CIT 590 Makeup Quiz, Spring 2010 | Name ______________________________ |

Tell what each method below does (not how it does it). That is, tell what the result of the function is. If the function does anything in addition to returning a result, also say what that is. 4 points each.

def f1(ints): # ints is a list of integers result = 0 for i in range(0, len(ints)): if ints[i] < result and ints[i] > 0: result = ints[i] return result | Returns zero. |

def f2(ints): # ints is a list of integers result = 100 for i in range(0, len(ints)): if ints[i] < result and ints[i] > 0: result = ints[i] return result | Returns the smallest positive integer in the list less than 100 (or 100, if no such numbers in the list). |

def f3(ints): # ints is a list of integers result = ints for i in range(1, len(result)): result[i] += result[i - 1] return result | 2 points for saying the function returns a list containing the cumulative sums. (No points for saying each location has the previous location added to it.) 2 more points for noticing that the original array is modified. |

def f4(ints): # ints is a list of integers count = 0 for i in range(0, len(ints)): if ints[i] > 100: count += 1 else: return count | 3 points for saying that it counts how many numbers precede the first number <= 100. 1 more point for noticing that it returns None if all the numbers are greater than 100. |

def f5(lst): # lst is a list last = len(lst) - 1 for i in range(0, len(lst)): temp = lst[i] lst[i] = lst[last - i] lst[last - i] = temp return lst | Returns the list unchanged. |