How to return an array from a function in c++? I know there is a way for it by using pointers but can someone explain how? Also is there an easier way of doing it?
C++ does not allow to return an entire array as an argument to a function. However, you can return a pointer to an array by specifying the array’s name without an index.
If you want to return a single-dimension array from a function, you would have to declare a function returning a pointer as in the following example:
int * myFunction() {
.
.
.
}
Second point to remember is that C++ does not advocate to return the address of a local variable to outside of the function so you would have to define the local variable as static variable.
In C++ we can easily return a VECTOR from a Function .
// Function
vector < int > solve ()
{
int n, i, value ;
cin>> n;
vector < int > temp;
temp.clear();
for( i=0; i < n; i++)
{
cin >> value;
temp.push_back(value);
}
return temp;
}
// Calling part :
vector < int> ans;
ans.clear() ;
ans = solve();
for( int i=0; i< ans.size(); i++)
cout << ans[i] << " " ;
//^ you can do whatever Operation you like !
//Hope this Helped. 
The below way works in both C and C++.
Just declare the array inside a struct. You can return the struct variable from any function.
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Can you provide the code for how to do it
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@mathecodician from where are you learning the Data Structures & Algorithms? and how is your preparation for INOI going?
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@coder_voder My preparation is going good for INOI. I just completed all the past year ZCO problems. I am learning mainly by random online resources. But mostly from websited like khan academy, commonlounge, geekforgeeks, topcoder tutorials, iarcs study material, and mostly from youtube. But mainly I learning by doing practice problems.
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I think it doesn’t allow return to array. Maybe my knowledge on that still dull. May someone enlighten me please, will greatly appreciate it
Return array from functions in C++ C++ does not allow to return an entire array as an argument to a function. However, you can return a pointer to an array by specifying the array’s name without an index.