Question

5.12 (Drawing Patterns with Nested for Loops) Write a program that uses for statements to print the following patterns separately, one below the other. Use for loops to generate the patterns. All asterisks ) should be printed by a single statement of the form cout (this causes the asterisks to print side by side). [Hint: The last two patterns require that each line begin with an appropriate number of blanks. Extra credit Combine your code from the four separate problems into a single program that prints all four patterns side by side by making clever use of nested for loops.] 197

write code in C++ make it print just like like the above image.

Answer 1

#include <iostream>

using namespace std;

int main()

{

//1st pattern

int i,j,k;

for (i=1;i<=10;i++)

{

for (j=1;j<=i;j++) //in question no.of stars are 10 so i use 10 if u want u can change

{

cout<<"*";

}

cout<<endl;

}

//2nd pattern

cout<<endl;

for (i=10;i>=0;i--)

{

for (j=1;j<=i;j++)

{

cout<<"*";

}

cout<<endl;

}

//3rd pattern

for(i=10;i>=1;i--)

{

for(j=10;j>i;j--)

{

cout<<" ";

}

for(k=1;k<=i;k++)

{

cout<<"*";

}

cout<<endl;

}

//4rd pattern

cout<<endl;

for(i=10;i>=1;i--)

{

for(j=1;j<i;j++)

{

cout<<" ";

}

for(k=10;k>=i;k--)

{

cout<<"*";

}

cout<<endl;

}

return 0;

}