Using a while Loop to Check User Input

• main ( )

• {

• int num ;

• printf (“Enter a positive integer : “) ;

• scanf (“%d”, &num) ;

• while ( num < 0 )

• {

• printf (“\nThat’s incorrect, try again\n”);

• printf (“Enter a positive integer : “) ;

• scanf (“%d”, &num) ;

• }

• printf (“You entered %d\n”,num);

• }

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