Run id: 117143

Main.cc: In function 'long long int a(int, int)':
Main.cc:8:8: error: 'm' was not declared in this scope
     if(m==0){
        ^
Main.cc:11:13: error: 'n' was not declared in this scope
     else if(n==0){
             ^
Main.cc:18:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^