foo.c: In function 'main':
foo.c:9:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    9 |                 if(year%4!=0) printf("28");break;
      |                 ^~
foo.c:9:44: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    9 |                 if(year%4!=0) printf("28");break;
      |                                            ^~~~~

[Hydro](https://hydro.ac)提供评测服务