title: Which data type should i use to store upto 18 digits in a variable in c++?
body: <p>I am trying to solve a code which requires me to input and output integer value upto 18 digits. Unfortunately i am unable to store the value in any data type. I have already tried</p>
  
  <pre><code>  long int
    unsigned long long 
    long long double,
  </code></pre>
  
  <p>None of these seem to work.Can u Please suggest me something that might help me output the value.</p>