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UVa-10954(Add All)

 

Bismillahir Rahmanir Rahim

///Author: Tanvir Ahmmad
///CSE,Islamic University,Bangladesh

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<string>
#include<cstring>
#include<sstream>
#include<cmath>
#include<cstring>
#include<vector>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<vector>
#include<iterator>
#include <functional> ///sort(arr,arr+n,greater<int>()) for decrement of array
/*every external angle sum=360 degree
  angle find using polygon hand(n) ((n-2)*180)/n*/
///Floor[Log(b)  N] + 1 = the number of digits when any number is represented in base b
using namespace std;
typedef long long ll;

int main()
{
    ll n,num;
    while(cin>>n)
    {
        priority_queue< ll, vector<ll>,greater<ll> >q;
        if(n==0) break;
        while(n--) cin>>num,q.push(num);
        ll cur,ans=0;
        while(q.size()>1)
        {
            cur=q.top();
            q.pop();
            cur+=q.top();
            q.pop();
            ans+=cur;
            q.push(cur);
        }
        cout<<ans<<endl;
    }
    return 0;
}
///Alhamdulillah

Problem Link:https://onlinejudge.org/index.php?option=onlinejudge&Itemid=8&page=show_problem&problem=1895


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