C++ program

Write a program that asks the user to enter the size of a triangle to write to a textfile (an integer from 1 to 50), then print the triangle into a file by printing a series of lines consisting of asterisks. If the user enters an integer less than 1 or more than 50 tell them it is out of range and have them re-enter it (do not print the triangle for the invalid input, only for the final value in the range of 1-50 inclusive: 1 and 50 are both ok).

For example, if the user enters 5, the output would be:

*

**

***

****

*****

****

***

**

*

This is my code :

#include

#include

using namespace std;

int main()

{

int row;

int colum;

int num;

int space;

//enter inputs from the user

cout<< "Please enter a number to form a tringle from 1 to 50: ";

cin>>num;

{

for(int row = 0; row <= num; row++)

{

for(space = 0; space < row; space++)

{

cout<<"*";

}

cout<

}

for(int row= num; row > num;row--)

{

for(int c=0; c < row; c++)

{

cout<<"*";

}

cout<

}

for (int r = num-1; r>0;r--)

{

for(int c=0; c< r;c++)

{

cout<<"*";

}

cout<

}

}

return 0;

}

How can I use the loops to finish my code