foo.cc: In function 'int main()':
foo.cc:24:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(i=1;i<n;i++)
  ^~~
foo.cc:27:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   cout<<t;
   ^~~~

自豪的采用jd5进行评测(github.com/masnn/jd5)