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: Accepted)

#include<stdio.h>
#include<stdlib.h>
main(){
int N,K,*p;
int i,j,temp,sum=0;
scanf("%d",&N);
scanf("%d",&K);
p=(int *) malloc (sizeof(int)*N);

for(i=0;i<N;i++){
scanf("%d",&p[i]);
}
for(i=0;i<N;i++){
for(j=0;j<N-1;j++){
if(p[j]>p[j+1]){
temp=p[j];
p[j]=p[j+1];
p[j+1]=temp;
}
}
}

for(i=0;i<K;i++){
sum+=p[i];
}
printf("%d",sum);return 0;
return 0;
}