}


signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int t=1;
	#ifdef CM
		freopen("in.txt","r",stdin);
		freopen("out.txt","w",stdout);
	#endif
	// cin>>t;
	while(t--)
		solve();
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80