Please explain this code: #include #include using namespace std; int main() {     char userInput[50];          cout << "Enter a word in lowercase letters: ";     cin >> userInput;         for (int i = 0; i <= strlen(userInput); i++) {         userInput[i] = toupper(userInput[i]);     }     cout << userInput;     return 0; }

Write a function getNeighbors which will accept an integer array, size of the array and an index as parameters. This function will return a new array of size 2 which stores the neighbors of the value at index in the original array. If this function would result in returning garbage values the new array should be set to values {0,0} instead of values from the array.

#include <iostream>#include <cstdlib>#include <time.h>#include <chrono> using namespace std::chrono;using namespace std; void randomVector(int vector[], int size){    for (int i = 0; i < size; i++)    {        //ToDo: Add Comment        vector[i] = rand() % 100;    }} int main(){     unsigned long size = 100000000;     srand(time(0));     int *v1, *v2, *v3;     //ToDo: Add Comment    auto start = high_resolution_clock::now();     //ToDo: Add Comment    v1 = (int *) malloc(size * sizeof(int *));    v2 = (int *) malloc(size * sizeof(int *));    v3 = (int *) malloc(size * sizeof(int *));     randomVector(v1, size);     randomVector(v2, size);     //ToDo: Add Comment    for (int i = 0; i < size; i++)    {        v3[i] = v1[i] + v2[i];    }     auto stop = high_resolution_clock::now();     //ToDo: Add Comment    auto duration = duration_cast<microseconds>(stop - start);     cout << "Time taken by function: "         << duration.count()…

>> IN C PROGRAMMING LANGUAGE ONLY << COPY OF DEFAULT CODE, ADD SOLUTION INTO CODE IN C   #include <stdio.h>#include <stdlib.h>#include <string.h> #include "GVDie.h" int RollSpecificNumber(GVDie die, int num, int goal) {/* Type your code here. */} int main() {GVDie die = InitGVDie(); // Create a GVDie variabledie = SetSeed(15, die); // Set the GVDie variable with seed value 15int num;int goal;int rolls;  scanf("%d", &num);scanf("%d", &goal);rolls = RollSpecificNumber(die, num, goal); // Should return the number of rolls to reach total.printf("It took %d rolls to get a \"%d\" %d times.\n", rolls, num, goal); return 0;}