Discussions Q&R
Why do we make an object constructor using this keyword and don't we simple write return { a: x, b:y} in the function?
2 Votes
1 Réponse
#include <iostream>
using namespace std;
int main()
{
int i=20,j=10;
do {j+=i;
i++;}
while(j<=200);
}
how many times loops will run and output of "j"????
1 Vote
5 Réponses
Не совсем понимаю что здесь написано reversed = names.sort( { s1, s2 in return s1 > s2 } )
1 Vote
1 Réponse
Void main()
{
Int x = 10;
Int *y = (&x);
Int ***z = (&y);
Printf("%d %d %d", **z, *y, x);
}
-2 Votes
4 Réponses
var r = (function (x, f = () => x) {
var x;
var y=x;
x = 2;
return (x + y + f());
})(1)
console.log(r);
2 Votes
4 Réponses
html page
<form action="upload.PHP" enctype="multipart/form-data" method="post">
<input type =file name=kk>
<input type=submit>
</submit>
PHP page
upload.PHP
<?PHP
$file=trim($_FILES['kk']['name'];
if(move_uploaded_file($_FILES['kk']['temp_name'],$folder.$file))
{
echo"<h1>file uploaded";
}
else{echo"<h1>not";}
?>
0 Vote
5 Réponses
function Calc(x,y) { z = x + y; return z; } || function Calc(4,5); & document.write ( functionCalc(4,5) ); Are these two same?
0 Vote
1 Réponse
#include <string>
using namespace std;
int main() {
string a = "I am learning C++";
return 0;
} why it has no op?
0 Vote
2 Réponses
main(void)
{ court<<"hi";
} //output is hi
what does it mean 1st line in program
&diff b/w above and void main() is..??
pls ans.. me
0 Vote
5 Réponses
int main()
{
int a, b;
cout << "Enter a number \n";
cin >> a;
cout << "Enter another number \n";
cin >> b;
0 Vote
4 Réponses
During execution, the only error is "Unexpected unqualified-id before { token. (3rd line}. Pls. do help to fix the error.
1 Vote
1 Réponse
why output 100?
#include <iostream>
using namespace std;
int main()
{
int x=1;
for(;x<100;x++)
{if(x>5) continue;
x*=x;
}
cout<<x;
}
0 Vote
2 Réponses
After you put the condition, why do people open up these curly brackets { } If u don't have to even put it..?
2 Votes
2 Réponses
int num = 1;
int number;
int total = 0;
while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << total << endl;
0 Vote
8 Réponses
#include <iostream>
#include <bitset>
int main()
{
int myDecimalNumber;
std::cin >> myDecimalNumber;
std::string binary = std::bitset<8>(myDecimalNumber).to_string(); //to binary
std::cout<<binary<<"\n";
unsigned long decimal = std::bitset<8>(binary).to_long();
std::cout<<decimal<<"\n";
return 0;
}
2 Votes
5 Réponses
Help to fix text length in left side of var in JavaScript section. var aesthetic = { "": "", "l":"hamjakgo nana", };
0 Vote
1 Réponse
can someone please explain why this code keeps telling me complication error instead of outputting the value of speed.
#include <iostream>
using namespace std;
class myClass {
public:
void setcarspeed (int a){
speed=a;
}
int getcarspeed(){
return speed;
}
private:
int speed;
};
int main() {
myClass obj;
obj.setcarspeed (40);
cout<<obj.getcarspeed ;
return 0;
}
2 Votes
3 Réponses
#include <iostream>
using namespace std;
int main() {
int a[4]={1,2,3,4};
a[1]=*(a+2);
*(a+2)=a[3]++;
cout<<a[1]+a[2];
}
could someone explain (comment each line) why the output is 7 ?
1 Vote
4 Réponses
In the code below the output is 2. This code is used in a challenge and I get an error when I select the answer 2. It accepts as correct the answer 1 which I believe is wrong. If you agree please thumbs up.
If you find any other errors please post them here!
#include <iostream>
using namespace std;
int main()
{
for(int i=1; i>=1; i++) {
if(i<1 || i>1){
cout << i;
break;
}
}
return 0;
}
8 Votes
8 Réponses
what is tjis code problem!
#include <iostream>
using namespace std;
int main()
{
int b = 5;
int arr[b] = {11, 35, 62, 555, 989};
int sum = 0;
for (int x = 0; x < 5; x++) {
sum += arr[x];
}
cout << sum << endl;
return 0;
}
I cannot make an array using int variable in order to define array's element number!?
1 Vote
7 Réponses
why we use return in this prog.
#include <iostream>
using namespace std;
int timesTwo(int x) {
return x*2;
}
in
0 Vote
1 Réponse
Hi { I am a new user }. Whenever I run a code it shows error in main(). I am not able to find why can anybody help me. Please.
0 Vote
3 Réponses
#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
-2 Votes
2 Réponses
int[ ][ ] myArr = { {1, 2, 3}, {4}, {5, 6, 7} };
myArr[0][2] = 42;
int x = myArr[1][0]; // 4
0 Vote
1 Réponse
why this output comes 4 and why not -4;
#include<iostream>
using namespace std;
int main() {
int a=4;
int *p=&a;
p-= 8;
cout<<a;
}
0 Vote
3 Réponseswhy if else is not working here
public String theEnd(String str,boolean front)
{
if(front=true)
return str.substring (0,1);
else
return str.substring (str.length()-1,str.length());
}
0 Vote
2 Réponses
is it necessary to put the curly Braces { } after the if() and else? Coz in the code below i didnt put braces and it worked well
1 Vote
4 Réponses
#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
0 Vote
2 Réponses
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 Vote
3 Réponses
i dont get the code on the end what should make the pet giving both Meow and Woof especially for (int i=0; i<2; i++) {
0 Vote
2 Réponses
#include <constream.h>
int main ()
{
int x = 10, y = 3, z;
for (z= 0; z < x;)
z = z++ +y;
cout <<"\n" << z;
return 0;
}
0 Vote
3 Réponses
Consider the following code-:
Static in Test(out int x,int y=4)
{
X=6;
return x*y;
}
static void main( string args[]){
int a;
0 Vote
1 Réponse
If there is an increment operator in an if statement, if (x++>12) { }, will the value of x change in the remaining steps?
0 Vote
2 Réponses
How to pass an array using call by value ? { I have declared an array locally in main and don't want its value to be modified by some other function}
2 Votes
4 Réponses
Given two numbers X and Y, write a function that: 1 returns even numbers between X and Y, if X is greater than Y else it returns
-4 Votes
5 Réponses
How is the result 17 please i need good explanation on this, anybody please?
What is the output of this code?
Int result=0;
for(int i=0; i<5; i++){
if (i==3){
result +=10;
}
else {
result +=i;
}
}
System.out.println(result);
4 Votes
8 Réponses
What is the difference between int, where I write under using namespace std; and then I write it after int main ( ) { };
0 Vote
1 Réponse
wt is output if a=2.0,b=2.5
#include <iostream>
using namespace std;
int main()
{
int a, b;
int sum;
cout << "Enter a number \n";
cin >> a;
cout << "Enter another number \n";
cin >> b;
sum = a + b;
cout << "Sum is: " << sum << endl;
return 0;
}
0 Vote
21 Réponses
int[ ][ ] myArr = { {1, 2, 3}, {4}, {5, 6, 7} };
myArr[0][2] = 42;
int x = myArr[1][0]; // 4
1 Vote
1 Réponse
#include <iostream>
using namespace std;
int sum(int a, int b=42) {
int result = a + b;
return (result);
}
int main() {
int x = 24;
int y = 36;
//calling the function with both parameters
int result = sum(x, y);
cout << result << endl;
//calling the function without b
result = sum(x);
cout << result << endl;
return 0;
}
why is da last function cout 66 and not 48 isn't it suppose to add 24+24?
1 Vote
6 Réponses
help
-2 Votes
5 Réponses
int X[2] [4] = { 1, 2, 3, 4, 5, 6, 7, 8};5 will be the value of and how a. X[0 ][ 1].
b. X[0 ][ 5].
c. X[1 ][ 5].
d. X[1][0]
0 Vote
3 Réponses
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