Started working on paragraph formatter.

other/paragraphFormatting.py

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+
+def extraSpace(S, M, i, j):
+    """
+    Computes the number of extra characters at the end of
+    the line.
+    Between each word there is only once space.
+
+    :param S: List of words
+    :param M: Max length of line
+    :param i: start word index
+    :param j: end word index
+    """
+    extraSpaces = M - j + i
+    for x in range(i, j + 1):
+        extraSpaces -= len(S[x])
+    return extraSpaces
+
+
+def badnessLine(S, M, i, j):
+    """
+    Computes Line badness. This is the number of
+    extra spaces or infinity if the length exceeds M
+
+    :param S: List of words
+    :param M: Max length of line
+    :param i: start word index
+    :param j: end word index
+    """
+    es = extraSpace(S, M, i, j)
+    if es < 0:
+        return float("infinity")
+    return es
+
+
+def minBad(S, M, i):
+    """
+    Computes the badness of a paragraph as the
+    badness of the worst line in the paragraph not
+    including the last line.
+
+    *this is recursive
+
+    :param S: List of words
+    :param M: Max length of line
+    :param i: start word index
+    """
+    if len(S) == 0:
+        return 0
+
+    # Calculate the current line's badness
+    curBad = 0
+
+    k = i
+    while curBad > badnessLine(S, M, i, k):
+        curBad = badnessLine(S, M, i, k)
+        k = k + 1
+
+    return max(curBad, badnessLine(S, M, k))
+
+
+
+def minBadDynamic(S, M):
+    """
+    Write a procedure minBadDynamic that implements
+    the function mb' using dynamic program-
+    ming. It should take only two parameters: S and M
+
+    :param S: List of words
+    :param M: Max length of line
+    """
+    pass
+
+
+def minBadDynamicChoice(S, M):
+    """
+    Write a procedure minBadDynamicChoice that implements
+    the function mb 0 using dynamic
+    programming. In addition to returning mb(S, M ), it
+    should also return the choices made
+
+    :param S: List of words
+    :param M: Max length of line
+    """
+    pass
+
+
+def printParagraph(S, M):
+    """
+    which takes two parameters: S and M that displays the words in S on
+    the screen using the choices of minBadDynamicChoice.
+
+    What is the asymptotic running time of your
+    algorithm?
+
+    :param S: List of words
+    :param M: Max length of line
+    """
+    pass