In this tutorial, we will discuss the Cpp program triangle alphabet pattern using while loop
In this post, we will learn how to displayed Floyd’s triangle alphabet pattern using while loop or nested while loop in C++ programming language
here, we displayed some alphabet Floyd’s triangle program with coding using nested while loop and also we get input from the user using cin() function in C++ language
the user can provide numbers as they wish and get the alphabet pattern according to their input
Program 1
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=1;
while(j<=i){
cout<<(char)(i+64);
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A BB CCC DDDD EEEEE FFFFFF
Program 2
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=1;
while(j<=i){
cout<<(char)(j+64);
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A AB ABC ABCD ABCDE ABCDEF
Program 3
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=i;
while(j<=rows){
cout<<((char)(i+64));
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 AAAAAA BBBBB CCCC DDD EE F
Program 4
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=rows;
while(i>=1){
j=i;
while(j<=rows){
cout<<((char)(j+64));
j++;
}
i--;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 F EF DEF CDEF BCDEF ABCDEF
Program 5
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=i;
while(j>=1){
cout<<((char)(j+64));
j--;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 A BA CBA DCBA EDCBA FEDCBA
Program 6
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=1;
while(j<=i){
cout<<((char)(rows-i+1+64));
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 F EE DDD CCCC BBBBB AAAAAA
Program 7
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=rows;
while(i>=1){
j=rows;
while(j>=i){
cout<<((char)(j+64));
j--;
}
i--;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 F FE FED FEDC FEDCB FEDCBA
Program 8
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=rows;
while(i>=1){
j=1;
while(j<=i){
cout<<((char)(i+64));
j++;
}
i--;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter te number of rows 6 FFFFFF EEEEE DDDD CCC BB A
Program 9
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=1;
while(i<=rows){
j=rows;
while(j>=i){
cout<<((char)(j+64));
j--;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 FEDCBA FEDCB FEDC FED FE F
Program 10
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
cout << "Enter the number of rows" << endl;
cin>>rows;
cout<<"\n";
i=rows;
while(i>=1){
j=i;
while(j>=1){
cout<<((char)(j+64));
j--;
}
i--;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows 6 FEDCBA EDCBA DCBA CBA BA A
Program 11
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
char ch='A';
cout<<"Enter the number of rows: ";
cin>>rows;
i=1;
while(i<=rows)
{
j=1;
while(j<=i){
cout<<ch++<<" ";
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A B C D E F G H I J K L M N O P Q R S T U
Program 12
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows,num,count1;
cout<<"Enter the number of rows: ";
cin>>rows;
i=1;
while(i<=rows)
{
num=rows-1;
count1=i;
j=1;
while(j<=i){
cout<<(char)(count1+64)<<" ";
count1=count1+num;
num--;
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A B G C H L D I M P E J N Q S F K O R T U
Program 13
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int i,j,rows;
char ch='A';
cout<<"Enter the number of rows: ";
cin>>rows;
i=1;
while(i<=rows)
{
j=1;
while(j<=(i*2-1)){
cout<<((char)(j+64))<<" ";
j++;
}
i++;
cout<<"\n";
}
getch();
return 0;
}
When the above code executed, it produces the following results
Enter the number of rows: 6 A A B C A B C D E A B C D E F G A B C D E F G H I A B C D E F G H I J K
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