Powers of 2 and 9 with different modifiers

In the final code snippet, powers of 2 and 9 are printed, as follows:

 printf( "Powers of 2: 2^0, 2^2, 2^4, 2^6, 2^8 , 2^10\n" );
 int k = 1;
 for( int i = 0 ; i < 6 ; i++ , k<<=2 )  {
  printf( " [%6d] [%-6d] [%-.6d] [%6.3d] [%-6.3d] [%d]\n" ,
          k , k , k , k , k , k );
 }
 printf( "\nPowers of 9: 9^1, 9^2, 9^3, 9^4\n" );
 k = 9;
 for( int i = 0 ; i < 5 ; i++ , k*=9 )  {
  printf( " [%6d] [%-6d] [%-.6d] [%6.3d] [%-6.3d] [%d]\n" ,
          k , k , k , k , k , k );
 }

In these printed values, we will pay particular attention to the formatted output—how they are aligned, whether they are zero-filled, and how the precision specifier changes them, if at all.

Enter these code snippets into signedInt.c. Compile and run the program. You should see something similar to the following output:

Pay particular attention to the differences...