2015-03-10 10:41:10 +01:00
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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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TP AP1
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Licence SESI 1ère année
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Univ. Lille 1
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analyse_tris.py
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TP4 - Evaluation empirique des tris
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2015-03-10 10:41:29 +01:00
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http://www.fil.univ-lille1.fr/~L1S2API/CoursTP/tp4_tri.html
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2015-03-10 10:41:10 +01:00
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"""
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__author__ = 'PREUD\'HOMME Geoffrey & BEAUSSART Jean-loup'
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__date_creation__ = 'Tue, 10 Mar 2015 10:26:41 +0100'
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2015-03-10 10:50:42 +01:00
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from random import randint, shuffle
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2015-03-10 10:58:34 +01:00
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2015-03-10 10:50:42 +01:00
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def partie(nom):
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print('\n', nom, '=' * len(nom), sep='\n')
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def section(nom):
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print('\n', nom, '-' * len(nom), sep='\n')
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def question(numero):
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print('\n***', 'Question', numero, '***')
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2015-03-10 10:42:19 +01:00
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partie("Prérequis")
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:42:19 +01:00
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partie("Travail à réaliser")
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:42:19 +01:00
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section("Préliminaires")
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(1)
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2015-03-10 10:52:14 +01:00
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2015-03-10 10:59:04 +01:00
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def liste_croissante(n):
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"""
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int -> list(int), construit la liste des entiers compris entre 0 et n-1, rangés dans l'ordre croissant
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CU: n est un entier positif
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"""
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assert(type(n)==int and n>=0)
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return [i for i in range(n)]
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2015-03-10 10:58:34 +01:00
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question(2)
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2015-03-10 10:52:14 +01:00
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2015-03-10 10:59:04 +01:00
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def liste_decroissante(n):
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"""
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int -> list(int), construit la liste des entiers compris entre 0 et n-1, rangés dans l'ordre décroissant
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CU: n est un entier positif
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"""
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assert(type(n)==int and n>=0)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:59:04 +01:00
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return [i for i in range(n-1, 0, -1)]
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2015-03-10 10:41:10 +01:00
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2015-03-10 11:01:54 +01:00
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question(3)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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def liste_alea(n, a, b):
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2015-03-10 10:52:14 +01:00
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"""
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int, int, int → list
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2015-03-10 10:54:12 +01:00
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Renvoie une liste d’entiers, qui construit une liste de longueur n les entiers choisis au hasard
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compris entre a et b.
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2015-03-10 10:52:14 +01:00
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"""
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res = []
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for i in range(n):
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res.append(randint(a, b))
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return res
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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section("Compter les comparaisons")
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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compteur = 0
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def comp(x, y):
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"""
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parametres
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x , y de même type et comparables
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valeur renvoyee : int
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-1 si x<y
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0 si x==y
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1 si x>y
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action : incrémente le compteur
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CU : aucune
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"""
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global compteur
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compteur = compteur + 1
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if x < y:
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return -1
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elif x == y:
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return 0
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else:
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return 1
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question(1)
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question(2)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:42:19 +01:00
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partie("Analyse du tri par sélection")
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(1)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(2)
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2015-03-10 10:41:10 +01:00
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partie("Analyse du tri par insertion")
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2015-03-10 10:58:34 +01:00
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question(1)
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2015-03-10 10:41:10 +01:00
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section("Dans le meilleur des cas")
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2015-03-10 10:58:34 +01:00
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question(1)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(2)
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2015-03-10 10:41:10 +01:00
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section("Dans le pire des cas")
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2015-03-10 10:58:34 +01:00
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question(1)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(2)
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2015-03-10 10:41:10 +01:00
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section("En moyenne")
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2015-03-10 10:58:34 +01:00
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question(1)
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question(2)
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question(3)
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question(4)
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2015-03-10 10:41:10 +01:00
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2015-03-10 10:58:34 +01:00
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question(5)
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2015-03-10 10:41:10 +01:00
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section("Avec Gnuplot")
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2015-03-10 10:58:34 +01:00
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question(1)
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