Thread: Swapping positions of random number in Arrays

How to swap the postions of a certain object in Array?
Like this>>>>
http://i235.photobucket.com/albums/e...0/untitled.jpg

i want to make that '!' move but HOW?

Help mi please~~ T-T

What code do you have for this?

well,, to be honest this is the picture taken by my lecturer and he ask me to do this as assignment ......
So , basically i have no idea how to start...
i juz know how to construct an array of random number and print out the array in "%c" format

basically,
I would make an array lets say 10 x 10.
then i would save in each cell #
then i would put ! at [0,0] just to exist.
then i would read (a, b) the new location of !.

just put at the Array[a][b] the ! and at the old A[old_a][old_b] the #..
and print it...

Hey, it is a bit tricky...be carefull to check so as NOT to be out of range of the array, cause then -> Segmentation fault is waiting...

thx Adak!
but well, i feel a bit depressed when programming was come to me.
problems like "hmm, what is the 1st step i shuld do" and "Hmmmm.. how to actually make this move // how to make this become that // and so on~~~~"
yea... kinda like "no idea" and it make my life miserable~
if i fail this course, another 2000 bucks to the univ again.. haiz.. draining my money
i wish there's one pro tutor guiding me on this @_@ as the final exam is COMING!!

Aww, well.. Adak.. im back again... i manage to do the move part done but i couldnt do a 'flip'
..
what i done is trying to make (move=flip) and print out a certain value, example

Code:

/*on top*/
#define FLIP 8
/*at makeMove function*/
if(move=FLIP)
grid[*row][*col]= '%';

and another try i make was
[code]
/*declare a function flip and insert a random number function*/
#define <stdio.h> //top
//then i declare the srand function below the makeMove function
void srand(unsigned seed);
//and next at makeMove function, i declare the grid, flip = printf("%c\n", rand()%45 + 35)

but it didnt work and show only the move part when i run it.
Please hel[p~
and can someone explain more on the break?
my lecturer didnt teach me tis. :X

And thus we see that spoon feeding code only leads to more questions. It's a good bet that if someone cannot come up with the code on their own they also won't be able to understand or use someone else's code.

ah, well perhaps there's online tutoring on programming~ i really couldnt get a clear mind on programming.. even with tons of textbooks i borrowed.. :X
haiz~

well, this is my friend teach me one. but unluckily, my lecturer didnt allow me to use window because he says i only learn begineer things // im still a begineer.

Code:

#include<stdio.h>
#include<conio.h>
#include<windows.h>

/* To specific the coordinate x and coordinate y for text */
void gotoxy(int x, int y)
{
	COORD coord;
 	coord.X = x;
  	coord.Y = y;
 	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}

/* To delay the certain process */
void delay(unsigned int k)
{
	unsigned int z;
	for(z = 0; z <= k; z++)
	{
		gotoxy(0,0);
		printf("");	   	   
	}
}

/* Main Function */
int main()
{
	char c, compare;
	int i,j,x,y, tempi, tempj, step;
	int counter;
	
	/* Define 2 dimensional array */
	char a[6][6] ={ {'a','b','c','d','e','f'},
					{'g','h','i','j','k','l'},
					{'m','n','o','p','q','r'},
					{'a','b','c','d','e','f'},
					{'g','h','i','j','k','l'},
					{'m','n','o','p','q','r'},
					};
					
	i = j = counter = step = 0;
	
	
	for (x=0;x<6;x++)
	{
		for(y=0;y<6;y++)
		{
			gotoxy((y+1)*2,(x+1)*2);
			printf("#");
		}
		printf("\n\n");
	}

	printf("press '1' to move up \n");
	printf("press '2' to move down \n");
	printf("press '3' to move left \n");
	printf("press '4' to move right \n");
	printf("press '5' to open \n");
	printf("press '6' to quit the program \n");
	
	gotoxy(0,20);
	printf("Please key in your selection: ");
	
	gotoxy(28,3);
	printf("You are now at:");
		
	gotoxy(28,4);
	printf("Column    Row");
	gotoxy(30,5);
	printf("0        0");
	gotoxy(28,7);
	printf("STEP");
	gotoxy(30,8);
	printf("0");
		   
	do{
		
		c = getch();
	
		switch (c)
		{
			/* To control the directions */ 
			case '1':
					i--;
					if (i<0)
					{
						i = 0;
					}

					break;
			case '2':
					i++;
					if (i>5)
					{
						i = 5;
					}
					break;
			case '3':
					j--;
					if (j<0)
					{
						j = 0;
					}
					break;
			case '4':
					j++;
					if (j>5)
					{
						j = 5;
					}
					break;	  
			case '5':
									
					if (a[i][j] != ' ' && (tempi != i || tempj != j))
					{
						counter ++;
						gotoxy((j+1)*2,(i+1)*2);
						printf("%c",a[i][j]);
					
						if(counter == 1)
						{
							tempi = i;
							tempj = j;
							compare = a[i][j];
						}	 	 	 	 	 
								
						if (counter == 2)
						{
							step ++;
							gotoxy(30,8);
							printf("%d", step);
							if(a[i][j] == compare)
							{
								gotoxy((j+1)*2,(i+1)*2);
								printf(" ");											
								gotoxy((tempj+1)*2,(tempi+1)*2);
								printf(" ");											
								a[i][j] = ' ';
								a[tempi][tempj] = ' ';
							}
								else
							{
								delay(20000);
								gotoxy((j+1)*2,(i+1)*2);
								printf("#");											
								gotoxy((tempj+1)*2,(tempi+1)*2);
								printf("#");											
								tempi = tempj = -1;
							}
								counter = 0;
						}
					}	
					break; 	   
			default: 
					gotoxy(0,20);
					printf("Please key in your selection: ");
		}
		gotoxy(30,20);
/*	  	  printf ("%c", a[i][j]);*/
		
		gotoxy(30,5);
		printf("%d        %d",i+1, j+1);
		
	}while (c!='6');
	return 0;
}

and he says " did i ever teach u case?? " =_= dang.. strict lecturer T-T

The break command "breaks" the program control, out of the for or do while, or while loop. Just one loop though. If you instructor only wants you using what he's taught you, and he hasn't taught you the break command yet, I wouldn't suggest using it.

Use srand() *ONCE* only, near the top of your program.

You know how to assign a char to the array.

Code:

  for(r=0;r<ROWS;r++) {
    for(c=0;c<COLS;c++) {
      grid[r][c]='#';
    }
  }
  grid[0][0]='!';  
  row=0;  //location of !
  col=0;  //  ditto

All you have to do is generate a random char, and you already posted code for how to do that. Did you get your ASCII chart downloaded yet?

Set your upper limit to 126 and your lower limit to 36. Outside that range, printing up a random char can be very confusing (you might print up the DELETE key or something really odd looking.

Work with that, and see what you can do. If you get stuck, post up just WHAT has you stuck, particularly.

Great news and im feeling happy that im done with the flip part and understand all the code!
this is wad i done [the latest one from me ^^ ]

Code:

#include <stdio.h>

#define ROWS 6
#define COLS 6
#define UP 2
#define RIGHT 3
#define DOWN 4
#define LEFT 5
#define FLIP 6

int main(void) {

int x, y, a, b, row, col, done = 0;
int move;
char puzzle[ROWS][COLS];
char name;

printf("@@@@@@@@@@ WELCOME TO FLIP' EM! @@@@@@@@@@\n\n");

printf("Please enter your name to continue: \n");
scanf("%s", &name);
system("cls");
printf("Good Day, %s!! Now, let's start a new game!\n");


for (x = 0; x < ROWS ; x++) {
	for(y = 0; y < COLS ; y++){
	puzzle[x][y] = '#';
	}
	}
puzzle[0][0] = '!';
row = 0;
col = 0;

while(!done) {
printf("\n\n");

for (x = 0; x < ROWS ; x++) {
	for(y = 0; y < COLS ; y++){
	printf(" %c", puzzle[x][y]);
	}
	printf("\n");
	}


printf("\n Choose a move:\n Press 2 to go UP\n Press 3 to go RIGHT\n Press 4 to go DOWN\n Press 5 to go LEFT\n Press 6 to flip\n Press 0 to quit: \n");

scanf("%d", &move);
system("cls");

(void) getchar();


if(move == 0) /* To enable the player to quit the game*/
break;

puzzle[row][col] = '#'; 

if(move == UP)
--(row);

if(move == RIGHT)
++(col);

if(move == DOWN)
++(row);

if(move == LEFT)
--(col);

puzzle[row][col] = '!';

if(move == FLIP) {

puzzle[row][col] = rand()% 126 + 35;
puzzle[x][y] = puzzle[row][col];

}

}

}

but the problem is i cant make the flipped character to remain it position at there when i want to go on to the next move :C like this >
http://i235.photobucket.com/albums/e.../untitled4.jpg
- like umm, having the flipped character shows up and the '!' sign together in the maze~
O..o
wow, a big dilemma.
but i tried to use the temporary but have tons of errors after i did tat.. and was not sure like
- my question is - (briefly)
do i need to create a temporary array to store the '!' and point the "arrays with '!' movement command" to temporary and carry out the arrays with ! movement again by using 'continue'?
if yes, where shuld i put my temporary array? do i declare tis temporary to "temparr[6][6] or temparr[a][b]- with creating another array of a and b ?"
hmmmmmmmm... @3@