tester.py

from itertools import izip
from os import system
from time import time

system("g++ 1253_Cifra_de_cesar.cpp -o 1253")

antes = time() 
system("./1253 <input >output")
depois = time() 
print "Execution time = {0:.5f}".format(depois - antes) 


saida = open("output", "r")
correto = open("c_output", "r")
compare = 0

if compare:
	for i, linhas in enumerate(izip(saida.readlines(), correto.readlines())):
		if linhas[0] != linhas[1]:
			print "Erro encontrado na linha {0}".format(i+1)