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I need to do a function that counts how many times a number appears in a matrix, example:
ocorrencias(9,[[9,7,6,9,8,8]])
Must return 2
My code:
def ocorrencias(numero,matriz):
cont = 0
for elemento in matriz:
if elemento == num:
cont += 1
return cont
I am getting an error giving error when there is more than one list in the matrix.
Marcos, you’re almost there. I don’t want to solve your exercise for you and harm your learning, but the answer to your problem lies in your own question. When you have more than one list in the matrix, each "element" of your matrix is a list. You first need to iterate each of the lists and then, for each list, you need to iterate each element. That is, you need two nested loops to solve your problem.
– Anthony Accioly
Got it here! Brigadeo
– Marcos
Mark, feel free to post your own reply.
– Anthony Accioly
Post your answer that in sequence we will post optimized versions.
– Augusto Vasques