Answer Posted / reejusri

In order to access the command arguments, the main()
function must have a prototype similar to the following.
int main(int argc, char * argv[])

The names argc and argv are usually used for the
parameters, but a programmer could use different names.

Write a program to swap two numbers without using third variable?

1079

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A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?

1768

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State the difference between x3 and x[3].

865

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What do you understand by friend-functions? How are they used?

966

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What is the maximum length of an identifier?

928

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Why is it that not all header files are declared in every C program?

929

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Explain void pointer?

824

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You have given 2 array. You need to find whether they will create the same BST or not. For example: Array1:10 5 20 15 30 Array2:10 20 15 30 5 Result: True Array1:10 5 20 15 30 Array2:10 15 20 30 5 Result: False One Approach is Pretty Clear by creating BST O(nlogn) then checking two tree for identical O(N) overall O(nlogn) ..we need there exist O(N) Time & O(1) Space also without extra space .Algorithm ?? DevoCoder guest Posted 3 months ago # #define true 1 #define false 0 int check(int a1[],int a2[],int n1,int n2) { int i; //n1 size of array a1[] and n2 size of a2[] if(n1!=n2) return false; //n1 and n2 must be same for(i=0;ia1[i+1]) && (a2[i]>a2[i+1]) ) ) return false; } return true;//assumed that each array doesn't contain duplicate elements in themshelves }

2965

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Why is extern used in c?

854

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What is far pointer in c?

1028

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What is the incorrect operator form following list(== , <> , >= , <=) and what is the reason for the answer?

1203

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How can a program be made to print the line number where an error occurs?

895

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How do you construct an increment statement or decrement statement in C?

1007

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Can you please explain the difference between exit() and _exit() function?

843

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What are conditional operators in C?

839

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