Submission #691681

#	Time	Username	Problem	Language	Result	Execution time	Memory
691681		tolbi	Money (IZhO17_money)	C++17	0 / 100	0 ms	212 KiB

money

#pragma optimize("Bismillahirrahmanirrahim")
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█■█
//█─█─█▄─█▄─█─█─█─█
//Allahuekber
//ahmet23 orz...
//Sani buyuk Osman Pasa Plevneden cikmam diyor.
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
#define author tolbi
#include <bits/stdc++.h>
#ifdef LOCAL
	#include "23.h"
#endif
#define int long long
#define endl '\n'
#define vint(x) vector<int> x
#define deci(x) int x;cin>>x;
#define decstr(x) string x;cin>>x;
#define cinarr(x) for (auto &it : x) cin>>it;
#define coutarr(x) for (auto &it : x) cout<<it<<" ";cout<<endl;
#define sortarr(x) sort(x.begin(),x.end())
#define sortrarr(x) sort(x.rbegin(),x.rend())
#define det(x) cout<<"NO\0YES"+x*3<<endl;
#define INF LONG_LONG_MAX
#define rev(x) reverse(x.begin(),x.end());
#define ios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define tol(bi) (1LL<<((int)(bi)))
const int MOD = 1e9+7;
using namespace std;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
int32_t main(){
	ios;
	int t=1;
	int tno = 0;
	if (!t) cin>>t;
	while (t-(tno++)){
		deci(n);
		vint(arr(n));
		cinarr(arr);
		vector<pair<int,int>> segm;
		for (int i = 1; i < n; i++){
			if (arr[i]>arr[i-1]){
				segm.push_back({arr[i-1]-1,arr[i]-1});
			}
		}
		vector<vector<vector<int>>> dp(n,vector<vector<int>>(n,vector<int>(2,-1)));
		auto f = [&](int l, int r, int flag, auto rec)->int{
			if (l>r) return 0ll;
			if (dp[l][r][flag]!=-1) return dp[l][r][flag];
			dp[l][r][flag]=0ll;
			for (int i = 0; i < segm.size(); i++){
				if (!flag && l==segm[i].first && r==segm[i].second) continue;
				if (segm[i].first<l || segm[i].second<l) continue;
				if (segm[i].first>r || segm[i].second>r) continue;
				dp[l][r][flag]=max(dp[l][r][flag],rec(l,segm[i].first,1,rec)+rec(segm[i].first,segm[i].second,0,rec)+rec(segm[i].second,r,1,rec)+1);
			}
			return dp[l][r][flag];
		};
		cout<<n-f(0,n-1,1,f)<<endl;
	}
}

Compilation message (stderr)

money.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
money.cpp: In instantiation of 'main()::<lambda(long long int, long long int, long long int, auto:23)> [with auto:23 = main()::<lambda(long long int, long long int, long long int, auto:23)>]':
money.cpp:61:22:   required from here
money.cpp:53:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |    for (int i = 0; i < segm.size(); i++){
      |                    ~~^~~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55