foo.c: In function 'main':
foo.c:5:9: warning: 'gets' is deprecated [-Wdeprecated-declarations]
5 | gets(a);
| ^~~~
In file included from foo.c:1:
/nix/store/y8wfrgk7br5rfz4221lfb9v8w3n0cnyd-glibc-2.37-8-dev/include/stdio.h:605:14: note: declared here
605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
| ^~~~
foo.c:6:17: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
6 | int n = strlen(a),min=0;
| ^~~~~~
foo.c:2:1: note: include '<string.h>' or provide a declaration of 'strlen'
1 | #include<stdio.h>
+++ |+#include <string.h>
2 | int main()
foo.c:6:17: warning: incompatible implicit declaration of built-in function 'strlen' [-Wbuiltin-declaration-mismatch]
6 | int n = strlen(a),min=0;
| ^~~~~~
foo.c:6:17: note: include '<string.h>' or provide a declaration of 'strlen'
/nix/store/74y3751gsixaz9797ib0hp7c658sp1y5-binutils-2.40/bin/ld: /tmp/ccqotFpU.o: in function `main':
foo.c:(.text.startup+0x26): warning: the `gets' function is dangerous and should not be used.
[Hydro](https://hydro.ac)提供评测服务