title: Why using %c for formatting instead of %d
body: <p>This is code for To find sum of two numbers without using any operator,here why they are used %c instead of %d ? What is the features of %c compare to %d ? </p>
  
  <pre><code>int add(int x, int y)
  {
      return printf("%*c%*c",  x, ' ',  y, ' ');
  }
  
  int main()
  {
      printf("Sum = %d", add(3, 4));
      return 0;
  }
  </code></pre>