& Ball falling from the prime ten times one hundred meters

# Find a prime number 
DEF zhishu (n-): 
    IF n-<= 2: 
        return False 
    IF n-% 2 == 0: 
        return True 
    return True 

for n-in Range (1,100): 
    IF zhishu (n-): 
        Print (n-, End = " ') 
' '' 
topics: a ball free fall from a height of 100 meters, after each landing jumps back half of the original height of the anti-; 
down again, find it at the 10th floor, after a total of how many meters? 10th rebound tall? 
'' ' 
S = 100 
L = 0 
for I in Range (1,11): 
    A = S / (I 2 **) 
    Print (A) 
    L A = L + 2 * 
    IF I == 10: 
        B = A 
n- L = - B +100 
Print (n-)