Discussions Q&R
If I don't want to use namespace and use <cstdlib> for std :: cout, it gives an error "string does not name type".
0 Vote
6 Réponses
#include <iostream>
using namespace std;
int main() {
int x; int i=3;
x=++i + i++;
cout << x;
return 0;
}
3 Votes
3 Réponses
#include <iostream>
using namespace std;
int main() {int a, b, sum= a+b;
cout << "Enter 1st number \n";
cin >> a; cout << a <<
2 Votes
3 Réponses
why this output 2 not 3 ?
#include <iostream>
using namespace std;
int main()
{
int x=1;
x=x++;
cout<<++x;
}
0 Vote
5 Réponses
#include <string>
#include <iostream>
using namespace std;
int main() { string colour = "black" ; cout <<" chge"; return 0;}
0 Vote
2 Réponses
using System;
namespace Project {
class MyClass {
public static void Main(string[] args) {
int age; string name;
0 Vote
1 Réponse
I would like to know what namespace Sololearn does. if you ignore it the program works anyway.
0 Vote
2 Réponses
#include <iostream>
using namespace std;
int main() {
int i=0;
for(;i<5;i+=3){
i=i*i;
}cout<<i;
return 0;
}
0 Vote
1 Réponse
What is the reason behind using the line using namespace std... And why not <iostream.h> is used why only <iostream> is used?!
5 Votes
3 Réponses
#include <iostream>
using namespace std;
int manin()
{
int a,b;
int sum=a+b;
cout<< "plz insert the for a ....\n";
cin>>a;
cout
0 Vote
3 Réponses
What is special feature of using namespace std; . does IT strictly required for C plus plus .please explain
0 Vote
2 Réponses
why output llo? could explain?
#include <iostream>
using namespace std;
int main()
{
char *pString="hello";
pString+=2;
cout<<pString;
}
1 Vote
2 Réponses#include <iostream>
using namespace std;
int main() {
cout<<(0==0);
return 0;
}
why the output is 1??
0 Vote
2 Réponses
#include <iostream>
#include <string>
using namespace std;
int main() {
char *p= "this";
p+=2;
char c= 1 + *p;
cout <<c;
0 Vote
4 Réponses
#include <iostream>
using namespace std;
int main()
{
cout<< "Alcacer 2 goals, CR7 1 goal";
cout<< "CR7 is old like Chi
1 Vote
3 Réponses
#include <iostream>
using namespace std;
int main()
{
int num = 1;
while (num < 7) {
cout << "Number: " << num
0 Vote
3 Réponses
Solve it if you are genuis!!!!
What is the output of this code?
#include <iostream>
using namespace std;
int main(){
for(int class=0;class<5;class++)
{
cout<<class<<endl;
}
return 0;}
1 Vote
9 Réponses
So I learned that using a namespace is bad practice. If I plan on writing out the libraries how do I go about it?
2 Votes
4 Réponses
#include <iostream>
using namespace std;
int main()
{
int num = 7;
while (num > 6) {
cout << "Number: " << num;
0 Vote
3 Réponses
#include <iostream>
using namespace std;
int main() {
int i = 3;
i = ++i + i++;
cout<<i;
return 0;
}
0 Vote
3 Réponses
#include <iostream>
using namespace std;
void test(int*, int*);
int main() {
int a = 5, b = 5;
cout << "Before changing:" <
-1 Vote
2 Réponses
how output 26?
#include <iostream>
using namespace std;
int main()
{
int x=1;
for(;x<5;x++)
{
x+=x;
cout<<x;
}
}
0 Vote
2 Réponses#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
What the benfit of using (using namespace std;) in c++programing ?and Can you write aprogram without use it ?
-1 Vote
1 Réponse
In my School I learned that I type iostream.h not iostream and using namespace std what is logic behind it
0 Vote
2 Réponses
#include <string>
using namespace std;
int main() {
string a = "I am learning C++";
return 0;
} why it has no op?
0 Vote
2 Réponses
why this output 5 and why not 2?
#include <iostream>
using namespace std;
void func(int &x)
{
x=5;
}
int main()
{
int x=2;
func(x);
cout<<x;
}
0 Vote
7 Réponseswhy 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 RéponsesI wrote this using devc++ and it ran properly on windws but when i ran it using solo learn it skipped some of the stages, help
0 Vote
3 Réponses
#include <iostream>
using namespace std;
int calc(int &a,int &b,int c=6)
{
a+=b;
b-=c;
c=a+b;
}
int main()
{
int calc(int,int,int);
int x=2,y=3,z=4; cout<<x<<endl<<y<<endl<<z<<endl;
calc(x,y,z); cout<<x<<endl<<y<<endl<<z<<endl;
calc(5,6,z); cout<<x<<endl<<y<<endl<<z<<endl;
return 0;
}
1 Vote
5 Réponses
Namespaces in C++
1 Vote
1 Réponsewhy we use return in this prog.
#include <iostream>
using namespace std;
int timesTwo(int x) {
return x*2;
}
in
0 Vote
1 Réponse
In my school we use #include<iostream.h> and don't use using namespace std and return = 0 ..instead they use getch(); why??
0 Vote
2 Réponses
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
int age = Convert.ToInt32(Console.ReadLine());
int broAge = Convert.ToInt32(Console .Readline());
Console.WriteLine("You are {0} years old", "your bro is {1}", age, broAge );
}
}
}
-1 Vote
7 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
#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
-2 Votes
2 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 Réponses#include <iostream>
using namespace std;
int main()
{
int num = 1;
int number;
int total = 0;
while (num <= 5)
0 Vote
2 Réponses
#include <iostream.
#include <cstdlib>
using namespace std;
int main () {
srand(98);
for (int x = 1; x <= 10; x++) {
0 Vote
2 Réponses
Which compiler is used in the lesson examples? My compiler does/doesn't use some code
2 Votes
3 Réponses
What does the code #include<iostream> using namespace std ; return 0 will output . I bet you will answer but i will take time
1 Vote
2 Réponses
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