Run id: 75379

Main.cc: In function 'int main()':
Main.cc:20:20: warning: left operand of comma operator has no effect [-Wunused-value]
   for(int i=cnt-1;i>=0,i--){
                    ^
Main.cc:20:27: error: expected ';' before ')' token
   for(int i=cnt-1;i>=0,i--){
                           ^