foo.cc:3:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
foo.cc: In function 'int main()':
foo.cc:33:8: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized]
 if(c&&d==i)
       ~^~~

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。