146 23 CUsersAdministratorDesktop未命名1cpp Error rand was not declared in this scope

The error message "'rand' was not declared in this scope" suggests that the function 'rand' is not recognized in the current scope.

To resolve this error, you need to include the appropriate header file at the beginning of your code. In the case of using 'rand' function, you need to include the header file.

Here is an example of how to include the header file in your code:

#include <cstdlib>

int main() {
    // Your code here
    // Use of rand() function
    int randomNumber = rand();

    return 0;
}

By including the header file, the 'rand' function should now be recognized in the current scope