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- explain the functionality used in the below program. explain all the functions and algorithem used in this program. #include<iostream>#include<string.h>using namespace std;#define ROW 5#define COL 5// A function to check if a given// cell (row, col) can be included in DFSint isSafe(int M[][COL], int row, int col,bool visited[][COL]){// row number is in range, column// number is in range and value is 1// and not yet visitedreturn (row >= 0) && (row < ROW) && (col >= 0) && (col < COL) && (M[row][col] &&!visited[row][col]);}// A utility function to do DFS for a// 2D boolean matrix. It only considers// the 8 neighbours as adjacent verticesvoid DFS(int M[][COL], int row, int col,bool visited[][COL]){// These arrays are used to get// row and column numbers of 8// neighbours of a given cellstatic int rowNbr[] = { -1, -1, -1, 0, 0, 1, 1, 1 };static int colNbr[] = { -1, 0, 1, -1, 1, -1, 0, 1 };// Mark this cell as…Write these codes in c language please. Thank you in advance. 1. Add two more statements to main() to test inputs 3 and -1. Use print statements similar to the existing one (don't use assert). 2. Using the CelsiusToKelvin function as a guide, create a new function, changing the name to KelvinToCelsius, and modifying the function accordingly. 3. Write a function SwapArrayEnds() that swaps the first and last elements of the function's array parameter. Ex: sortArray = {10, 20, 30, 40} becomes {40, 20, 30, 10}.Write a function called substring that uses the leftmatch and rightmatch functions to remove a pattern from the left and right side of a value. It should take three arguments as shown: $ substring /usr/ /usr/spool/uucppublic /uucppublic spool $ substring s. s.main.c .c main $ substring s. s.main.c .o Only left match main.c $ substring x. s.main.c .o No matches s. main.c
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- in c++ language Write a C++ function named greater_10. This function returns an int and has two integer arguments, number1 and number2. greater_10 returns 1 of the sum of number1 and number2 is greater than 10 otherwise return -1.Write a function named midvalue that is passed three unique int values and returns the one that is in the middle. Thus, midvalue(5,28,14) returns 14.Write and test a function to meet this specification.squareEach (nums) nums is a list of numbers. Modifies the list by squaringeach entry.