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Program 134:To find sum of rows and columns in a matrix

To find sum of rows and columns in a matrix
Method I
#include<stdio.h>
main()
{ 
 int i,j,rows,col,sum_rows,sum_col,k=0,temp;
 printf("Enter number of rows and columns of a matrix\n");
 scanf("%d %d",&rows,&col);
int a[rows][col],t[col][rows];

  //Taking input of matrix
    printf("Enter Matrix 1\n");
    for(i=0;i<rows;i++)
    {
       for(j=0;j<col;j++)
      {
     scanf("%d",&a[i][j]);
      }
    }
    
    printf("Given /matrix is\n");
        for(i=0;i<rows;i++)
         {
         for(j=0;j<col;j++)
         {
           printf("%d\t",a[i][j]);
           }
  
           printf("\n");
           }
         

  for(i=0;i<rows;i++)
  {
   sum_rows=0;
  
   for(j=0;j<col;j++)
   {
    sum_rows+=a[i][j];   
   }
   printf("Sum of %d Row is %d\n",k,sum_rows);
      k++;
  }
  
  //Transpose and applying same logic as above for calculating columns
  //Exchanging rows and columns
 temp=rows;
 rows=col;
 col=temp;
  //Transpose of matrix
 for(i=0;i<rows;i++)
 {
  for(j=0;j<col;j++)
  {
   t[i][j]=a[j][i];
  }
 }
  
  k=0;
   for(i=0;i<rows;i++)
  {
   sum_col=0;
  
   for(j=0;j<col;j++)
   {
    sum_col+=t[i][j];   
   }
   printf("Sum of %d Column is %d\n",k,sum_col);
      k++;
  } 

}

Method II 
 
#include<stdio.h>
main()
{ 
 int i,j,rows,col,sum_rows,sum_col,k=0;
 printf("Enter number of rows and columns of a matrix\n");
 scanf("%d %d",&rows,&col);
int a[rows][col];

  //Taking input of matrix
    printf("Enter Matrix 1\n");
    for(i=0;i<rows;i++)
    {
       for(j=0;j<col;j++)
      {
     scanf("%d",&a[i][j]);
      }
    }
    
    printf("Given /matrix is\n");
        for(i=0;i<rows;i++)
         {
         for(j=0;j<col;j++)
         {
           printf("%d\t",a[i][j]);
           }
  
           printf("\n");
           }
         

  for(i=0;i<rows;i++)
  {
   sum_rows=0;
  
   for(j=0;j<col;j++)
   {
    sum_rows+=a[i][j];   
   }
   printf("Sum of %d Row is %d\n",k,sum_rows);
      k++;
  }
  k=0;
   for(i=0;i<col;i++)
   { 
     sum_col=0;
    for(j=0;j<rows;j++)
    {
     sum_col+=a[j][i];
     }
       printf("Sum of %d Column is %d\n",k,sum_col);
       k++;
   }    

}

Explanation:

//Coming Soon...

Output:

Method I:

To find sum of rows and columns in a matrix





Method II:

To find sum of rows and columns in a matrix













 

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