Dear students, so far while discussing
various topics I have include related programs for the better understanding of
those concepts. Here by I am writing some more simple C++ programs which will further
help you in better understanding and implementation of the programming concepts
that so far we have discussed.
It will be the
best practice if you can write some more programs by your own. As we will move
on further, more related programs will be discussed.
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Prg.No.
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Program
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1.
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//Write a Program
to check for a given number as even or odd
#include<iostream.h>
int main()
{
int num;
cout<<”\n
Enter a number: “;
cin>>num;
if(num%2 == 0)
cout<<”\n
Number “<<num<<” is EVEN”;
else
cout<<”\n
Number “<<num<<” is ODD”;
return 0;
}
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2.
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/*Write a program
to print all the EVEN numbers present in a given range of numbers*/
#include<iostream.h>
int main()
{
int lower,upper;
cout<<”\n
Enter Lower limit:”;
cin>>lower;
cout<<”\n
Enter Upper limit:”;
cin>>upper;
cout<<”\n
EVEN numbers in the range: \n\n”;
for(int i=lower;i<=upper;i++)
{
if(i%2 == 0)
cout<<i<<endl;
}
Return 0;
}
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3.
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//Find the
greatest of three numbers
#include
<iostream.h>
int main()
{
int a,b,c;
cout<<"\nEnter Three Numbers:
";
cin>>a>>b>>c;
cout<<endl;
if(a>b)
{
if(a>c)
{
cout<<a<<" IS
GREATEST";
}
}
else if(b>c)
cout<<b<<" IS
GREATEST";
else
cout<<c<<" IS
GREATEST";
return 0;
}
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4.
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//Convert the
total time entered in seconds as – Hrs. Mins. Sec.
#include
<iostream.h>
int main()
{
int val,hrs,min,sec,temp1;
cout << "Enetr time in
seconds" << endl;
cin>>val;
hrs=val/3600;
temp1=val-(hrs*3600);
min=temp1/60;
sec=temp1-(min*60);
cout<<"Time =
"<<"Hrs: "<<hrs<<" Mins:
"<<min<<" Sec: "<<sec;
return 0;
}
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5.
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//Calculate LCM of
two numbers
#include
<iostream.h>
int main()
{
int i,m,n,v1,lcm;
lcm=1;i=2;
cout<<"\n Enter two numbers: ";
cin>>m>>n;
v1=(m>n)?m:n;
while(i<=v1)
{
if(m%i ==0 && n%i==0)
{
lcm*=i;
m/=i;
n/=i;
i=2;
}
else
i++; v1=(m>n)?m:n;
}
cout<<"\n LCM =
"<<lcm*m*n;
return 0;
}
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6.
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//Program to find
HCF of two numbers
#include
<iostream.h>
int main()
{
int a,b,max,min,r;
r=0;
cout<<"\n
enter two numbers: ";
cin>>max>>min;
(max > min) ?
max:min;
while(max % min != 0)
{
r=max%min;
int temp=min;
min=r;
max=temp;
}
cout<<"\n
HCF:"<<min;
return 0;
}
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7.
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//Program to print
the Factorial of a number
#include
<iostream.h>
int main()
{
int num,factorial=1,i;
cout << "Enter a number"
<< endl;
cin>>num;
i=num;
while(i>=1)
{
factorial*=i;
i--;
}
cout<<"\nFactorial of
"<<num<<" = "<<factorial;
return 0;
}
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8.
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//Program to check
for an Armstrong Number
// Example: 371
#include
<iostream.h>
#include<math.h>
int main()
{
int num,temp,R,sum=0;
cout << "Enter a number:
";
cin>>num;
temp=num;
while(temp)
{
R=temp%10;
sum=sum+R*R*R;
temp/=10;
}
if(sum == num)
cout<<num<<" is
Armstrong Number";
else
cout<<num<<" is not
Armstrong Number";
return 0;}
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9.
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//To check for a
given as Palindrome number
#include
<iostream.h>
int main()
{
int num,num2,R,rev=0;
cout << "Enter Your
Number" << endl;
cin>>num;
num2=num;
while (num)
{
R=num%10;
rev=rev*10+R;
num/=10;
}
cout<<"Reversed form of number
= "<<rev;
if(rev == num2)
cout <<" and the number is PALINDROME";
else
cout <<" and the number is NOT
PALINDROME";
return 0;
}
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10.
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//Program for
printing Fibonacci Series for given number or terms
#include
<iostream.h>
int main()
{
int a=-1,b=1,sum=0,num;
cout<<"\nEter for number of
terms:";
cin>>num;
for(int i=0;i<num;i++)
{
sum=a+b;
cout<<sum<<' ';
a=b;
b=sum;
}
return 0;
}
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11.
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//Write the
program to print the following output:
#include
<iostream.h>
int main()
{
for(int i=0;i<10;i++)
{
for(int j=0;j<i;j++)
{
if((i+j)%2==0)
cout<<0<<' ';
else
cout<<1<<' ';
}
cout<<endl<<endl ;
}
return 0;
}
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12.
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//Program to check
a year as a LEAP year or not
#include
<iostream.h>
int main()
{
int year;
cout<<"\n
Enter Year: ";
cin>>year;
if(year%4 == 0 || year % 400 == 0)
cout<<"\n LEAP YEAR";
else
cout<<"\n NOT A LEAP
YEAR";
return 0;
}
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13.
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//Program to print
all the PRIME NUMBERS from the range of numbers
#include
<iostream.h>
int main()
{
int lower,upper,flag;
cout<<"\n
Enter Lower limit: ";
cin>>lower;
cout<<"\n
Enter Upper limit: ";
cin>>upper;
cout<<"\n
PRIME NUMBERS ARE: \n\n";
for(int i=lower;i<=upper;i++)
{ flag = 0;
for(int j=2;j<=i-1;j++)
{
if(i%j == 0)
{
flag = 1;
break;
}
}
if(!flag)
cout<<i<<'\n';
}
return 0;
}
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14.
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/*Convert an
entered character into upper case to lower case and vise versa*/
#include
<iostream.h>
int main()
{
char ch;
cout<<"\n Enter your
character: ";
cin>>ch;
if(int(ch)>=65 &&
int(ch)<=90)
ch+=32;
else if(int(ch)>=97 &&
int(ch)<=122)
ch-=32;
else
{
cout<<"\n You haven't entered
an alphabet";
}
cout<<ch;
return 0;
}
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15.
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//Program to print
the following output
#include
<iostream.h>
int main()
{
int a,b,c,d,k=1;
for(a = 6;a>=1;a--)
{
for(b = 1;b<k;b++)
cout<<" ";
for(c=a;c>=1;c--)
cout<<c;
for(d=2;d<=a;d++)
cout<<d;
cout<<'\n';
k++;
}
return 0;
}
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16.
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//Write a program
to print the following output
#include
<iostream.h>
int main()
{
int a,b,c,d,k=1;
for(a = 70;a>=65;a--)
{
for(b = 65;b<=a;b++)
cout<<char(b);
if(a == 70)
{
for(c=69;c>=65;c--)
cout<<char(c);
cout<<'\n';
}
else
{
for(d = 1;d<=k;d++)
cout<<" ";
for(c=a;c>=65;c--)
cout<<char(c);
cout<<'\n';
k+=2;
}
}
return 0;
}
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17.
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//Write a program
to print the following output
#include<iostream.h>
int main()
{
int i,j,p;
for(i=5;i>=1;i--)
{
for(j=i;j>=1;j--)
cout<<j<<' ';
cout<<endl;
}
return 0;
}
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18
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//Write a program
to print the following output
#include<iostream.h>
int main()
{
int i,j,p;
for(i=1;i<=5;i++)
{
for(j=1;j<=i;j++)
cout<<'
';
for(j=1;j<=i;j++)
cout<<i<<'
';
cout<<endl;
}
return 0;
}
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