백준 11399 : ATM

https://www.acmicpc.net/problem/11399

11399번: ATM

#include <iostream>
#include <algorithm>



using namespace std;

int main(){
	int n,pi,sum;
	sum = 0;
	cin >> n;
	int* arr = new int[n];

    for(int i=0 ; i<n; i++){

	    cin >> pi;
    	arr[i] = pi;
      }

    sort(arr,arr+n);

    for(int i = 0; i<n; i++){
	
      for(int j =0; j<=i; j++)
      {
      	sum += arr[j];
      }
    }

    cout << sum;
    delete[] arr;

}