Early Bird - #BD #1.6 #2nd

Problems

Name Solved / Tries Average tries Average tries to solve
A Mirror Images 1/1 (100%) 1.00 1.00
B Luhn's Checksum Algorithm 1/1 (100%) 1.00 1.00
C Dice Game 1/1 (100%) 1.00 1.00
D Prozor 1/1 (100%) 1.00 1.00