To store and display elements of 2D-array..

[ayasofya]

Hi..i'm very new to thic C++ programming..in doing my assignment i face some difficulties..first
1) i use 2 dimension of array e.g," 1 columns and 5 numbers under each column"...and i ask the user the fill the numbers
2)Then, i want display back all the numbers that have been stored but it just display the last number in the column..i don't have any idea to make it display all the inputs..

Here, the programme that i've written so far...if anybody can help me and i do really appreciate that...

__________________________________________________ ______________



#include <stdio.h>
#define COL 1
#define NUM 6




int main (void)
{


int results[COL][NUM];


int col = 0, num= 0, temp = 0;

do {

printf("\nFor column %d ",col +1);
printf("\t");
while(num < (NUM - 1)) {

printf("\n\t ",&results[col][num]);
scanf("%d",&results[col][num]);
++num;

}
num = 0;
++col;
} while (col < COL);

col=0;
++num;



do {
do {
temp = results[col][num];
++num;
}while(num < (NUM - 1));
results[col][NUM-1]= temp;
temp = 0;
num = 0;
++col;
}while (col < COL);



col = 0;
++num;

printf("the matrice is...");
do {
printf("\n %d\n\t", results[col][NUM-1]);
++col;
++num;
}while (col < COL);
getch();
return (0);
}

[horace1]

Hi..i'm very new to thic C++ programming..in doing my assignment i face some difficulties..first
1) i use 2 dimension of array e.g," 1 columns and 5 numbers under each column"...and i ask the user the fill the numbers
2)Then, i want display back all the numbers that have been stored but it just display the last number in the column..i don't have any idea to make it display all the inputs..

Here, the programme that i've written so far...if anybody can help me and i do really appreciate that...
}

when you print the matrix you only print the last element - you need another loop, e.g.

printf("the matrice is...");
do {
    for(num=0; num<NUM-1; num++)
       printf("\n %d\n\t", results[col][num]);
++col;
}while (col < COL);
 

for simple loops it is usually easier to use a for() loop to do the same thing as a while(), e.g.

printf("the matrice is...");
for(col =0; col<COL; col++)
    for(num=0;num<NUM-1;num++)
       printf("\n %d\n\t", results[col][num]);
 

you could change your input to use a for()
why do you have 6 elements in the array and only use 5?

[ayasofya]

oh thanx a lot...hurm i think i juz make it too complicated, act i can juz simply define NUM 5 and num<5 as it starts from num=0...
anyway i can now display all the elements but how to make it really looks like the arranggement of a matrix...

for e.g if i have 2 columns

first column
1
2

2nd column

3
4

but how display the whole matrix like this?
1 3
2 4