<p>Given an array of integers <code>arr</code> and two integers <code>k</code> and <code>threshold</code>, return <em>the number of sub-arrays of size </em><code>k</code><em> and average greater than or equal to </em><code>threshold</code>.</p>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input:</strong> arr = [2,2,2,2,5,5,5,8], k = 3, threshold = 4
<strong>Output:</strong> 3
<strong>Explanation:</strong> Sub-arrays [2,5,5],[5,5,5] and [5,5,8] have averages 4, 5 and 6 respectively. All other sub-arrays of size 3 have averages less than 4 (the threshold).
</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> arr = [11,13,17,23,29,31,7,5,2,3], k = 3, threshold = 5
<strong>Output:</strong> 6
<strong>Explanation:</strong> The first 6 sub-arrays of size 3 have averages greater than 5. Note that averages are not integers.
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>1 &lt;= arr.length &lt;= 10<sup>5</sup></code></li>
	<li><code>1 &lt;= arr[i] &lt;= 10<sup>4</sup></code></li>
	<li><code>1 &lt;= k &lt;= arr.length</code></li>
	<li><code>0 &lt;= threshold &lt;= 10<sup>4</sup></code></li>
</ul>

class Solution:
    def numOfSubarrays(self, arr: List[int], k: int, threshold: int) -> int:

        l =0
        total = 0
        res = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total >=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res
















        l = 0
        total = 0
        res = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total/k>=threshold:
                    res+=1
                total-=arr[l]
                l+=1
        return res












        l = 0
        res = 0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res
            















        l = 0
        total = 0
        res = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total>= threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res















        l=0
        res = 0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                
                    res+=1
                total-=arr[l]
                l+=1
        return res













        res = 0
        l = 0
        total = 0
        for r in range(len(arr)):
            total += arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res

















        res = 0
        total = 0
        l = 0
        for r in range(len(arr)):
            total += arr[r]
            if r-l+1 == k:
                if total >=(r-l+1)*threshold:
                    res+=1
                total -=arr[l]
                l+=1
        return res















        res = 0
        l = 0
        total = 0
        for r in range(len(arr)):
            total += arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res


















        res = 0
        l = 0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1
        return res




















        res = 0
        l = 0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total>=threshold*k:
                    res+=1
                total-=arr[l]
                l+=1  
            
        return res



























        res = 0
        l= 0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                
                if total>=threshold*k:
                    res+=1
                    
                total-=arr[l]
                l+=1
        return res
        






















        res = 0
        l = 0
        s = 0
        for r in range(len(arr)):
            s +=arr[r]
            if r-l+1 == k:
                avg = s/k
                if avg>=threshold:
                    res+=1
                s-=arr[l]
                l+=1
        return res


























        l=0
        res = 0
        s = 0
        for r in range(len(arr)):
            s +=arr[r] 
            if r-l+1 == k:
                if s/k>=threshold:
                    res+=1
                s-=arr[l]
                l+=1
        return res































        l = 0
        s =0
        total = 0
        for r in range(len(arr)):
            total+=arr[r]
            if r-l+1 == k:
                if total/k>=threshold:
                    s+=1
                total-=arr[l]
                l+=1
        return s























        l = 0
        s =0
        total = 0

        for r in range(len(arr)):
            total += arr[r]
            if r-l+1 ==  k:
                if (total/k)>= threshold:
                    s+=1
                total-=arr[l]
                l+=1
        return s





































        l = 0 
        res = 0
        s=0
        for r in range(len(arr)):
            s += arr[r] 
            if r-l+1 == k:
                
                if s/k >= threshold:
                    res+=1
                # l+=1
                s-=arr[l]
                l+=1
        return res


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