C program to generate string as matrix diagonal characters using two dimesional array

C program to generate string as matrix diagonal characters using two dimesional array

This c program is used to generate and print the string as filling charaters in matrix diagonal and filling '-' character in remaining places using two dimensional array and nested for loops.

Let us see example 4x4 diagonal characters matrix,

c - - -
- o - - 
- - d - 
- - - e

#include<stdio.h>                                                              
#include<string.h>                                                            
                                                                                
#define COLUMN 50                                                               
#define ROW 50                                                                  
                                                                                
void main()                                                                     
{                                                                               
  char diagonal_matrix[ROW][COLUMN], str[50];;                                  
  int i,j, rows, columns;                                                       
                                                                                
  printf("\nEnter string: ");                                                   
  scanf("%s", str);                                                             
  rows = columns = strlen(str);                                                 
  for(i=0;i<rows;i++)                                                           
  {                                                                             
    for(j=0;j<columns;j++)                                                      
    {                                                                           
      if(i==j)                                                                  
      {                                                                         
        diagonal_matrix[i][j] = str[i];                                         
      }                                                                         
      else                                                                      
      {                                                                         
       diagonal_matrix[i][j] = '-';                                             
      }                                                                         
    }                                                                           
  }                                                                             
  printf("\ndiagonal string '%s': \n",str);                                     
  for(i=0;i<rows;i++)                                                           
  {                                                                             
    for(j=0;j<columns;j++)                                                      
    {                                                                           
      printf("%c\t", diagonal_matrix[i][j]);                                    
    }                                                                           
    printf("\n");                                                               
  }                                                                             
}    

Output;

$ cc diagonal_string.c 
$ ./a.out 

Enter string: codingpointer

diagonal string 'codingpointer': 
c	-	-	-	-	-	-	-	-	-	-	-	-	
-	o	-	-	-	-	-	-	-	-	-	-	-	
-	-	d	-	-	-	-	-	-	-	-	-	-	
-	-	-	i	-	-	-	-	-	-	-	-	-	
-	-	-	-	n	-	-	-	-	-	-	-	-	
-	-	-	-	-	g	-	-	-	-	-	-	-	
-	-	-	-	-	-	p	-	-	-	-	-	-	
-	-	-	-	-	-	-	o	-	-	-	-	-	
-	-	-	-	-	-	-	-	i	-	-	-	-	
-	-	-	-	-	-	-	-	-	n	-	-	-	
-	-	-	-	-	-	-	-	-	-	t	-	-	
-	-	-	-	-	-	-	-	-	-	-	e	-	
-	-	-	-	-	-	-	-	-	-	-	-	r	

C program to print only string in matrix diagonal using two dimensional array

This c program is used to print the string as filling charaters in matrix diagonal and filling ' ' character in remaining places using two dimensional array and nested for loops.

#include                                                               
#include                                                              
                                                                                
#define COLUMN 50                                                               
#define ROW 50                                                                  
                                                                                
void main()                                                                     
{                                                                               
  char diagonal_matrix[ROW][COLUMN], str[50];;                                  
  int i,j, rows, columns;                                                       
                                                                                
  printf("\nEnter string: ");                                                   
  scanf("%s", str);                                                             
  rows = columns = strlen(str);                                                 
  for(i=0;i<rows;i++)                                                           
  {                                                                             
    for(j=0;j<columns;j++)                                                      
    {                                                                           
      if(i==j)                                                                  
      {                                                                         
        diagonal_matrix[i][j] = str[i];                                         
      }                                                                         
      else                                                                      
      {                                                                         
       diagonal_matrix[i][j] = ' ';                                             
      }                                                                         
    }                                                                           
  }                                                                             
  printf("\ndiagonal string '%s': \n",str);                                     
  for(i=0;i<rows;i++)                                                           
  {                                                                             
    for(j=0;j<columns;j++)                                                      
    {                                                                           
      printf("%c\t", diagonal_matrix[i][j]);                                    
    }                                                                           
    printf("\n");                                                               
  }                                                                             
}    

Output;

$ cc diagonal_string.c 
$ ./a.out 

Enter string: codingpointer

diagonal string 'codingpointer': 
c	 	 	 	 	 	 	 	 	 	 	 	 	
 	o	 	 	 	 	 	 	 	 	 	 	 	
 	 	d	 	 	 	 	 	 	 	 	 	 	
 	 	 	i	 	 	 	 	 	 	 	 	 	
 	 	 	 	n	 	 	 	 	 	 	 	 	
 	 	 	 	 	g	 	 	 	 	 	 	 	
 	 	 	 	 	 	p	 	 	 	 	 	 	
 	 	 	 	 	 	 	o	 	 	 	 	 	
 	 	 	 	 	 	 	 	i	 	 	 	 	
 	 	 	 	 	 	 	 	 	n	 	 	 	
 	 	 	 	 	 	 	 	 	 	t	 	 	
 	 	 	 	 	 	 	 	 	 	 	e	 	
 	 	 	 	 	 	 	 	 	 	 	 	r