cjsmall2.py

import sys
import math

## Promila Agarwal
## April 9, 2016
## Cookies :) problem

def Pogo():
	
    in_f = open('cook.txt', 'r')
    out_f = open('cookie_out.txt', 'w')
	
    num_of_case = int(in_f.readline().rstrip('\n'))
    for i in range(1, num_of_case+1):
        processC(in_f, out_f, i)

def flip(t_str, t_char):
    lin = len(t_str)
    if (t_char == '-'):
        t_char = '+'
    else :
        t_char = '-'
    t_str = [ t_char for i in range(lin) ]
    
    return t_str, t_char
        
def processC(in_f, out_f, case_index):
	in_str = in_f.readline().rstrip('\n').split(" ")
	in_str = ''.join(in_str)
	#print in_str
	lin = len(in_str)
	if (lin < 1):
		num_flips = 0
	else :
		flip_char = in_str[0]
		push_str = in_str[0]
		num_flips = 0
		for i in range(1,lin):
			if (flip_char == in_str[i]):
				push_str.join(in_str[i])
			else :
				pus_str, flip_char = flip(push_str,flip_char)
				push_str.join(in_str[i])
				num_flips +=1
        if (flip_char == '-'):
            push_str, flip_char = flip(push_str,flip_char)
            num_flips +=1	
	str1 = str(num_flips)		
	out_f.write("Case #{}: {}\n".format(case_index, str1))
	
if __name__ == '__main__':    
    Pogo()