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Solution For LRU Stack

The objective is to i mplement a stack using LinkedList. You need to implement push and pop function. When push is called, insert the items in list at the head. When the stack is empty and pop is called return 0 The maximum stack size allowed is 5 Whenever a push is called Case 1 : Value is NOT present in stack: If the stack is full (has 5 items) then remove the oldest pushed item on the stack and push the new item. If the stack is not full, then push the new item Case 2 : Value is already present in stack: Since the item is already present in the stack move it to the top of the stack. Algorithm Step 1 :- Create a class(or structure ,depends on the programming language) with a data members for the creation of linked list. Step 2:- Implement push and pop function using a linked list as we do normally. Step 3:- In push function before pushing the element to stack check the size of the stack. ->if size is less than 5 ,then push the element normally. ->els...
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Print Palindromic Paths

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Given a matrix containing lower alphabetical characters only, we need to find all palindromic paths in given matrix. A path is defined as a sequence of cells starting from top-left cell and ending at bottom-right cell. We are allowed to move to right and down only from current cell. You cannot go down diagonally.  Input : mat[][] = {"aaab”, "baaa” “abba”}  aaaaaa (0, 0) -> (0, 1) -> (1, 1) -> (1, 2) -> (1, 3) -> (2, 3)   aaaaaa (0, 0) -> (0, 1) -> (0, 2) -> (1, 2) -> (1, 3) -> (2, 3)   abaaba (0, 0) -> (1, 0) -> (1, 1) -> (1, 2) -> (2, 2) -> (2, 3)   Output   {"aaaaaa","aaaaaa","abaaba"}   Order of elements in the output array doesn't matter. CODE
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C library function - qsort()

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Description               The C library function void qsort(void *base, size_t nitems, size_t size, int (*compar)(const void *, const void*)) sorts an array. Parameters base -- This is the pointer to the first element of the array to be sorted. nitems -- This is the number of elements in the array pointed by base. size -- This is the size in bytes of each element in the array. compar -- This is the function that compares two elements. Return Value This function does not return any value Code   #include <stdio.h> #include <stdlib.h> int values [] = { 88 , 56 , 100 , 2 , 25 }; int cmpfunc ( const void * a , const void * b ) { return ( *( int *) a - *( int *) b ); } int main () { int n ; printf ( "Before sorting the list is: \n" ); for ( n = 0 ; n < 5 ; n ++ ) { printf ( "%d " , values [ n ]); } qsort (...
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