Question

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c++ cin input not working?

I have been trying to input a string after an integer using the following code in c++.

#include<iostream>
#include<cstdio>
using namespace std;
int main(){
     int n;
     char inp[10];
     cin>>n;
     //fflush(stdin);
     cin.getline(inp,10);
     cout<<inp;
     return 0;
}

When i am compiling and running above code, the program is prompting for input only once and printing nothing. I am using g++ for compiling the code.
Also when i uncommented the line

fflush(stdin) 

(clearing input buffer), the o/p of program remains the same. I don’t understand what is going on here.

Answer 1

#include<iostream>
#include<cstdio>
using namespace std;

int main()
{

 int n;
 char inp[10];
 cin>>n;
 cin.get();//cin.get(); just waits for enter. more approprate for this would be cin.ignore(); because it will flush the input stream for cin.
 cin.getline(inp,10);
 cout<<inp;
 // cin.get(); you could use this so your program wont return0 and close right away.
return 0;
}//tested in this config it works as desired, good luck