foo.cc: In function 'int main()':
foo.cc:6:37: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int n,i,j,exist[200005]={0},max=-1,s;
                                     ^

自豪的采用jd5进行评测(github.com/masnn/jd5)

{"receive":"2020-02-16T12:34:42.481Z","handle":"2020-02-16T12:34:42.481Z","done":"2020-02-16T12:34:44.358Z"}