oj.uz

Submission #650224

# Submission time Handle Problem Language Result Execution time Memory
650224 2022-10-13T00:29:12 Z inksamurai Prosjek (COCI18_prosjek) C++17
50 / 50
 1 ms 212 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3yqVz8E ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

signed main(){
_3yqVz8E;
	using ld=long double;
	std::map<vec(ld),int> mp;
	ld ans=0;
	auto dfs=[&](auto self,vec(ld) a)->void{
		sort(a.begin(), a.end());
		if(mp.find(a)!=mp.end())return;
		mp[a]=1;
		if(sz(a)==1){
			ans=max(ans,a[0]);
			return;
		}
		int n=sz(a);
		rep(i,n){
			rng(j,i+1,n){
				vec(ld) na;
				na.pb((a[i]+a[j])/2.0);
				rep(k,n)if(k!=i and k!=j)na.pb(a[k]);
				self(self,na);
			}
		}
	};
	int n;cin>>n;
	vec(ld) a;
	rep(i,n){
		int v;
		cin>>v;
		a.pb(v);
	}
	rep(_,n-1){
		sort(a.begin(), a.end());
		ld v=(a[0]+a[1])/2.0;
		a.erase(a.begin());
		a.erase(a.begin());
		a.pb(v);
	}
	cout<<fixed<<setprecision(6);
	cout<<a[0]<<"\n";
}

Compilation message

prosjek.cpp: In function 'int main()':
prosjek.cpp:25:7: warning: variable 'dfs' set but not used [-Wunused-but-set-variable]
   25 |  auto dfs=[&](auto self,vec(ld) a)->void{
      |       ^~~

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct