Finding whether the element of the array is present in the other array and finding the index value

[GK19]

i have 2 arrays
p = -0.20000 1.80000
v = 0.9000 0.30000 1.20000 1.50000 1.80000
I have to compare both the array and finding the whether the element present
in p is equal to the element present in v. It has to check each value.
if its a success then print the value and the index along it.
how to do it? 
Please help



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