Answer Posted / rahul mathur

^ is a exclusive OR bitwise operator.

We can use this "^" operator for swaping two values without
using third variable and without using +, - operator as
shown below:

void xorSwap (int *x, int *y) {
if (x != y) {
*x ^= *y;
*y ^= *x;
*x ^= *y;
}
}

What is difference between %d and %i in c?

1180

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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 }

3126

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How can I list all of the predefined identifiers?

927

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Can you mix old-style and new-style function syntax?

1045

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a character or group of characters that defines a register,or a part of storage a) memory b) byte c) address d) linear list

961

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Why can't I perform arithmetic on a void* pointer?

1043

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What is the use of header?

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How to declare pointer variables?

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What is main () in c language?

1077

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a c code by using memory allocation for add ,multiply of sprase matrixes

2743

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What is #pragma statements?

1051

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Write a code to generate divisors of an integer?

1005

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What is n in c?

973

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Please send me WIPRO technical question to my mail ID.. its nisha_g28@yahoo.com please its urgent

2073

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What is an identifier?

979

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