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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void)
  5. {
  6.      int i,j,sum=0,k=1;
  7.      char p[10];                  // using a char array to print spaces between number ans sun
  8.      memset(p,'\0',sizeof p);     // initialize array elements to null
  9.     for(i=1;i<=5;i++)
  10.      {  
  11.         sum =0;                     // set sum to 0 in every iteration 
  12.         for(j=1;j<=i;j++)
  13.         {
  14.             printf(" ");
  15.         }
  16.  
  17.        for(j=i;j<=5;j++)
  18.        {
  19.            printf("%i",j);   
  20.            sum = sum + j;
  21.        }
  22.        if(k<10){                    // this is to print space between number and sum 
  23.           memset(p,' ',k);         // include number of space in string 
  24.           printf("%s",p);          // print the string with space
  25.        }
  26.         k=k+2;                         // increment k by 2
  27.         printf("%i",sum);
  28.         printf("\n");
  29.     }
  30.   return 0;
  31. }
Success #stdin #stdout 0s 2160KB
comments (?)
stdin
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Standard input is empty
stdout
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 12345 15
  2345   14
   345     12
    45       9
     5         5
https://ideone.com/JElu5T
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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