Value of memory changed without permission

Question

I have an array with 2 dimensions and when I print the data of the array the first time, the date is printed correctly, but the other times the data of array[last][i] from i = 0

Answer 1

If you have an array declared as having numero elements then the valid range of indices is [0, numero-1].

Thus such loops like this

for (unsigned int i = 0; i <= numero; i++) {

used to access elements of an array with numero elements results in undefined behavior.