pattern

1- C++ PROGRAM TO DISPLAY THE HALF PYRAMID OF *, NUMBERS AND CHARACTER.

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* * * * * * * * * * * * * * *

PROGRAM:

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#include <iostream> using namespace std; int main() { int i,j,rows; cout<<"Enter the number of rows: "; cin>>rows; for(i=1;i<=rows;++i) { for(j=1;j<=i;++j) { cout<<"* "; } cout<<"\n"; } return 0; }

2- C++ PROGRAM TO PRINT HALF PYRAMID AS USING NUMBERS AS SHOWN IN FIGURE BELOW.

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1 1 2 1 2 3 1 2 3 4 1 2 3 4 5

PROGRAM:

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#include <iostream> using namespace std; int main() {     int i,j,rows;     cout<<"Enter the number of rows: ";     cin>>rows;     for(i=1;i<=rows;++i)     {         for(j=1;j<=i;++j)         {            cout<<j<<" ";         }         cout<<"\n";     }     return 0; }

 

3- C++ PROGRAM TO PRINT TRIANGLE OF CHARACTERS AS BELOW

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A B B C C C D D D D E E E E E

PROGRAM:

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#include <iostream> using namespace std; int main() {     int i,j;     char input,temp='A';     cout<<"Enter uppercase character you want in triangle at last row: ";     cin>>input;     for(i=1;i<=(input-'A'+1);++i)     {         for(j=1;j<=i;++j)            cout<<temp<<" ";         ++temp;         cout<<endl;     }     return 0; }

 

4- C++ PROGRAM TO PRINT INVERTED HALF PYRAMID USING * AS SHOWN BELOW.

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* * * * * * * * * * * * * * *

PROGRAM:

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#include <iostream> using namespace std; int main() {     int i,j,rows;     cout<<"Enter the number of rows: ";     cin>>rows;     for(i=rows;i>=1;--i)     {         for(j=1;j<=i;++j)         {            cout<<"* ";         }         cout<<"\n";     }     return 0; }

 

5- C++ PROGRAM TO PRINT INVERTED HALF PYRAMID AS USING NUMBERS AS SHOWN BELOW.

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1 2 3 4 5 1 2 3 4 1 2 3 1 2 1

PROGRAM:

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#include <iostream> using namespace std; int main() {     int i,j,rows;     cout<<"Enter the number of rows: ";     cin>>rows;     for(i=rows;i>=1;--i)     {         for(j=1;j<=i;++j)         {            cout<<j<<" ";         }         cout<<"\n";     }     return 0; }

 

6- C++ PROGRAM TO DISPLAY THE PYRAMID OF * AND DIGITS. 

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*       * * *     * * * * *   * * * * * * * * * * * * * * * *

PROGRAM: 

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#include <iostream> using namespace std; int main() {     int i,space,rows,k=0;     cout<<"Enter the number of rows: ";     cin>>rows;     for(i=1;i<=rows;++i)     {         for(space=1;space<=rows-i;++space)         {            cout<<"  ";         }         while(k!=2*i-1)         {            cout<<"* ";            ++k;         }         k=0;         cout<<"\n";     }     return 0; }

 

7- C++ PROGRAM TO PRINT THE PYRAMID OF DIGITS IN PATTERN AS BELOW.

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1       2 3 2     3 4 5 4 3   4 5 6 7 6 5 4 5 6 7 8 9 8 7 6 5

PROGRAM: 

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#include <iostream> using namespace std; int main() {    int i,space,rows,k=0,count=0,count1=0;    cout<<"Enter the number of rows: ";    cin>>rows;    for(i=1;i<=rows;++i)    {       for(space=1;space<=rows-i;++space)       {          cout<<"  ";          ++count;       }       while(k!=2*i-1)       {             if (count<=rows-1)             {               cout<<i+k<<" ";               ++count;             }             else             {                ++count1;                cout<<i+k-2*count1<<" ";             }            ++k;         }       count1=count=k=0;       cout<<"\n";     }     return 0; }

 

8- C++ PROGRAM TO DISPLAY REVERSE PYRAMID. 

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* * * * * * * * *   * * * * * * *     * * * * *       * * *         *

PROGRAM:

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#include <iostream> using namespace std; int main() {     int rows,i,j,space;     cout<<"Enter number of rows: ";     cin>>rows;     for(i=rows;i>=1;--i)     {         for(space=0;space<rows-i;++space)            cout<<"  ";         for(j=i;j<=2*i-1;++j)            cout<<"* ";         for(j=0;j<i-1;++j)            cout<<"* ";         cout<<endl;     }     return 0; }

 

9- C++ PROGRAM TO DRAW PASCAL’S TRIANGLE AS BELOW. 

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1          1   1        1   2   1      1   3   3    1    1  4    6   4   1 1  5   10   10  5   1

PROGRAM:

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#include <iostream> using namespace std; int main() {     int rows,coef=1,space,i,j;     cout<<"Enter number of rows: ";     cin>>rows;     for(i=0;i<rows;i++)     {         for(space=1;space<=rows-i;space++)         cout<<"  ";         for(j=0;j<=i;j++)         {             if (j==0||i==0)                 coef=1;             else                coef=coef*(i-j+1)/j;             cout<<"    "<<coef;         }         cout<<endl;     } }

 

10- C++ PROGRAM TO DISPLAY FLOYD’S TRIANGLE.

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1 2 3 4 5 6 7 8 9 10

PROGRAM:

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#include <iostream> using namespace std; int main() {     int rows,i,j,k=0;     cout<<"Enter number of rows: ";     cin>>rows;     for(i=1;i<=rows;i++)     {         for(j=1;j<=i;++j)           cout<<k+j<<" ";         ++k;         cout<<endl;     }     return 0; }

 

11- C++ PROGRAM TO DRAW INVERTED HOLLOW TRIANGLE.

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* * * * * * * *         *    *     *      * *       *

PROGRAM:

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#include<iostream> using namespace std; int main() {        cout<<""Inverted Triangle Shape"nn";       int w=6;      for(int g=0;g<9;g++) {   cout<<"*";    // Displaying asterisk here }   cout<<endl; // endl is for new line     for(int a=1;a<=3;a++) {       for(int b=0;b<a;b++)    {     cout<<" ";    // displaying space here    }     cout<<"*";           for(int c=1;c<w;c++)      {       cout<<" ";      }       cout<<"*"<<endl;       w=w-2; }     for(int e=1;e<=1;e++) {       for(int f=4;f>=e;f--)    {     cout<<" ";    }     cout<<"*"; }     return 0; }

 

12.  C++ PROGRAM TO DISPLAY FOLLOWING PATTERN:

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A BC DEF GHIJ KLMNO

PROGRAM:

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#include <iostream> using namespace std; int main() { int i,j,n; char c; cout<<"Enter number of rows:"; cin>>n; c='A'; for(i=0;i<n;i++) { for(j=0;j<=i;j++) { if(c=='Z') break; cout<<c; c++; } cout<<endl; } return 0; }

Star pattern : 1

*
**
***
****
*****

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#include<iostream> using namespace std; int main() { int i, j; for(i=1;i<=5;i++) { for(j=1;j<=i;j++) { cout<<"*"; } cout<<endl; } return 0; }

Star pattern : 2

*

**

***

****

*****

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#include<iostream> using namespace std; int main() { int i, j, k; for(i=5;i>=1;i--) { for(j=1;j<i;j++) { cout << " "; } for(k=5;k>=i;k--) { cout << "*"; } cout << endl; } return 0; }

---

Star pattern : 3

*****
****
***
**
*

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#include<iostream> using namespace std; int main() { int i, j; for(i=5;i>=1;i--) { for(j=1;j<=i;j++) { cout<<"*"; } cout<<endl; } return 0; }

Star pattern : 4

*****

****

***

**

*

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#include<iostream> using namespace std; int main() { int i, j, k; for(i=5;i>=1;i--) { for(j=5;j>i;j--) { cout << " "; } for(k=1;k<=i;k++) { cout << "*"; } cout <<endl; } return 0; }

---

Star pattern : 5

*****
*****
*****
*****
*****

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=1; j<=5; j++) { cout << "*"; } cout <<endl; } return 0; }

Star pattern : 6

*****

*****

*****

*****

*****

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=1; j<i; j++) { cout << " "; } for(j=1; j<=5; j++) { cout << "*"; } cout <<endl; } return 0; }

---

     

---

Star pattern 7

*

**

* *

* *

* * * * *

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=1; j<=i; j++) { if(j==1 || j==i || i==5) { cout<< "*"; } else { cout << " "; } } cout <<endl; } return 0; }

Star pattern 8

*

**

* *

* *

* * * * *

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=i; j<5; j++) { cout << " "; } for(j=1; j<=i; j++) { if(i==5 || j==1 || j==i) { cout << "*"; } else { cout << " "; } } cout <<endl; } return 0; }

---

Star pattern 9

*

***

*****

*******

*********

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#include<iostream> using namespace std; int main() { int i, j, k; for(i=1;i<=5;i++) { for(j=i;j<5;j++) { cout << " "; } for(k=1;k<(i*2);k++) { cout << "*"; } cout <<endl; } return 0; }

Star pattern 10

*********

*******

*****

***

*

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#include<iostream> using namespace std; int main() { int i, j, k; for(i=5;i>=1;i--) { for(j=5;j>i;j--) { cout << " "; } for(k=1;k<(i*2);k++) { cout << "*"; } cout <<endl; } return 0; }

---

Star pattern 11

*

**

**

**

*********

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=i; j<5; j++) { cout << " "; } for(j=1; j<=(2*i-1); j++) { if(i==5 || j==1 || j==(2*i-1)) { cout << "*"; } else { cout << " "; } } cout <<endl; } return 0; }

Star pattern 12

*********

**

**

**

*

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#include<iostream> using namespace std; int main() { int i, j; for(i=5; i>=1; i--) { for(j=i; j<5; j++) { cout<< " "; } for(j=1; j<=(2*i-1); j++) { if(i==5 || j==1 || j==(2*i-1)) { cout<< "*"; } else { cout<< " "; } } cout<<endl; } return 0; }

---

Star pattern 13

*
**
***
****
*****
****
***
**
*

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=1; j<=i; j++) { cout<< "*"; } cout<<endl; } for(i=5; i>=1; i--) { for(j=1; j<i; j++) { cout<<"*"; } cout<<endl; } return 0; }

Star pattern 14

*

**

***

****

*****

****

***

**

*

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=i; j<5; j++) { cout<<" "; } for(j=1; j<=i; j++) { cout<<"*"; } cout<<endl; } for(i=5; i>=1; i--) { for(j=i; j<=5; j++) { cout<<" "; } for(j=1; j<i; j++) { cout<<"*"; } cout<<endl; } return 0; }

---

Star pattern 15

*

***

*****

*******

*********

*******

*****

***

*

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=i; j<5; j++) { cout<<" "; } for(j=1; j<=(2*i-1); j++) { cout<<"*"; } cout<<endl; } for(i=5; i>=1; i--) { for(j=i; j<=5; j++) { cout<<" "; } for(j=2; j<(2*i-1); j++) { cout<<"*"; } cout<<endl; } return 0; }

Star pattern 16

*

* *

*    *

*       *

*        *

*       *

*    *

* *

*

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#include<iostream> using namespace std; int main() { int i, j; for(i=1; i<=5; i++) { for(j=5; j>i; j--) { cout<<" "; } cout<<"*"; for(j=1; j<(i-1)*2; j++) { cout<<" "; } if(i==1) cout<<endl; else cout<<"*"<<endl; } for(i=4; i>=1; i--) { for(j=5; j>i; j--) { cout<<" "; } cout<<"*"; for(j=1; j<(i-1)*2; j++) { cout<<" "; } if(i==1) cout<<endl; else cout<<"*"<<endl; } return 0; }