Getting WA on two test cases

#1

code -> https://ide.codingblocks.com/s/305207

code2-> https://ide.codingblocks.com/s/305209

my both codes are not working please tell me the error in both of my codes.

#2


I have edited one of your code and it is working fine.Your logic is correct,Just use long long int instead of int.
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Thanks