foo.cc: In function 'int main()':
foo.cc:6:6: warning: unused variable 'k' [-Wunused-variable]
  int k,a[10005],b[10005],c[10005],d[10005],n1,n2,n3;
      ^
foo.cc:6:26: warning: unused variable 'c' [-Wunused-variable]
  int k,a[10005],b[10005],c[10005],d[10005],n1,n2,n3;
                          ^
foo.cc:6:35: warning: unused variable 'd' [-Wunused-variable]
  int k,a[10005],b[10005],c[10005],d[10005],n1,n2,n3;
                                   ^
foo.cc:6:50: warning: unused variable 'n3' [-Wunused-variable]
  int k,a[10005],b[10005],c[10005],d[10005],n1,n2,n3;
                                                  ^~

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。