Question

Using python3: - return the location of the first occurrence of value in list lst. Returns...

Using python3:

- return the location of the first occurrence of value in list lst. Returns -1 if value is not in lst.

FindVal(lst, value)

- return a count of occurrence of value in list lst.

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Answer #1 
def FindVal(lst, value):
    index = -1
    # Looping through each index
    for i in range(len(lst)):
        # Checking value at index i is value
        if(lst[i] == value):
            # seeing i to index
            index = i
            break
    # Returning index value
    return index

# Testing
print(FindVal([4,2,1,3,5], 1))
print(FindVal([4,2,1,3,1,5], 1))
print(FindVal([4,2,3,5], 1))

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