Q51 What does printf() and scanf() return? July 18, 2015 Gyantoday Most Important Interview Questions In C Leave a comment Please click on the link i/o and o/p functions in C Share this: RelatedQ26 Write a C program to check leap year.July 12, 2015In "Most Important Interview Questions In C"Q25 Write a C program to find duplicate integer in an array.July 12, 2015In "Most Important Interview Questions In C"Q3. Write a C program to check given number is palindrome or not ?May 29, 2015In "Most Important Interview Questions In C"