Hello, I just wanted to know what the function of the for loop in lines 12-13 did. I understand everything above, but I'm not getting the purpose of the variable K. What action does it perform? This the "dumb" 8 queens problem; just one with less chess spots you can say. ```cpp#include using namespace std;int main() { int q[3]; for (int i0 = 0; i0 < 3; i0++) for (int i1 = 0; i1 < 3; i1++) for (int i2 = 0; i2 < 3; i2++) { q[0] = i0; q[1] = i1; q[2] = i2; for (int k = 0; k < 3; k++) cout << q[k] << '\t'; cout << endl; }}```### Explanation:This C++ program generates all possible combinations of numbers for a 3-element array `q`. Here's how it works:- **Array Declaration**: - `int q[3];` creates an array named `q` with 3 integer elements.- **Nested Loops**: - Three nested `for` loops iterate over indices `i0`, `i1`, and `i2`, each ranging from 0 to 2. - These loops generate all possible tuples `(i0, i1, i2)` for the array `q`.- **Array Assignment**: - Inside the innermost loop, the array `q` is assigned values: `q[0] = i0;`, `q[1] = i1;`, and `q[2] = i2;`.- **Output**: - A `for` loop iterates over the array `q`, printing each value followed by a tab (`'\t'`). - `cout << endl;` is used to move to the next line after printing the entire array, formatting output in a row-by-row manner.This program essentially provides a way to iterate over and print combinations from a set of integers, showcasing basic use of loops and arrays in C++.### Diagram Explanation:There is a rough sketch above the code likely representing a matrix or a 3x3 grid, symbolizing combinations or arrangements visually produced by the program. This grid can help visualize the permutations generated by the nested loops.

Explanation: Because in case we didn't mention k for loop we want to print results one by one. like this, cout<<q[0]<<'\t'; cout<<q[1]<<'\t'; cout<<q[2]<<'\t'; But for loop simplify the extra line code. this code k value is starting to value 0 arrays to 3 array result printing code. If ur array value is 5 just change k=3 instead of k=5 u get the same result. This question k loop using a print the result without manual assigning. So in this case k loop is used for(int k=0; k<3;k++){ cout<<q[k]<<'\t'; cout<<endl; }Answer: With k for loop: #include <iostream>using namespace std; int main(){ int q[3]; for(int i0=0; i0<3;i0++){ for(int i1=0; i1<3;i1++){ for(int i2=0; i2<3;i2++){ q[0]=i0; q[1]=i1; q[2]=i2; for(int k=0; k<3;k++) cout<<q[k]<<'\t'; cout<<endl; } } }} Output Screenshot:Without k for loop: #include <iostream>using namespace std; int main(){ int q[3]; for(int i0=0; i0<3;i0++){ for(int i1=0; i1<3;i1++){ for(int i2=0; i2<3;i2++){ q[0]=i0; q[1]=i1; q[2]=i2; cout<<q[0]<<"\t"; cout<<q[1]<<"\t"; cout<<q[2]<<"\t"; cout<<endl; } } }} Output Screenshot: k loop is used to print the result in print code is a single line. No need to manually assign printing code. I hope u understand my answer.