#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>

//EE 312 class code
//command line arguments
//2-D array of characters as array of strings
//simple malloc statement

int main(int argc, char *argv[]) {

    printf("Hello, World!\n");
    printf("change2\n");

    for (int i = 0; i < argc; i++)
       printf("%d  %s\n", i, argv[i]);

    printf("------------\n\n");

    char *stuff[10];
    int numRows = 3;
    int numCols = 5;

    stuff[0] = "agvnf";
    stuff[1] = "jfjQl";
    stuff[2] = "sdaf6";

    for (int i = 0; i < numRows; i++)
      printf("%d  %s\n", i, stuff[i]);

    bool found = false;
    int row = 0;
    int col = 0;

    while (!found && row < numRows) {
        col = 0;
        while (!found && col < numCols) {
            if (stuff[row][col] == 'Q') {
                found = true;
            }
            else
                col++;
        }

        if (!found)
           row++;
    }

    if (found)
        printf("found at %d %d\n", row, col);
    else
        printf("not found\n");

    printf("------------\n\n");

    for (int i = 0; i < numRows; i++) {
        for (int j = 0; j < numCols; j++)
           printf("%c", stuff[i][j]);
        printf("\n");
    }

    printf("------------\n\n");

    char *foo;
    foo = (char*) malloc(12 * sizeof(char)); //allocate 12 bytes of memory and cast to char *

    strcpy(foo,"hey there ?");
    printf ("%s\n", foo);

    stuff[0] =  foo;
    printf("%s\n", stuff[0]);

    if (foo != NULL)
        free(foo); //give back the memory

    printf("------------\n\n");


    return 0;
}