Discussion

What does the following fragment of C-program print?

char c[] = "GATE2011";  
char *p =c;  
printf("%s", p + p[3] - p[1]) ;

Answer: C

Correct answer: 2011

The subscripts give character codes: p[3] is 'E' = 69 and p[1] is 'A' = 65, so the expression is

\[ p + 69 - 65 = p + 4 \]

Printing from index 4 of "GATE2011" gives 2011.

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