Question

C++ Code

Using all for loops

1. Print 5 lines with 1 asterisk per line

2. Print 5 asterisk on 1 line. Endl at the end of the line.

3. Ask for a positive # and print that many asterik on the next line.

4. Using 2 for loops one inside of another that only prints 1 asterik, print a hill shaped triangle:

Ex( Input a number a: 4

*

**

***

****

5. Change the for statements to print the triangle upside down.

Answer 1

1.

Code:-

#include <bits/stdc++.h>
using namespace std;

int main() {
    for(int i=0;i<5;i++) // for loop to iterate 5 times
    cout<<"*"<<endl;  //print one asterik mark per line 
    return 0;
}

Output:-

2.

Code:-

#include <bits/stdc++.h>
using namespace std;

int main() {
    for(int i=0;i<5;i++) // for loop to iterate 5 times
    cout<<"*";  //print five asterik mark per line 
    return 0;
}

Output:-

3.

Code:-

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cout<<"Input a number"<<endl;
    cin>>n; //Ask for positive integer
    for(int i=0;i<n;i++) // for loop to iterate n times
    cout<<"*";  //print n asterik mark per line 
    return 0;
}

Output:-

4.

Code:-

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cout<<"Input a number"<<endl;
    cin>>n; //Ask for positive integer
    for(int i=0;i<n;i++) // for loop to iterate n times
    {   for(int j=0;j<=i;j++) // second for loop to print pattern in hill shaped triangle
            cout<<"*";  
        cout<<endl;
    }
    return 0;
}

Output:-

5.

Code:-

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n;
    cout<<"Input a number"<<endl;
    cin>>n; //Ask for positive integer
    for(int i=0;i<n;i++) // for loop to iterate n times
    {   for(int j=n;j>i;j--) // second for loop to print the triangle upside down
            cout<<"*";  
        cout<<endl;
    }
    return 0;
}

Output:-