View Compilation Error

cc1plus.exe: error: '::main' must return 'int'
0_0_38966794_14483.cpp: In function 'int main()':
0_0_38966794_14483.cpp:22:9: error: 'init' was not declared in this scope; did you mean 'int'?
   22 |         init();
      |         ^~~~
      |         int