Dyskusje Q&A
static int Pow(int x, int y = 2)
{
int result = 1;
for (int i = 0; i < y; i++) /* this is the for loop that I don't understand.
1 Głos
4 odpowiedzi
why this output 4 not 5;
#include<iostream>
using namespace std;
class A{
public:
int x=3;
A(){x++;}
~A(){x++;}
};
int main() {
A obj;
cout<<obj.x;
}
0 głosów
2 odpowiedzi
is it good or bad practice to put a class name like <div class="480px"></div> and target the class in CSS like .480px { }
0 głosów
1 Odpowiedź
Why does (a) not aqual any thing in this code ?
function test( a , b = 3, c = 42) {
return a + b + c;
}
console.log(test(5));
0 głosów
2 odpowiedzi
int num = 1;
int number;
int total = 0;
while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << tota
0 głosów
2 odpowiedzi
what is that output of this program
#include<iostream.h>
using namespace std;
int main()
{
int e1=5, e2=20, e3 = 15;
int *arr[ 3]= {&e1, &e2, &e3};
court<<*arr[*arr[1]-19];
return 0;
}
0 głosów
3 odpowiedzi
What is the output and how dose it came ?
#include <iostream>
int main() {
std::cout << (10 & 6) << std::endl;
std::cout << (10 | 6) << std::endl;
return 0;
}
0 głosów
3 odpowiedzi
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 głosów
3 odpowiedzi
Why is the output 17 ?
(this is the array modul quiz(SoloLearn))
int result = 0;
for (int i = 0; i < 5; i++){
if (i == 3) {
result += 10;
}else{
result += i;
}
}
System.out.println (result);
0 głosów
5 odpowiedzi
Thanks to the lack of parenthesis and curly braces, the code is always much clearer and more readable than C or C++ code!
Example: C++ vs Python
if (x>0)
{ std::cout << "x is positive."
<< std::endl; }
if x>0:
print("x is positive.")
#Python4president
1 Głos
6 odpowiedzi
is there a way I can store all the values of x in this short code without having to display them using cout?
int main() {
for (int x=0; x<5; x++){
//how do i store the all the values of x without having to display them?//
}
3 głosów
5 odpowiedzi
#include <iostream>
using namespace std;
int main()
{
int b[];
int i=0,sum=0;
while(cin>>b[i])
{sum=sum+b[i];
i++;}
cout<<sum<<endl;
}//what is wrong in this code
//how can I take multiple inputs into an array
//I want to take unknown no. Of inputs
0 głosów
4 odpowiedzi
Int x=0;
For (int i=0; i <8; i++) {
x=i*i;
} what will be the output ; and what will be the value of( i) after the for loop
-1 Głos
2 odpowiedzi
Fill in the blanks to make the image circled and blurred with 30% sepia applied.
-2 głosów
2 odpowiedzi
WY I get a rundum number from memory when I run this code
#include <iostream>
using namespace std;
int main ()
{
int array [5];
for (int x = 0; x < 5; x++) {
array [x] = 42;
cout << x << ': ' << array [x] << endl;
}
return 0;
}
if I replace ': ' with ": " every thing works well.
0 głosów
2 odpowiedzihi, me newbie, started last day, right now I wrote a code using "do", the out is 2,4,6, while condition is <5. why or how output is exceeding 5. thanx in advance
int a=2;
do {
cout<<a <<endl;
a+=2;
}
while (a <5);
0 głosów
5 odpowiedzi
What is the output of the following code?
int a = 11; int b = 12;
int c = 40;
if (a > 100 || b > 3) {
System.out.println(a
-1 Głos
2 odpowiedzi
I am confused on this
0 głosów
1 OdpowiedźCan someone help me please. I can understand the result of the cout << p << endl;
#include <iostream>
using namespace std;
int main() {
int x = 8;
int *p;
p = &x;
cout << *p << endl;
cout << p << endl;
cout << &p;
return 0;
}
1 Głos
6 odpowiedzi
Write a function POPBOOK( ) in C++ to perform delete operation from a dynamic stack, which contains Bno and Title.
0 głosów
1 Odpowiedź
which of the following statements are correct for accessing x?and why?
#include <iostream>
using namespace std;
class test{
public:
int x=9;
};
int main()
{
test t;
test *p=&t;
}
select all that apply:-
a) t.x
b) p.x
c) t->x
d) p->x
1 Głos
3 odpowiedziwhy 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 głosów
8 odpowiedziif 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 głosów
16 odpowiedziwhy this output only comes 3 and why not output 123?
#include<iostream>
using namespace std;
class A{
public:
virtual void f(){cout<<1;}
};
class B:public A{
public:
void f(){cout<<2;}
};
class C:public B{
public:
void f(){cout<<3;}
};
int main()
{
B *p=new C;
p->f();
}
0 głosów
3 odpowiedziI have an iphone 5s and when I test the code, I see no difference from thick and 700. I also wrote:
CSS:
.p thickest {
Font-size: 900;
}
Html:
<p .thickest>This should be "BOLDEST"
</p>
And the last 3 were the same size. Could it be the phone or is the code wrong?
0 głosów
5 odpowiedzi
hey 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 Głos
8 odpowiedziWhen 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 głosów
4 odpowiedzi
java learning
0 głosów
1 Odpowiedź
if 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 głosów
4 odpowiedzi
When 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 głosów
2 odpowiedzijava class Addquot;">"quot;
quot;;">"quot;;"awesome");"dolor""haha""hihi""hoho""huhu");"ipsum""is""sit"{}+=addadd("hehe"add("lorem"add("this"classconstructor(...words)newprint()returnthis.words 1 Głos
4 odpowiedzi
#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 głosów
1 Odpowiedź
Why not working
-4 głosów
4 odpowiedzi