C++
#1 247
#2 45
#3 21
#4 15
#5 13
#6 10
#7 9
#8 5
#9 3
#10 2
#11 2
#12 2
#13 2
#14 2
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1