C++ Excellent pro

Program to enter a letter and output the next 2 letters

#include 

#include 

void main()

{

clrscr();

char charac;

cout << "Enter your letter : " << endl;

cin>>charac;

cout << "The 2 letters are : " << endl;

cout << (char)(charac-1) << endl;

cout << (char)(charac+1) << endl;

getch();

}

Output

The next 2 letters after x are :

y

z

Program to identify if an input is a symbol, digit or character

#include 

#include 

void main()

{

clrscr();

char charac;

cout << "Enter your input : " << endl;

cin>>charac;

if(((charac>='A')&&(charac<='Z'))||((charac>='a')&&(charac<='z')))

cout << "Your input " << charac << " is a character." << endl;

else if((charac>='0')&&(charac<='9'))

cout << "Your input " << charac << " is a digit." << endl;

else

cout << "Your input " << charac << " is a symbol." << endl;

getch();

}

Output

       Your input # is a symbol.

Program to compute the fibonacci series

#include 

#include 

void main()

{

clrscr();

int a,b,x,y,num1,ct;

a=0;

b=1;

cout << "Enter the number of terms (less than 25) : " << endl;

cin>>num1;

cout << a << endl;

cout << b << endl;

for(ct=1;ct<=num1-2;ct++)

{

x=a+b;

cout << x << endl;

y=a;

a=b;

b=x;

}

getch();

}

Output

0

1

1

2

3

5

8

13

21

34

55

89

Program to find the total days in the year till date

#include 

#include 

void main()

{

clrscr();

int day,month,total;

int days_per_month[12]={31,28,31,30,31,30,31,31,30,31,30,31};

cout << "Enter the month : " << endl;

cin>>month;

cout << "Enter the day : " << endl;

cin>>day;

total=day;

for(int x=0;x

total+=days_per_month[x];

cout << "The number of days in this year till date = " << total << endl;

getch();

}

Output

           The number of days in this year till date = 163