Problem:
Score : 200 points

Problem Statement

A shop sells N kinds of fruits, Fruit 1, \ldots, N, at prices of p_1, \ldots, p_N yen per item, respectively. (Yen is the currency of Japan.)

Here, we will choose K kinds of fruits and buy one of each chosen kind. Find the minimum possible total price of those fruits.

Constraints

1 \leq K \leq N \leq 1000

1 \leq p_i \leq 1000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N K
p_1 p_2 \ldots p_N

Output

Print an integer representing the minimum possible total price of fruits.

Sample Input 1

5 3
50 100 80 120 80

Sample Output 1

210

This shop sells Fruit 1, 2, 3, 4, and 5 for 50 yen, 100 yen, 80 yen, 120 yen, and 80 yen, respectively.

The minimum total price for three kinds of fruits is 50 + 80 + 80 = 210 yen when choosing Fruit 1, 3, and 5.

Sample Input 2

1 1
1000

Sample Output 2

1000

Solution in C (GCC 9.2.1) (judge verdict: Wrong Answer)

#include<stdio.h>
void main()
{
  int k,n,total_price=0;
  int price[1000];
  scanf("%d",&n);
  scanf("%d",&k);
  for(int i=0;i<n;i++)
  {
    scanf("%d",&price[i]);
  }
  for (int i = 0; i < n; ++i) 
        {
            for (int j = i + 1; j < n; ++j) 
            {
                if (price[i] > price[j]) 
                {
                    int a = price[i];
                    price[i] = price[j];
                    price[j] = a;
                }
            }
        }

        for(int i=0;i<k;i++)
        {
            total_price=total_price+price[i];
        }
        printf("total_price:%d",total_price);
}