View Compilation Error

0_0_39286618_12615.cpp: In function 'int main()':
0_0_39286618_12615.cpp:12:24: error: conversion from 'void' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   12 |     string ans= reverse(s.begin(),s.end());
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~