Part 1

#include <iostream>
using namespace std;
int main()
{
int x,y,sum,diff,product,modules,Division;
cout << "enter first nnumber \n";
cin>>x;
cout << "enter second nnumber \n";
cin>>y;
sum=x+y;
diff=x-y;
product=x*y ;
modules=x%y;
Division=x/y;
cout <<"sum:"<<sum<<endl;
cout <<"diff:"<<diff<<endl;
cout <<"product:"<<product<<endl;
cout <<"modules:"<<modules<<endl;
cout <<"Division:"<<Division<<endl;
return 0;
}

Patrt 2
#include <iostream>
using namespace std;
int main()
{
float a,b,c;
cout << "enter three nnumber \n";
cin>>a>>b>>c;
if(a>b)
{
if(a>c)
cout << "largest value:"<<a<<endl;
else
 cout << "largest value:"<<c<<endl;
}
else
if(b>c)
{
cout << "largest value:"<<b<<endl;
}
else
{ cout << "largest value:"<<c<<endl;
}
return 0;
}

Part 3
#include <iostream>

using namespace std;

int main()
{char fname[20],lname[20],addres[20], sex[10],grade;
int age,maths,c,java,sport,courseid,Totalmark,average;
cout<<"enter fname;"<<endl;
cin>>fname;
cout <<"enter lname;"<<endl;
cin>>lname;
cout<<"enter address;"<<endl;
cin>>addres;
cout<<"enter sex;"<<endl;
cin>>sex;
cout<<"enter courseid;"<<endl;
cin>>courseid;
cout<<"enter age;"<<endl;
cin>>age;
cout<<"enter maths;"<<endl;maths;
cin>>maths;
cout<<"enter c++:"<<endl;
cin>>c;
cout<<"enter java:"<<endl;
cin>>java;
cout<<"enter sport:"<<endl;
cin>>sport;
Totalmark=maths+c+java+sport;
average=(Totalmark)/4;

cout<<"first name;"<<fname<<endl;
cout<<"last name;"<<lname<<endl;
cout<<"address;"<<addres<<endl;
cout<<"sex;"<<sex<<endl;
cout<<"courseid;"<<courseid<<endl;
cout<<"maths:"<<maths<<endl;
cout<<"c++:"<<c<<endl;
cout<<"java:"<<java<<endl;
cout<<"sport:"<<sport<<endl;
cout<<"Totalmark="<<Totalmark<<endl;
cout<<"average="<<average<<endl;

if(average>90&&average<100)
{
cout<<"grade=A";
}
else if(average>80&&average<90)
{
cout<<"grade=B";
}
else if(average>70&&average<80)
{
cout<<"grade=C";
}
else if(average>50&&average<70)
{
cout<<"grade=D";
}
else if(average<50)
{
cout<<"grade=F";
}
else
 cout<<"please enter the correct number";
return 0;
}

Part 4
#include <iostream>
using namespace std;
int main()
{
//declearing variable
char fathe[20],grandfather[20],address[10],gender [5];int age;
cout <<"enter fathe" <<endl;
cin >>fathe;
cout <<"enter grandfather" <<endl;
cin >>grandfather;
cout <<"enter address" <<endl;
cin >>address;
cout <<"enter gender" <<endl;
cin >>gender;
cout <<"enter age" <<endl;
cin >>age;
//displying out print on consolt
cout<<"my full information is listed selon"<<endl;
cout<<"fathe;"<<fathe<<endl;
cout<<"grandfather;"<<grandfather<<endl;
cout<<"address;"<<address<<endl;
cout<<"gender;"<<gender<<endl;
cout<<"age;"<<age<<endl;

return 0; By keybord
}

#include <iostream>
using namespace std;
int main()
{
int area,length,width;
cout <<"enter the length of rectangle \n";
cin >>length;
cout <<"enter the width of rectangle\n";
cin >>width;
area=length*width;
cout <<"area of rectangle="<<area;
return 0; }

by keybord
#include <iostream>
using namespace std;
int main()
{
int area, l=5,w=4;
area= l*w;
cout <<"area of rectangle is "<<area;
return 0;

} no keybord
#include <iostream>
using namespace std;
int main()
{
//declaraing varible
char fname[20],lname[20],address[10],gender[20];
int age,maths,c,java,sport,total,avg;
//reading avalue from akeybord
cout <<"inter fnamename "<<endl;
cin >>fname;
cout <<"inter lname "<<endl;
cin >>lname;
cout <<"inter address "<<endl;
cin >>address;
cout <<"inter gender "<<endl;
cin >>gender;
cout <<"inter age "<<endl;
cin >>age;
cout <<"inter maths "<<endl;
cin >>maths;
cout <<"inter c "<<endl;
cin >>c;
cout <<"inter java "<<endl;
cin >>java;
cout <<"inter sport "<<endl;
cin >>sport;
cout <<"inter total "<<endl;
total=maths+c+java+sport;
avg=maths+c+java+sport/5;
// desplying out put on console
cout <<"my full information is listed below "<<endl;
cout <<"fname:"<<fname<<endl;
cout <<"lname:"<<lname<<endl;
cout <<"address:"<<address<<endl;
cout <<"gender:"<<gender<<endl;
cout <<"age:"<<age<<endl;
cout <<"maths:"<<maths<<endl;
cout <<"c:"<<c++ <<endl;
cout <<"java:"<<java<<endl;
cout <<"sport:"<<sport<<endl;
total=maths+c+java+sport;
avg=maths+c+java+sport/5;
//desplaying out put on console
cout <<"fname:"<<fname<<endl;
cout <<"lname :"<<lname<<endl;
cout <<"address :"<<address<<endl;
cout <<"gender :"<<gender<<endl;
cout <<"age :"<<age<<endl;
cout <<"maths :"<<maths<<endl;
cout <<"c:"<<c<<endl;
cout <<"java :"<<java<<endl;
cout <<"sport :"<<sport<<endl;
cout <<"avg :"<<avg<<endl;
cout <<"total :"<<total<<endl;
return 0;
}

By keybord
#include <iostream>
using namespace std;
int main()
{char fname[20],lname[20],addres[20],grade;
int age,maths,c,java,sport,courseid,Totalmark,average;
cout<<"enter fname;"<<endl;
cin>>fname;
cout <<"enter lname;"<<endl;
cin>>lname;
cout<<"enter address;"<<endl;
cin>>addres;
cout<<"enter courseid;"<<endl;
cin>>courseid;
cout<<"enter age;"<<endl;
cin>>age;
cout<<"enter maths;"<<endl;maths;
cin>>maths;
cout<<"enter c:"<<endl;
cin>>c;
cout<<"enter java:"<<endl;
cin>>java;
cout<<"enter sport:"<<endl;
cin>>sport;
Totalmark=maths+c+java+sport;
average=(maths+c+java+sport)/4;

cout<<"first name;"<<fname<<endl;
cout<<"last name;"<<lname<<endl;
cout<<"address;"<<addres<<endl;
cout<<"courseid;"<<courseid<<endl;
cout<<maths<<endl;
cout<<c<<endl;
cout<<java<<endl;
cout<<sport<<endl;
cout<<"Totalmark="<<Totalmark<<endl;
cout<<"average="<<average<<endl;

if(average>90&&average<100)
{
cout<<"grade=A";
}
else if(average>80&&average<90)
{
cout<<"grade=B";
}
else if(average>70&&average<80)
{
cout<<"grade=C";
}
else if(average>50&&average<70)
{
cout<<"grade=D";
}
else if(average<50)
{
cout<<"grade=F";
}
else
cout<<"please enter the correct number";
return 0;
}

#include <iostream>

using namespace std;

int main()
{
//declare variable
int number,nagativ;
cout <<"inter any number "<<endl;
cin>>number;
if (number>0)
{
 cout<<"the enterd number is "<<number<<endl;
}
else
{

nagativ =-(number);
cout <<"the enterd number is "<<number<<endl;
cout <<"the change number is "<<nagativ<<endl;
}
return 0;
}

#include <iostream>

using namespace std;

int main()
{
int a=4,b=2,sum,pro,diff,quo,rem;
sum=a+b;
diff=a-b;
pro=a*b;
quo=a/b;
rem=a%b;
cout<<sum<<endl<<pro<<endl<<diff<<endl<<quo<<endl<<rem;

return 0;
}

include <iostream>
using namespace std;
int main()
{
int a,b; //a:?,b:?
a=10; //a:10,b:?
b=4; //a:10,b:4
a=b; //a:4,b:4
b=7; //a:4,b:7
cout<<"a:"<<endl<<"a:"<<endl<<"b:"<<endl<<"b;"<<endl;
return 0;
}

#include <iostream>

using namespace std;

int main()
{
int a=1,b=4;
cout <<(a>b)<<endl;
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int a=1,b=4;
cout <<((a!=b)||(4>7))<<endl;
return 0;
}

#include <iostream>

using namespace std;

int main()
{
int a=1,b=4;
cout <<!((a!=b)&&(42>7))<<endl;
cout <<!4<<endl;
return 0;
}
#include <iostream>
using namespace std;
int main()
{
int sum=10,pro=5,diff=15,quo=25,rem=12;
sum+=21;
pro*4;
diff-=8;
quo/=5;
rem%=3;
cout<<sum<<endl;

return 0;
}

#include <iostream>
using namespace std;
int main()
{
int sum=10,pro=5,diff=15,quo=25,rem=12;
sum+=21; //sum=sum+21
pro*4; //pro=pro*4
diff-=8; //diff=diff-8
quo/=5; //quo=quo/5
rem%=3; //rem=rem%3
cout<<sum<<endl;

return 0;
}

#include <iostream>

using namespace std;

int main()
{
int sum=10,pro=5,diff=15,quo=25,rem=12;
sum+=21; //sum=sum+21
pro*4; //pro=pro*4
diff-=8; //diff=diff-8
quo/=5; //quo=quo/5
rem%=3; //rem=rem%3
cout <<sum <<endl <<pro <<endl <<diff <<endl <<quo <<endl <<rem <<endl;

return 0;
}

#include <iostream>

using namespace std;

int main()
{
int sum=10;
int x=sum++;
cout <<x<<endl<<sum<<endl;
return 0;
}

#include <iostream>
using namespace std;
int main()
{
double a=6.80,b=4.7,c;
c=(a>b)?a:b;
cout <<c<<endl;
cout <<sizeof(int);
cout <<sizeof (double);

return 0;
}

#include <iostream>
using namespace std;
int main()
{
cout<<"china kassege"<<endl;
return 0;
}
#include <iostream>
using namespace std;
int main()
{
char fname[20],lname[20],adress[20],grade;
int age,Totalmark,civic,maths,java,average;
cout<<"enter fname"<<endl;
cin>>fname;
cout<<"enter lname"<<endl;
cin>>lname;
cout<<"enter adress"<<endl;
cin>>adress;
cout<<"enter age"<<endl;
cin>>age;
cout<<"enter civic"<<endl;
cin>>civic;
cout<<"enter maths"<<endl;
cin>>maths;
cout<<"enter java"<<endl;
cin>>java;
Totalmark=(civic+maths+java);
average=(Totalmark)/3;
cout<<"fname="<<fname<<endl;
cout<<"lname="<<lname<<endl;
cout<<"adress="<<adress<<endl;
cout<<"age="<<age<<endl;
cout<<"civic="<<civic<<endl;
cout<<"maths="<<maths<<endl;
cout<<"java="<<java<<endl;
cout<<"Totalmark="<< Totalmark<<endl;
cout<<"average="<< average<<endl;

if (civic>90&&civic<100)
{
 cout<<"grade of civic=A"<<endl;
}
else if (civic>=80&&civic<=90)
{
cout<<"grade of civic=B"<<endl;
}
else if (civic>=70&&civic<=80)
{
cout<<"grade of civic=C"<<endl;
}
else if (civic>=60&&civic<=70)
{
cout<<"grade of civic=D"<<endl;
}
else if (civic>=50&&civic<=60)
{
cout<<"grade of civic=F"<<endl;
}
else
cout<<"grade of civic=Not yet compitent"<<endl;

if (maths>90&&maths<100)
{
cout<<"grade of maths=A"<<endl;
}
else if (maths>=80&&maths<=90)
{
cout<<"grade of maths=B"<<endl;
}
else if (maths>=70&&maths<=80)
{
cout<<"grade of maths=C"<<endl;
}
else if (maths>=60&&maths<=70)
{
cout<<"grade of maths=D"<<endl;
}
else if (maths>=50&&maths<=60)
{
 cout<<"grade of maths=F"<<endl;
}
else
cout<<"grade of maths=Not yet compitent"<<endl;

if (java>90&&java<100)
{
cout<<"grade of java=A"<<endl;
}
else if (java>=80&&java<=90)
{
cout<<"grade of java=B"<<endl;
}
else if (java>=70&&java<=80)
{
cout<<"grade of java=C"<<endl;
}
else if (java>=60&&java<=70)
{
cout<<"grade of java=D"<<endl;
}
else if (java>=50&&java<=60)
{
cout<<"grade of java=F"<<endl;
}
else
cout<<"grade of java=Not yet compitent"<<endl;
return 0;
}

Assegemnte oprater
#include <iostream>

using namespace std;

int main()
{
int i=10,j,k,l,y,z;
j=++i;
cout << j<<" ";
cout << i<<endl;
k=i++;
cout << k<<" ";
cout << i<<endl;
l=--k;
cout << l<<" ";
cout << k<<endl;
y=--i;
cout << y<<" ";
cout << i<<endl;
z=y--;
cout << z<<" ";
cout << y<<endl;
return 0;
}
#include<iostream>
using namespace std;
int main()
{
int no;
cout<<"Enter any number\n";
cin>>no;
switch(no)
{
case 1:
cout<<"Monday";
break;
case 2:
cout<<"Tuesday";
break;
case 3:
cout<<"Wednesday";
break;
case 4:
cout<<"Thrusday";
break;
case 5:
 cout<<"Friday";
break;
case 6:
cout<<"Saturday";
break;
case 7:
cout<<"Sunday";
break;
default:
cout<<"Invalid input";
}
return 0;
}

#include<iostream>
using namespace std;
int main()
{
int no;
cout<<"Enter any number\n";
cin>>no;
switch(no)
{
case 1:
cout<<"January";
break;
case 2:
cout<<"February";
break;
case 3:
cout<<"March";
break;
case 4:
cout<<"April";
break;
case 5:
cout<<"May";
break;
 case 6:
cout<<"June";
break;
case 7:
cout<<"July";
break;
case 8:
cout<<"August";
break;
case 9:
cout<<"September";
break;
case 10:
cout<<"October";
break;
case 11:
cout<<"November";
break;
case 12:
cout<<"December";
break;
case 13:
cout<<"qaguma";
break;
default:
cout<<"Invalid input";
}
return 0;
}

#include<iostream>
using namespace std;
int main()
{
int no;
cout<<"Enter any number and Desplay A-Z\n";
cin>>no;
switch(no)
{
case 1:
cout<<"A";
break;
case 2:
cout<<"B";
break;
case 3:
cout<<"C";
break;
case 4:
cout<<"D";
break;
case 5:
cout<<"E";
break;
case 6:
cout<<"F";
break;
case 7:
cout<<"G";
break;
case 8:
cout<<"H";
break;
case 9:
cout<<"I";
break;
case 10:
cout<<"J";
break;
case 11:
cout<<"K";
break;
case 12:
cout<<"L";
break;
case 13:
cout<<"M";
break;
case 14:
cout<<"N";
break;
case 15:
cout<<"O";
break;
case 16:
cout<<"P";
break;
case 17:
cout<<"Q";
break;
case 18:
cout<<"R";
break;
case 19:
cout<<"S";
break;
case 20:
cout<<"T";
break;
case 21:
cout<<"U";
break;
case 22:
cout<<"V";
break;
case 23:
cout<<"W";
break;
case 24:
cout<<"X";
break;
case 25:
cout<<"Y";
break;
 case 26:
cout<<"Z";
break;
default:
cout<<"Invalid input";
}
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int a;
cout<<"enter two numbers \n";
cin>>a;
if (a%4==0)
cout <<"even\n";
else
cout<<"odd\n";

return 0;
}
//write ac++ programre display3 number3 2-30 inclnsiva
#include <iostream>

using namespace std;

int main()
{
for(int k=5; k<=10; k++)
cout<<k<<""<<endl;
return 0;
}

#include <iostream>

using namespace std;

int main()
{
int j=100;
while (j<=35);
{
 cout<<j<<"\t";
j=j+5;
}
return 0;
}

#include <iostream>

using namespace std;

int main()
{
int i=10;
do{
cout<<i<<'\n';
i=i+5;

} while (i<=35);
cout<<"hi";

return 0;
}

#include <iostream>

using namespace std;

int main()
{
int sum=0;
for(int i=1; i<=100; i++)
{
sum=sum +i;
}
cout<<"sum of number from 1 to 100"<<sum<<endl;
return 0;
}

#include <iostream>

using namespace std;

int main()
{
for(int i=10; i>=1; i--)
 cout<<i<<""<<endl;
return 0;
}

#include <iostream>

using namespace std;

int main()
{
for(int i=1; i<=5;i++)
{
for(int j=1;j<=i;j++)
cout<<j<<endl;

}
return 0;
}

#include <iostream>

using namespace std;

int main()
{
for(int i=1; i<=5;i++)
{
for(int j=1;j<=i;j++)
{
cout<<j<<" ";
}

cout<< endl;
}
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int i, j;
cout << "Enter number of rows"<<endl;

for(int i=1;i<=6;i++)
{
for(int j=1;j <=i;j++)
{
cout << "*";
}
cout << "\n";
}
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int i, j;
cout << "Enter number of rows"<<endl;

for(int i=1;i<=6;i++)
{
for(int j=1;j <=i;j++)
{
cout << "*";
}
cout << "\n";
}
return 0;
}

#include <iostream>

using namespace std;

int main()
{
for(int i=1; i<=5;i++)
{
for(int j=1;j<=i;j++)
{

cout<<i<<" ";

} cout<<endl;}

return 0;
}
#include <iostream>
using namespace std;

int main()
{
for(int i=5; i>=1;i--)
{
for(int j=5;j>=i;j--)
{

cout<<j<<" ";

} cout<<endl;}

return 0;
}

#include <iostream>
using namespace std;

int isPrimeNumber(int);

int main()
{
bool isPrime;
for(int n = 100; n < 200; n++) {
// isPrime will be true for prime numbers
isPrime = isPrimeNumber(n);

if(isPrime == true)
cout<<n<<" ";
}
return 0;
}

// Function that checks whether n is prime or not

for(int i = 2; i <= n/2; i++) {

#include <iostream>

using namespace std;

int main()
{
int sum=0 ;
int number;
//take input from the user
cout<<"enter the number"<< endl;
cin>>number;
for (int number;number>=0;number++)
{
//add all positive number;
sum+=number;
//take input again if the number is positive
cout<<"enter in number:";
cin>> number;
}
//display the sum
cout<<"\nthe sum is "<<sum<<endl;

return 0;
}

#include <iostream>

using namespace std;

int main()
{
for(int i=1; i<=5;i++)
{
for(int j=1;j<=i;j++)
{

cout<<i<<" ";

} cout<<endl;}

return 0;
}