Discussions Q&R
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << total << endl;
return 0;
}
i neeed a very simple discussion please about the loop i don't understand anything
1 Vote
3 Réponses
Не совсем понимаю что здесь написано reversed = names.sort( { s1, s2 in return s1 > s2 } )
1 Vote
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
Void main()
{
Int x = 10;
Int *y = (&x);
Int ***z = (&y);
Printf("%d %d %d", **z, *y, x);
}
-2 Votes
4 Réponses
Someone should pls check my code countToTwenty = ( n = 1) => {
if ( n == 21) { return};
Console.log(n)
n++;
countToTwenty (n);
}
1 Vote
3 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
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
int m, n; cin>>m>>n; double ** T = new double*[n]; for(int i=0; i<m; i++){ T[i] = new double[m];
}
0 Vote
1 Réponse
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
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
what will be the output of the following function, if it gets called?
int func(){
cout<<1;
return 2;
cout<<3;
}
0 Vote
2 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
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>
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
why we use return in this prog.
#include <iostream>
using namespace std;
int timesTwo(int x) {
return x*2;
}
in
0 Vote
1 Réponse
i want to make my code as neat as possible. This C++ teaches you.
if (A<B) {
cout << "Correct";
}
can i actually do, if (A<B)
{
cout << "Correct";
}
where my { put at below shouldent it be like this? and neater?
Sorry for bad english.
1 Vote
2 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
What is the output of this code? int result = 0; for (int i = 0; i < 5; i++) { if (i == 3) { result += 10; } else {
0 Vote
5 Réponses
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 RéponsesWrote the code right but getting
ExampleProgram.java: error: missing return statement
}
^
1 error
in commant prompt
what to do?
-1 Vote
2 Réponses
why 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
can someone explain the x.length-1 in this program and why sum ends up to be 7?
var x=[1,4,2,1];
var sum=0;
for (i=0;i<x.length-1;i++){
sum+=x[i];
}
document.write(sum)
1 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
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
How to mention something in a print , like we use in ruby #{ } , similary how it can be done in python?
0 Vote
2 Réponses
String a = "a";
String b = "b";
if(a.equals(b)){
System.out.println("a equals b");
}
in above why we wrote " a.equals(b)"
i cant understand.. describe in details plz.. i m a beginner
2 Votes
4 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
in java we can tell what's the exact error by using
catch(Exception e){
e.printStackTrace();
//or
System.out.println(e.getMessage());
// or just printing the exception class
}
is that possible in python in any way ?
3 Votes
5 Réponses
نص السؤال
How many times "Hi" is get printed?
int a = 3; int b = 6;
while(a<b)
{
cout<<"Hi";
a++;
b--;
}
-5 Votes
2 Réponses
#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
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
import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
int[] arr=new int[5];
for(int i=0;i<5;i++)
{
Scanner ch=new Scanner(System.in);
arr[i]=ch.nextInt();
System.out.println(arr[i]);
}
}}
0 Vote
2 Réponses
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 Vote
2 Réponsesis it good or bad practice to put a class name like <div class="480px"></div> and target the class in CSS like .480px { }
0 Vote
1 Réponse
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 Vote
2 Réponses
int num = 1;
int number;
int total = 0;
while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << tota
0 Vote
2 Réponseswhat is the output of this code?Explain in brief how.
var arr = [1,2,3,4]
var X = 1
for (var j=0, j <arr.length,j++){
x*=arr [j]
}
document write (x).
0 Vote
3 Réponses
Please explane me how much percents should be total in color gradients? Or how it works? I thought it should be 100% total: (green+yellow+blue):
background: -ms-radial-gradient(circle, green 40%, yellow 50%, blue 70%);
}
2 Votes
3 Réponses
What is the output of this code? int result = 0; for (int i = 0; i < 5; i++) { if (i == 3) { result += 10; } else {
1 Vote
3 Réponses
why it is not show any output when run this program
#include<iostream>
using namespace std;
int main(){
for(;;){
int i=0;
if(i==1){
cout<<i;
break;
}
++i;
}}
0 Vote
2 Réponses
what have i to do, if i want that the program always writes for example :
0+1
1+2
3+3
6+4
10+5
15+6
...
because now it just writes
1
3
6
10
15
...
and maybe if it works, can i make then
0+1=1
1+2=3
3+3=6
6+4=10
#include <iostream>
using namespace std;
int main(){
int i;
int sum = 0;
for (i = 1; i <= 100; i++){
sum = sum+i;
cout<<sum<<endl;
}
cout<<sum;
return 0;
}
1 Vote
5 Réponses
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