/in/foo.cc: In function 'void output()':
/in/foo.cc:37:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(;k<9;k++)printf("0"); printf("%d",F[n][i]);//不足9位的输出0
         ^~~
/in/foo.cc:37:35: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         for(;k<9;k++)printf("0"); printf("%d",F[n][i]);//不足9位的输出0
                                   ^~~~~~