| def sum_squares(lst): | |
| """" | |
| This function will take a list of integers. For all entries in the list, the function shall square the integer entry if its index is a | |
| multiple of 3 and will cube the integer entry if its index is a multiple of 4 and not a multiple of 3. The function will not | |
| change the entries in the list whose indexes are not a multiple of 3 or 4. The function shall then return the sum of all entries. | |
| Examples: | |
| For lst = [1,2,3] the output should be 6 | |
| For lst = [] the output should be 0 | |
| For lst = [-1,-5,2,-1,-5] the output should be -126 | |
| """ | |
| result =[] | |
| for i in range(len(lst)): | |
| if i %3 == 0: | |
| result.append(lst[i]**2) | |
| elif i % 4 == 0 and i%3 != 0: | |
| result.append(lst[i]**3) | |
| else: | |
| result.append(lst[i]) | |
| return sum(result) | |