There are several ways you can combine coins to reach a target amount:
TARGET: $1.45
DOLLARS 1 1 0 0
HALF DOLLARS 0 0 2 1
QUARTERS 1 1 1 0
DIMES 2 1 1 9
NICKLES 0 2 2 0
PENNIES 0 0 0 5
TARGET: $1.05 DOLLARS 1 0 0 1 HALF DOLLARS 0 1 0 0 QUARTERS 0 2 4 0 DIMES 0 0 0 0 NICKLES 0 1 0 1 PENNIES 5 0 5 0