"warning: the `gets' function is dangerous and should not be used"

Question

I tried the second example in https://www.sololearn.com/Play/C:

#include <stdio.h>

int main() {
char a[100];

gets(a);

printf("You entered: ");
puts(a);

return 0;
}

But this is all I got back:

You entered: yhchc

./Playground/file0.c: In function 'main':
./Playground/file0.c:6:3: warning: implicit declaration of function 'gets'; did you mean 'fgets'? [-Wimplicit-function-declaration]
6 | gets(a);
| ^~~~
| fgets
../Playground/: /tmp/cc3atX1G.o: in function `main':
file0.c:(.text+0x15): warning: the `gets' function is dangerous and should not be used.

Answer 1

Yeah we should always (not always😁)use" post"