Day: December 26, 2020

So, basically this code is for a Tic Tac Toe game, I'm trying to make a Singleplayer mode where Player 1 inserts a spot number to put his X, and Player 2 uses a random number generating function and assigns his O in a random spot. Everything works fine except, Player 2's random number does not get assigned on the board.

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <time.h>
char choice, choice2, modsel;
int player = 1, winner, end = 0, counter = 0, ran_num;

char arr[3][3] = {
  {'1','2','3'},{'4','5','6'},{'7','8','9'}
};
void numgen(int rannum) {
    srand(time(NULL));
    rannum = 1 + rand() % 9;
    ran_num = rannum;
}
void printarray() {
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            printf("|%c|", arr[i][j]);
        }
        printf("\n");
    }
}
void playingSP() {
    char letter;
    if (player == 1) {
        scanf("%c", &choice2);
        letter = 'x';
    }
    else if (player == 2) {
        numgen(ran_num);
        choice2 = ran_num;
        letter = 'o';
    }
    else {
        printf("wrong entry");
    }

    switch (choice2) {
    case '1': arr[0][0] = letter; break;
    case '2': arr[0][1] = letter; break;
    case '3': arr[0][2] = letter; break;
    case '4': arr[1][0] = letter; break;
    case '5': arr[1][1] = letter; break;
    case '6': arr[1][2] = letter; break;
    case '7': arr[2][0] = letter; break;
    case '8': arr[2][1] = letter; break;
    case '9': arr[2][2] = letter; break;
    }
    counter++;
}
void endgame() {
    for (int i = 0; i < 3; i++)
        if ((arr[i][0] == arr[i][1]) && (arr[i][1] == arr[i][2])) {
            if (arr[i][0] == 'x')
                winner = 1;
            else
                winner = 2;
            end = 1;
            return;
        }
    for (int j = 0; j < 3; j++)
        if ((arr[0][j] == arr[1][j]) && (arr[1][j] == arr[2][j])) {
            if (arr[0][j] == 'x')
                winner = 1;
            else
                winner = 2;
            end = 1;
            return;
        }
    if ((arr[0][0] == arr[1][1]) && (arr[1][1]) == arr[2][2]) {
        if (arr[0][0] == 'x')
            winner = 1;
        else
            winner = 2;
        end = 1;
        return;
    }
    if ((arr[0][2] == arr[1][1]) && (arr[1][1]) == arr[2][0]) {
        if (arr[0][2] == 'x')
            winner = 1;
        else
            winner = 2;
        end = 1;
        return;
    }
    if (counter == 8) {
        winner = 0;
        end = 1;
    }
}
int main()
{
    printarray();
    while (end != 1)
    {
        printf("player %d enter your number:", player);
        playingSP();
        printarray();
        endgame();
        if (player == 1)
            player = 2;
        else
            player = 1;
        playingSP();
    }
    if (winner == 0)
        printf("no winner\n");
    else
        printf("player %d won the game\n", winner);
    return 0;
}

Create a dialog box and add text entry box and colour to the dialog box and text using wxpyton

hi there i have an XML file wich contain some music information in a node and i would like to insert more i would like to add more node on demeand when i do i receive this error HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted. here is my XML structure

?xml version="1.0" encoding="UTF-8" standalone="no"?>
<playlist>
    <trackList>
        <track id="1">
            <location>C:\Music\subfoder\title.mp3</location>
            <creator>2Pac</creator>
            <title>Young Black Male</title>
            <album>2Pacalypse Now</album>
        </track>
        <--I WOULD LIE TO INSERT another node here track id ="2" -->
        </trackList>
        <--IN MANY THINGS I TESTED SOME INSERTED NODE HERE AND IT'S NOT WHAT I WANT-->
</playlist>

i use this code and i cant see what is the problem i have searcher all over internet couldn't any similar problem on forums or stack overflows.

public void addTrack(String playlistName) {
    String filePath = playlistName;
    File xmlFile = new File(filePath);
    DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();//nouvelle instace de Document DocumentBuilderFactory
    DocumentBuilder dBuilder;
    try{dBuilder = dbFactory.newDocumentBuilder();
    Document doc = dBuilder.parse(xmlFile);
    Node root = doc.getFirstChild();
    Node subroot =root.getFirstChild();
    int id = doc.getElementsByTagName("track").getLength()+1;
    subroot.appendChild(createMusicElement(doc, id,playlist.get(key).getLocation(), playlist.get(key).getTrack(), playlist.get(key).getAlbum(),playlist.get(key).getArtist()));
    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    DOMSource source = new DOMSource(doc);
    StreamResult file = new StreamResult(filePath);
    transformer.transform(source, file);
    }catch (Exception e) {
        e.printStackTrace();
    }
}

thanks for your times i really apreciate!