A.
Nearest Co-Prime Two numbers are relatively prime or co-prime if their greatest common divisor is 1. In this problem,... |
B.
Melencolia I According to Wikipedia, Albrecht Dürer (May 21, 1471 - April 6, 1528) was a German painter, printma... |
C.
GCD and Sum Congratulations! You’ve been hired in “Buggy Software Ltd.” And you’ve been already given your first... |
D.
Pile of Crabs There is a pile of crabs standing on one top of another. There are total N crabs numbered 1 to N. T... |
E.
Betting Business You have opened a new betting business. You have decided that you will accept bets on the upcoming C... |