foo.cc: In function 'int getsum(int, int, int)':
foo.cc:9:3: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
 if(x==0)
   ^

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。