-Calculate the area of a circle
//find the area of circle
#include<iostream>
using namespace std;
int main(){
int r;
cout<<"enter the value of r"<<endl;
cin>>r;
cout<<"area of circle is :" <<3.14*r*r;
return 0;
}
-Find the greatest from two of two number
//greatest of two number
#include <iostream>
using namespace std;
int main(){
int a,b;
cout<<"enter the value of a and b :"<<endl;
cin>>a>>b;
if (a>b)
{
cout<<"greatest number is :"<<a;
}else{
cout<<"greastest number is :"<<b;
}
return 0;
}
-Print the even number b/w 9 and 100
//print the even number b/w 9 & 100
int main() {
cout << "Even numbers between 9 and 100 are:" ;
for (int i = 10; i <= 100; i+=2)
{
cout<<i<<endl;
}
return 0;
}
-Average from 25 exam score
//avrage from 25 exam score
int main() {
int numScores = 25;
double totalScore = 0.0;
cout << "Enter 25 exam scores:" << endl;
for (int i = 1; i <= numScores; i++) {
double score;
cout << "Enter score #" << i << ": ";
cin >> score;
totalScore += score;
}
double average = totalScore / numScores;
cout << "The average score is: " << average << endl;
return 0;
}