24 lines
600 B
Python
24 lines
600 B
Python
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#! /usr/bin/python3
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# -*- coding: utf-8 -*-
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def carot13(lettre):
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"""retourne la lettre correspondante en rot13, on suppose que lettre est entre a et z"""
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n=ord(lettre)-97
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m=(n+13)%26
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rot=chr(m+97)
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return rot
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def marot13(mot):
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"""retourne le mot correspondant en rot13, on suppose que le mot est composé de lettres entre a et z"""
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out="";
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for lettre in mot:
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out+=carot13(lettre)
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return out
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# test
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print("test rot13")
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print("abcdefghijklmnopqrstuvwxyz")
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print(marot13("abcdefghijklmnopqrstuvwxyz"))
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print(marot13(marot13("abcdefghijklmnopqrstuvwxyz")))
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