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PROYECTO EULER
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"""problema 2, fibonacci""" | |
def even_fibo(): | |
a,b,sum=1,1,0 | |
while b<=4000000: | |
a,b=b,a+b | |
if b%2==0: | |
sum+=b | |
return sum | |
"""problema 13, notar q solo se necesitan los primero 11 números de cada línea""" | |
"""se paso la lista de números a un archivo""" | |
def large_sum(): | |
doc=input("ingrese nombre de archivo: ") | |
archivo=open(doc) | |
suma=0 | |
for linea in archivo: | |
num=int(linea[:12]) | |
suma+=num | |
cadena=str(suma) | |
doc.close() | |
return cadena[:10] | |
"""problema 15, programación dinámica""" | |
def lattice_problem(cube): | |
lista=[1]*cube | |
for n in range(cube): | |
for m in range(n): | |
lista[j]=lista[j]+lista[j-1] | |
lista[n]=lista[n-1]*2 | |
return lista[cube-1] | |
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