Answer Posted / sreenivas

#include<stdio.h>
main()
{
long n=12345,r=0;
while(n)
{
r=r*10+n%10;
n=n/10;
}
printf("%ld",r);
}

Explain what does the function toupper() do?

1004

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What are the advantages of using Unions?

1065

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What is realloc in c?

1014

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What is advantage of pointer in c?

1121

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Create a structure to specify data on students as given below: Roll number, Name, Department, Course, and Year of joining. Assume that there are not more than 450 students in the collage. (a) Write a function to print the names of all students who joined in the last 3 years. (b) Write a function to print the data of a student whose roll numbers are divisible by 4.

1051

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What is c variable?

992

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How can type-insensitive macros be created?

1126

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What is FIFO?

1538

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In a byte, what is the maximum decimal number that you can accommodate?

1067

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List some of the static data structures in C?

1154

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What is the use of getchar functions?

1125

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How will you declare an array of three function pointers where each function receives two ints and returns a float?

1289

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Why flag is used in c?

1065

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4-Take two sets of 5 numbers from user in two arrays. Sort array 1 in ascending and array 2 in descending order. Perform sorting by passing array to a function mySort(array, sortingOrder). Then multiply both the arrays returned from function, using metric multiplication technique in main. Print result in metric format.

2135

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Can you explain what keyboard debouncing is, and where and why we us it? please give some examples

2143

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