Problem:

Given weight of N number of people, find number of people whose weight is above average weight

**Input Format:**

**Output Format:**

Number of people whose weight is above average

**Constraints:**

none

Sample Input

5 42 50 54 58 46

Sample Output:

2

2

Explanations:

Average is 50 and only 54 & 58 are above average, so answer is 2

Average is 50 and only 54 & 58 are above average, so answer is 2

Solution:

@arr=split(" ",$n);

$len=$arr[0];

$first=shift(@arr);

$sum=0;

foreach(@arr)

{

$sum+=$_;

}

$av=$sum/$n;

@arr=sort{$a<=>$b}(@arr);

$count=0;

for($j=$n-1;$j>=0;$j--)

{

if($arr[$j]>$av)

{

$count++;

}

else

{

last;

}

}

print "$count";

Tips:

Shift is used to take out first element of array

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