foo.c: In function 'main':
foo.c:7:2: warning: 'gets' is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
  gets(a);
  ^
/tmp/ccRZruo5.o: In function `main':
foo.c:(.text.startup+0x1e): warning: the `gets' function is dangerous and should not be used.

正在同步测试数据，请稍后