Submission #647235

#	Time	Username	Problem	Language	Result	Execution time	Memory
647235		mr_robot_545	Prosjek (COCI18_prosjek)	C++17	0 / 50	4 ms	596 KiB

prosjek

// i love mancity
#include<bits/stdc++.h>
#include <stack>
#include <vector>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define             endl "\n"
#define             ll long long
#define             f(a) for(int i=0;i<a;i++)
#define             rf(a) for(int i=a-1;i>=0;i--)
#define             w  int t;cin>>t;while(t--)
#define             all(v) v.begin(),v.end()
#define             yes cout<<"YES"<<endl;
#define             no cout<<"NO"<<endl;
#define             prev2pn(x) pow(2,floor(log2(x)))
#define             MR_Robot iostream::sync_with_stdio(false);cin.tie(nullptr); \
                    cout.tie(nullptr);
#define             arrRange(a , l , r) int _##a[(r-l)+1]; int* a= _##a-l;
#define             ordered_set tree<int, null_type,less<int>, \
                    rb_tree_tag,tree_order_statistics_node_update>
using namespace std;
using namespace __gnu_pbds;
int n;
void solve(){
    cin>>n;
    vector<int>v1(n),v2;
    for (int i = 0; i <n ; ++i) {
        cin>>v1[i];
    }
    sort(v1.begin(),v1.end());
    double ans=v1[0];
    for (int i = 1; i <n ; ++i) {
        ans+=v1[i];
        ans/=2.0;

    }
    cout<<fixed<<setprecision(6)<<ans<<endl;
}
int main() {
    MR_Robot
#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#endif
//    w{
    solve();
//    }

    return 0;
}
// QAQGDQAQhdfj

Compilation message (stderr)

prosjek.cpp: In function 'int main()':
prosjek.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen("in.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
prosjek.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen("out.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 50