int(number%a==0)
{
count++;
}
.
#include <iostream>
using namespace std;
int main()
{
char choice;
do
{
int program,number;
cout<<"========MENU========\n"
<<"1) PRIME NUMBER\n"
<<"2) RIGHT TRIANGLE\n"
<<"3) FIBONACCI SEQUENCE\n"
<<"4) FACTORIAL\n"
<<"5) EXIT\n"
<<"Enter your Choice:\n";
cin>>program;
//system("CLS");
switch(program)
{
case 1:
{
int number, count; //You can't initialize a variable inside a conditional jump.. declare and initializes it on the next line.
count = 0;
cout<<"Enter a number to check if it is PRIME or NOT";
cin>>number;
for(int a=1; a<=number; a++)
{
if (int(number%a) == 0) // lack of the IF
{
count++;
}
if(count==2)
{
cout<<"That is a Prime Number\n";
}
else
{
cout<<"That is not a Prime Number\n";
}//end else statement
cout<<endl;
break;
}//end case 1
case 2:
{
int a;
cin>>a;
for(int r=1; r<=a; r++) //
{
for(int c=1; c<=r; c++)
{
cout<<"*";
}
cout<<endl;
break;
}//end case 2
case 3:
{
int n, c, first, second, next; // I put the initialization on the next lines.
first = 0;
second = 1;
cout<<"Enter the number of terms of Fibonacci Sequence you want"
<<endl;
cin>>n;
cout<<"First"<<n<<"terms of Fibonacci Sequence are:"<<endl;
for(c=0; c<n; c++)
{
if(c<=1)
next=c;
else
{
next=first+second;
first=second;
second=next;
}
cout<<next<<endl;
}
return 0;
break;
}
case 4:
{
int num, factorial; // you made a mistake here putting "." instead of ",".. put attention! :)
factorial = 1;
cout<<"Enter the number:";
cin>>num;
for(int i=1; i<=num; i++)
{
factorial=factorial*i;
}
cout<<"The factorial of the given number is:"<<factorial<<endl;
cin.get();
return 0;
break;
}
case 5:
cout<<"Program Exit";
break;
defualt:
cerr<<"Invalid Choice!\n";
}
cout<<"Do you wan to try again? [y/n]:";
cin>>choice;
//system("CLS");
}
//while(choice=='y'||choice=='Y');
//cout<<endl;
} // ends SWITCH
} while(choice=='y'||choice=='Y'); // ends DO
cout<<endl;
return 0;
}//end main << lack of "}"Lacking attention? :tongue:
:#include<iostream>
using namespace std;
void main()
{
char choice;
do
{
int program,number;
cout<<"========MENU========\n"
<<"1) PRIME NUMBER\n"
<<"2) RIGHT TRIANGLE\n"
<<"3) FIBONACCI SEQUENCE\n"
<<"4) FACTORIAL\n"
<<"5) EXIT\n"
<<"Enter your Choice:\n";
cin>>program;
system("CLS");
switch(program)
{
case 1:
{
int count=0;
cout<<"Enter a number to check if it is PRIME or NOT";
cin>>number;
for(int a=1;a<number;a++)
{
if(number%a==0)
{
count++;
}
}
if(count!=1)
{
cout<<"That is a Prime Number\n";
}
else if(count==1)
{
cout<<"That is not a Prime Number\n";
}//end else statement
cout<<endl;
break;
}//end case 1
case 2:
{
int x;
cin>>x;
for(int r=1;r<=x;r++)
{
for(int c=1;c<=r;c++)
{
cout<<"*";
}
}
}
case 3:
{
int n,c, first=0,second=1,next;
cout<<"Enter the number of terms of Fibonacci Sequence you want"
<<endl;
cin>>n;
cout<<"First"<<n<<"terms of Fibonacci Sequence are:"<<endl;
for(c=0;c<n;c++)
{
if(c<=1)
next=c;
else
{
next=first+second;
first=second;
second=next;
}
cout<<next<<endl;
}
break;
}
case 4:
{
int num, factorial=1;
cout<<"Enter the number:";
cin>>num;
for(int i=1;i<=num;i++)
{
factorial=factorial*i;
}
cout<<"The factorial of the given number is:"<<factorial<<endl;
cin.get();
break;
}
case 5:{
cout<<"Program Exit";
break;
}
default:
{
cerr<<"Invalid Choice!\n";
}
}
cout<<"Do you wan to try again? [y/n]:";
cin>>choice;
system("CLS");
}while(choice=='y'||choice=='Y');
cout<<endl;
}Yes, means focus.. He must to pay attention when coding..
#include<iostream>
using namespace std;
int main()
{
char ans;
int option, numberinput, height, factorial, multiples;
do
{
system("cls");
cout <<"-o-o-o-o-o-MENU-o-o-o-o-o-\n"
<<"(1) Prime Number\n"
<<"(2) Right Triangle\n"
<<"(3) Fibonacci Sequence\n"
<<"(4) Factorial\n"
<<"(5) exit\n"
<<"Enter your choice: ";
cin >>option;
if(option == 1)
{
do
{
system("cls");
numberinput = 0;
multiples = 0;
cout << "-o-o-o-o-o-Prime Number-o-o-o-o-o-\n"
<<"Enter a number to check: ";
cin >> numberinput;
int checkprime;
for(checkprime = 2;checkprime<=numberinput - 1;checkprime++)
{
if(numberinput%checkprime==0)
{
cout << numberinput << " is not a prime number.\n";
break;
}
}
if(checkprime==numberinput)
cout<<numberinput<<" is a prime number.\n";
else if(numberinput == 1)
cout<<numberinput<<" is a prime number.\n";
cout<<"would you like to try again(y for yes): ";
cin>>ans;
}while(ans=='y'||ans=='Y');
}
else if(option == 2)
{
do
{
system("cls");
height = 0;
cout<<"-o-o-o-o-o-Right Triangle-o-o-o-o-o-\n"
<<"Enter the height of the triangle: ";
cin>>height;
for(int x = 1; x<=height; x++)
{
for(int y = 1; y <= x; y++)
cout<<"*";
cout<< endl;
}
cout<<"would you like to try again(y for yes): ";
cin>>ans;
}while(ans=='y'||ans=='Y');
}
else if(option == 3)
{
do
{
system("cls");
int NoOfTerms = 0, count, first = 0, second = 1, next;
cout<<"-o-o-o-o-o-Fibonacci Sequence-o-o-o-o-o-\n"
"Enter the number of terms of Fibonacci Sequence: "<<endl;
cin>>NoOfTerms;
cout<<"First "<<NoOfTerms<<" terms of Fibonacci Sequence are\n";
for(count = 0; count < NoOfTerms; count++)
{
if(count<=1)
next = count;
else
{
next = first+second;
first = second;
second = next;
}
cout<<next<<endl;
}
cout<<"would you like to try again(y for yes): ";
cin>>ans;
}while(ans=='y'||ans=='Y');
}
else if(option == 4)
{
do
{
system("cls");
numberinput = 0;
factorial = 1;
cout<<"-o-o-o-o-o-Factorial-o-o-o-o-o-\n"
<<"Please enter a number: ";
cin >> numberinput;
for(int counter = 1; counter <= numberinput; counter++)
{
factorial = factorial*counter;
}
cout<<"The factorial of the given number is: " << factorial << endl;
cout<<"would you like to try again(y for yes): ";
cin>>ans;
}while(ans=='y'||ans=='Y');
}
else if(option == 5)
cout<<"Goodbye!\n";
else
{
cout<<"Invalid Input! Please try again!\n";
system("pause");
}
}while(option < 1 || (option>=1 && option <5) || option > 5);
system("pause");
return 0;
}
if(option == 1)
{ ... }
else if(option == 2)
{ ... }Sure, but it doesn't mean they're equally good to use.
