Q&A Discussões
double arr[]={5,2,7,8,11,9};
int n = sizeof(arr) / sizeof(arr[0]);
double sum = 0;
for(int i=0;i<n;i++)
{
sum+= arr[i];
}
double avg = sum / n;
cout<< "avarage ="<< avg<< endl;
return 0;
)
/*what does int n= sizeof(arr[]) /sizeof(arr[0]);
do, can someone explain that line for me*/
0 Voto
3 RespostasI am confused on this
0 Voto
1 Respostawhy does this code output that there is an error because the else statement doesn't have a corresponding if statement?. How do i correct this?
#include <iostream>
using namespace std;
int main() {
int a;
for (int x =0; x<5;x++){
cin>>a;
if (a<1){
cout<<"a cannot be less than 1\n";
}
else if (a>10){
cout <<"a cannot be greater than 10\n";
}
}
else{
cout<<"code can run now"<<endl;
}
return 0;
}
3 Votos
8 Respostasif i download the programs for c++ on my pc ( codebuilds and the compiler ) and i want to write a program in my package ( workspace ) i create a new file and write smthing beginning
#include <iostream>
using namespace std;
int main ()
{
...
}
and i want to run it, it always runs this first program : Hello World. and not my written program how can i run just my written program ?
have i maybe to write anything else as
int main () {} ?
0 Voto
16 Respostashey guys, I've been trying to work out the formula 'v=I*r'. But whenever I run the program and input values for I and r, it doesn't give the right answer.
This is the code
#include <iostream>
using namespace std;
int main() {
int i,r;
int v = i*r;
cout<<"what is the value of i?\n";
cin>>i;
cout<<"what is the value of r?\n";
cin>>r;
cout<<"voltage ="<<v<<endl;
return 0;
}
p/s: I'm new to programming
1 Voto
8 RespostasWhen I enter two numbers the sum is displayed.. but when I input character as yes not y... Then it goes into an infinite loop... can anyone explain why?
int a,b;
char ch;
do
{
cout<<"Enter two numbers: ";
cin>>a>>b;
cout<<"The sum is "<<a+b
<<"\nDo you want to try again (y/n): ";
cin>>ch;
}while(ch=='Y'||ch=='y');
0 Voto
4 Respostasjava learning
0 Voto
1 Respostaif i text 21 it stacks. program says you are a child. you are a teenager. you are adult. how can i delete this "stack".
#include <iostream>
using namespace std;
int main() {
int age;
cin>>age;
if (age>=14){
cout<<"You're a Teenager"<<endl;
}
if (age>=18){
cout<<"You're adult"<<endl;
}
if (age>=0){
cout<<"You're a Child"<<endl;
}
else{
cout<<"Are u stupid ?"<<endl;
}
return 0;
}
0 Voto
4 RespostasWhen I enter two numbers the sum comes.. but when I input character as yes not y... Then it goes into an infinite loop... can anyone explain why?
int a,b;
char ch;
do
{
cout<<"Enter two numbers: ";
cin>>a>>b;
cout<<"The sum is "<<a+b
<<"\nDo you want to try again (y/n): ";
cin>>ch;
}while(ch=='Y'||ch=='y');
0 Voto
2 Respostasjava class Add quot;">"quot;
quot;;">"quot;;"awesome");"dolor""haha""hihi""hoho""huhu");"ipsum""is""sit"{}+=addadd("hehe"add("lorem"add("this"classconstructor(...words)newprint()returnthis.words 1 Voto
4 Respostas#include <iostream>
using namespace std;
class A{
public:
void f1();
};
class B : public A{
public:
virtual void f1();
}
int main()
{
A * obj = new B;
obj.f1();
}
Ques: can we write virtual before an overridden function from the base class?? if yes which f1() should it call base class f1() or derived class f1()???
0 Voto
1 RespostaWhy not working
-4 Votos
4 Respostas