fork download

copy

#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long int n;
    cin>>n;
 
    int arr[n];
 
    for(long long int i =0; i <n; i++)
     cin>>arr[i];
 
     sort(arr, arr+n);
 
     long long int ans=0;
 
     long long int mul = n-1;
 
     for(long long int i=n-1; i>0; i--)
            ans+= (mul--) * arr[i];
 
    long long int  mul2 = n-1;
 
            for(long long int i=0; i<n-1; i++)
           ans= ans - (mul2--)*arr[i];
 
           cout<<ans;
 
    return 0;
}
 

Main.java:1: error: illegal character: '#'
#include<bits/stdc++.h>
^
Main.java:1: error: class, interface, or enum expected
#include<bits/stdc++.h>
        ^
Main.java:3: error: class, interface, or enum expected
int main()
^
Main.java:6: error: class, interface, or enum expected
    cin>>n;
    ^
Main.java:8: error: class, interface, or enum expected
    int arr[n];
    ^
Main.java:10: error: class, interface, or enum expected
    for(long long int i =0; i <n; i++)
    ^
Main.java:10: error: class, interface, or enum expected
    for(long long int i =0; i <n; i++)
                            ^
Main.java:10: error: class, interface, or enum expected
    for(long long int i =0; i <n; i++)
                                  ^
Main.java:13: error: class, interface, or enum expected
     sort(arr, arr+n);
     ^
Main.java:15: error: class, interface, or enum expected
     long long int ans=0;
     ^
Main.java:17: error: class, interface, or enum expected
     long long int mul = n-1;
     ^
Main.java:19: error: class, interface, or enum expected
     for(long long int i=n-1; i>0; i--)
     ^
Main.java:19: error: class, interface, or enum expected
     for(long long int i=n-1; i>0; i--)
                              ^
Main.java:19: error: class, interface, or enum expected
     for(long long int i=n-1; i>0; i--)
                                   ^
Main.java:22: error: class, interface, or enum expected
    long long int  mul2 = n-1;
    ^
Main.java:24: error: class, interface, or enum expected
            for(long long int i=0; i<n-1; i++)
            ^
Main.java:24: error: class, interface, or enum expected
            for(long long int i=0; i<n-1; i++)
                                   ^
Main.java:24: error: class, interface, or enum expected
            for(long long int i=0; i<n-1; i++)
                                          ^
Main.java:27: error: class, interface, or enum expected
           cout<<ans;
           ^
Main.java:29: error: class, interface, or enum expected
    return 0;
    ^
Main.java:30: error: class, interface, or enum expected
}
^
21 errors

Standard output is empty