View Compilation Error

0_0_39430798_20297.cpp: In function 'int main()':
0_0_39430798_20297.cpp:8:24: error: 's' was not declared in this scope
    8 |                 cin >> s;
      |                        ^
0_0_39430798_20297.cpp:9:25: error: 'revese' was not declared in this scope
    9 |                 if(s == revese(a.begin(), a.end())){
      |                         ^~~~~~