运行 ID: 76533

Main.cc:4:16: error: expression list treated as compound expression in initializer [-fpermissive]
 int ackmann(a,b){
                ^
Main.cc:4:16: warning: left operand of comma operator has no effect [-Wunused-value]
Main.cc:4:17: error: expected ‘,’ or ‘;’ before ‘{’ token
 int ackmann(a,b){
                 ^