Problem:
Score : 200 points

Problem Statement

Snuke has N sticks.
The length of the i-th stick is l_i.

Snuke is making a snake toy by joining K of the sticks together.

The length of the toy is represented by the sum of the individual sticks that compose it.
Find the maximum possible length of the toy.

Constraints

1 \leq K \leq N \leq 50

1 \leq l_i \leq 50

l_i is an integer.

Input

Input is given from Standard Input in the following format:

N K
l_1 l_2 l_3 ... l_{N}

Output

Print the answer.

Sample Input 1

5 3
1 2 3 4 5

Sample Output 1

12

You can make a toy of length 12 by joining the sticks of lengths 3, 4 and 5, which is the maximum possible length.

Sample Input 2

15 14
50 26 27 21 41 7 42 35 7 5 5 36 39 1 45

Sample Output 2

386

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>

int main(void){
	int n;
	int k;
	int l[50];
	int max = 0;
	
	scanf("%d %d",&n,&k);
	for(int i = 0;i<n;i++) scanf("%d",&l[i]);
	
	for(int i = 1;i<n;i++){	
		int j = i;
		while(j>=1 && l[j-1] > l[j]){
			int temp = l[j];
			l[j] = l[j-1];
			l[j-1] = temp;
			j--;
		}
	}

	for(int i = n;i>n-k-1;i--){
		max+=l[i];
	}
	printf("%d\n",max);
}