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1. Write a C++ program to take input of two numbers and display their sum on screen:
#include
void main( )
{
int num1,num2;
int sum=0;
cout<<“Enter two Numbers : ”;
cin>>num1>>num2;
sum = num1 + num2;
cout<<“The Sum of Two Numbers is : ”<
}
1. Write a program to print all the Prime Numbers between 1 to 100.
#include
void main( )
{
int p=0, i=2, j=1;
while(j <= 100)
{
i=2;
p=0;
while(i<=j/2)
{
if(j%2 == 0)
{
p = 1;
break;
}
i++;
}
if(p == 0)
{
cout<<“The Prime Number is : ”<< j;
}
j++;
}
}
Output:

1. Write a program to input 10 numbers in array and print count of Even and Odd.
#include
void main( )
{
int a[10], i, count1=0, count2=0;
for(i=0;i<10 i="" span="">
{
cout<<“Enter a Number : ”;
cin>>a[i];
}
for(i=0;i<10 i="" span="">
{
if(a[i]%2 == 0)
count1++;
else
count2++;
}
cout<<“The Count of Even Numbers is : ”<
cout<<“The Count of Odd Numbers is : ”<
}
Note: All control structure, array, pointer, functions works same as C Language.

1. Write a program to enter a sentence and Count Numbers of Characters.
#include
#include
void main( )
{
charsentence[30];
inti, count=0;
cout<<“Enter a Sentence : ”;
gets(sentence);
for(i=0; sentence[i] != ‘’;i++)
{
if(sentence[i] == 32)
continue;
else
count++;
}
cout<<“The Number of Characters is : ”<
}
Output:

1. Make a function which will accept a number and print sum of digits.
#include
intsum_of_digit(int);
void main( )
{
intsum=0,num;
cout<<“Enter a Number : ”;
cin>>num;
sum = sum_of_digit(num);
cout<<“Sum is : ”<
}
intsum_of_digit(intnum)
{
int digit, sum = 0;
while(num>0)
{
digit = num % 10;
num = num / 10;
sum = sum + digit;
}
return sum;
}
Output:

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