How to find the lowest difference between two numbers from the given list in python using loops?-CodePudding

I can't figure out how to make the random number in the list subtract each other than find the smallest difference. I can't use def() , sorted(), return or any import as they are not in the lesson yet.

def findMinDiff(arr, n):
    arr = sorted(arr)
    diff = 10**20
    for i in range(n-1):
        if arr[i 1] - arr[i] < diff:
            diff = arr[i 1] - arr[i]
    return diff
arr = [4, 1, 2, 9, 7, 100, 5, 0, 99, 100]
n = len(arr)
print("The lowest different between two numbers is "   str(findMinDiff(arr, n)))

Sample Output: The lowest different between two numbers is 0.

CodePudding user response：

To find the smallest difference between any two adjacent values in the list you could do this:

arr = [4, 1, 2, 9, 7, 100, 5, 0, 99, 100]

smallest_diff = float('inf')

for x, y in zip(arr, arr[1:]):
    if (diff := abs(x-y)) < smallest_diff:
        smallest_diff = diff
print(smallest_diff)

Output:

CodePudding user response：

Use a nested-loops as you mentioned in tags

min_diff = abs( arr[0] - arr[1] )
for i in range(len(arr)-1):
    for j in range(i 1,len(arr)):
        diff = abs( arr[i] - arr[j] )
        if diff < min_diff:
            min_diff = diff

Thanks to @stuart