运行 ID: 46311

Main.cc:4:1: error: ‘bol’ does not name a type; did you mean ‘bool’?
 bol ex_37(int n){
 ^~~
 bool
Main.cc: In function ‘void dfs(int, int, int)’:
Main.cc:12:17: error: ‘ex_37’ was not declared in this scope
   if(n>=a) cnt+=ex_37(n);
                 ^~~~~
Main.cc:12:17: note: suggested alternative: ‘._37’
   if(n>=a) cnt+=ex_37(n);
                 ^~~~~
                 ._37
Main.cc:16:6: error: ‘ex_37’ was not declared in this scope
   if(ex_37(i)){
      ^~~~~
Main.cc:16:6: note: suggested alternative: ‘._37’
   if(ex_37(i)){
      ^~~~~
      ._37
Main.cc: In function ‘int main()’:
Main.cc:26:8: warning: the address of ‘int cnt()’ will never be NULL [-Waddress]
  cout<