4th sem oopc programs in CPP (C++)

Ø Write the following programs in CPP (C++) language.

1.      To find highest of three numbers using if loop.

#include<iostream.h>
int main(){
int a,b,c;
cout<<"Enter three Value of A B and C"<<endl;
cin>>a>>b>>c;
if(a>b){
cout<<"A is max"<<endl;
}else if(b>c){
cout<<"B is max"<<endl;
}else{
cout<<"C is max"<<endl;
}
return 0;
}

2.      Write a program to convert degree Fahrenheit to Celsius.

#include<iostream.h>
#include<conio.h>
void main(){
   float f,c;
   clrscr();
   cout<<"Enter fahrenhit temp: \n";
   cin>>f;
   c=(f-32)*5/9;
   cout<<"Farenhit temp \n"<<f;
   cout<<"Eguivalent of celcius \n"<<c;
   getch();
   return 0;
}

 3.      Write a program to display prime property of a given number.

#include<iostream.h>
#include<conio.h>
int main(){
  int n,i,count=0;
  clrscr();
  cout<<"Enter number";
  cin>>n;
  for(i=1;i<=n;i++){
    if(n%i==0){
    count++;
    }
  }
  if(count==2){
    cout<<"num is prime";
  }else{
    cout<<"num is not prime";
  }
  getch();
  return 0;
}

 4.      Write a program to enter two nxn matrices and display their sum as third matrix.

#include<iostream.h>
#include<conio.h>
int main(){
int a[2][2],b[2][2],c[2][2];
int i,j;
clrscr();
for(i=0;i<2;i++){
for(j=0;j<2;j++){
cout<<"Enter a"<<endl;
cin>>a[i][j];
}
}
for(i=0;i<2;i++){
for(j=0;j<2;j++){
cout<<"Enter b"<<endl;
cin>>b[i][j];
}
}
cout<<"Sum is ";
for(i=0;i<2;i++){
for(j=0;j<2;j++){
c[i][j]=a[i][j]+b[i][j];
cout<<"\t"<<c[i][j];
}
cout<<"\n";
}
getch();
return 0;
}