Help needed in understanding the mistake (DOR)

help
1

Can anybody help me to understand why pow(base,exponent) function is not working. I just create my own power function then program ran successfully

Here are my solutions :

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2

You can use (int)(pow(base,exponent)+0.5). Then it will work fine.
This is because inbuilt function return double which can give little bit different answer like 4.99999 in place of 5 etc…