Mr.Barbo's questions

I am trying to create a program to transform a integerinto string:

#include <stdio.h>

char int_to_char(int num){

    int i=0;

    for(int a=num; a!=0; i++) a/=10;

    char s[i+1];

    for(int a=num; i!=0; i--){
        s[i-1] = (a % 10) + 48;
        a/=10;
    }

    return *s;
}

int main(void){
    char a = int_to_char(123);
    printf("%c\n", a);
    return 0;
}

What it does is:

1. Calculate the length of the number.
2. create an array swith that length.
3. fill swith the ascii of each number.

The problem is that it returns only the first digit of the array s, how do I make it return the entire array?

I'm on linux with nasm trying to move registry value axto registry eaxlike this:

mov ebx,1
mov ax,2
mov ecx,ax

but I get the error: prueba.asm:12: error: invalid combination of opcode and operandsand I want to know what exactly is wrong.

I have a doubt regarding the parameters, I have the following program:

#include <iostream>
using namespace std;

int sum(int a[], int b){
    int c=0;
    for(int i=0; i<b; i++){
        c += a[i];
    }
    return c;
}

int main(){
    int a[] = {1,2,3,4,5};
    int b = sizeof(a)/sizeof(int);
    cout << sum(a, b) << endl; //----------
    return 0;
}

the function sumtakes the values ​​inside the array and adds them. what I want to know is if I can call the array by value and not by reference, that is, change sum(a, b)by sum({1,2,3,4,5}, b)without having to create the variable.

I have a folder called Commandwhere I keep a script sumawith the following code:

def suma_1(a, b):
    return a+b

and I want to call it from a script in the same folder as Commandthis way:

import os
print(os.path.pardir)

import Command
print(Command.suma.suma_1(1, 3))

I included osit as an example at the top, because that's the way I want to import it. The problem is that it throws me an error warning that it does not exist sumainCommando

..
Traceback (most recent call last):
  File "c:/Users/joaqu/OneDrive/Escritorio/Informatica/ZZZ_CosasImportantes/Python/Importan/Terminal/prueba3.py", line 5, in <module>
    print(Command.suma.suma_1(1, 3))
AttributeError: module 'Command' has no attribute 'suma'

Can I somehow import it without necessarily typing the script name?

I also tried with from Command import *but it didn't work

I have a variable cuentathat has the value "3!+4!"andenter, I want to find all the ones !(with their respective numbers) that exist to change them by the factorial function of math(math.factorial()), I was going to use re.sub(r"\d+\!")it to find it but I don't know how to say what find, let's call it x, I perform the operation factorial(eval(x[0:len(x-1)]))so that it returns cuenta = 6+24.

I was trying to use something like:

re.sub(x=r"\d+\!", factorial(eval(x[0:len(x)-1])), cuenta)

where in x I save what was found and replace it with the factorial only of the number, but it won't let me.

any idea what i can do?

I have a polynomial and I want to separate it into terms. that is, having the polynomial: "3x^2+x(2-4)-1"I want to separate it into: 3x^2, +x(2-4)and -1. For that I have to separate it by the +and -that it finds except those that are inside the parentheses.

I tried to use the following statement: re.split("[\+|\-][^[\(.*[\+|\-].*\)]]", poly)to separate it but it didn't work.

My question is: can it be done with regex or is there a python module that can do this.

The thing is, I'm creating a window. This is the code for one of the buttons:

self.btn51 = tkinter.Button(master, text="0", command = self.printBut0)
self.btn51.place(x=180, y=380, width=120, height=40)
self.btn51.configure(font=("Caviar_Dreams", "15"))

What they do is: when I press the button it prints the digit "0" in an Entry. And this is the function that is called by the button:

def printBut0(self):
    self.txtCalc.insert(len(self.txtCalc.get()),"0")

The thing is that I repeat the function many times because there are several buttons with that function, but they print different digits, can I somehow make one for all the buttons?

And I appreciate if you can tell me something that I can improve.