# C two-dimensional array

### Example - Two-dimensional array

``````
#include <stdio.h>
/*from   www  . j  a  va  2 s  . com*/
main(){
int a[3][2];
int i,j;
for(i = 0;i<3;i++){
for(j=0;j<2 ;j++) {
a[i][j]=2;
}
}

for(i = 0;i<3;i++){
for(j=0;j<2;j++) {
printf("value in array %d\n",a[i][j]);
}
}

for(i = 0;i<3;i++){
for(j=0;j<2;j++){
printf("value in array %d and address is %8u\n", a[i][j],&a[i][j]);
}
}
}
``````

The code above generates the following result.

### Transpose of a matrix

``````
#include<stdio.h>
#include<conio.h>
#define ROW 3/*from w  ww .jav a2  s .c  om*/
#define COL 3

void dis(int a[][COL],int,int);
void trans(int a[][COL],int,int);

void main()
{
int a[ROW][COL];
a[0][0] = 1;    a[0][1] = 2;    a[0][2] = 3;
a[1][0] = 4;    a[1][1] = 5;    a[1][2] = 6;
a[2][0] = 7;    a[2][1] = 8;    a[2][2] = 9;

printf("\nThe matrix is \n");
dis(a,ROW,COL);
trans(a,ROW,COL);
printf("The tranpose of the matrix is\n");
dis(a,ROW,COL);
getch();
}

void dis(int d[3][3 ],int i,int k)
{
int j,l;
for(j=0;j<i;j++)
{
for(l=0;l<k;l++)
printf("%d ",d[j][l]);
printf("\n");
}
}
void trans(int mat[][3],int k ,int l)
{
int i,j,temp;
for(i=0;i<k;i++)
for(j=i+1;j<l;j++)
{
temp=mat[i][j];
mat[i][j]=mat[j][i];
mat[j][i]=temp;
}
}
``````

The code above generates the following result.

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