lab 4

Exr. 8.1

def reverse_string (word):
limit = len(word) * -1
index = -1
while index >= limit:
letter = word[index]
print letter
index = index – 1
reverse_string(“word”)

PY

 

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Exr. 10.3

def cum_sum(start_list):     my_sum = 0     sum_list = []     for i in range(len(start_list)):         my_sum += start_list[i]         # print my_sum         # the original idea of sum_list[i] = my_sum *does not work*         sum_list.append(my_sum)     return sum_list

def main():     start_list = [1,2,3]     print cum_sum(start_list)

if __name__ == ‘__main__’:         main()

10-3

 

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