/in/ex3.c: In function 'main':
/in/ex3.c:8:5: warning: implicit declaration of function 'gets' [-Wimplicit-function-declaration]
     gets(sentence);
     ^~~~
/in/ex3.c:16:17: warning: unused variable 'scnt' [-Wunused-variable]
     char b; int scnt = 0;
                 ^~~~
/in/ex3.c:16:10: warning: unused variable 'b' [-Wunused-variable]
     char b; int scnt = 0;
          ^
/in/ex3.c:9:10: warning: unused variable 'a' [-Wunused-variable]
     char a;int cnt = 0;
          ^
/in/ex3.c:27:12: warning: array subscript is below array bounds [-Warray-bounds]
         if (tmp != &sentence[cnt - 1]){
            ^
/tmp/ccY6yjF7.o: In function `main':
ex3.c:(.text.startup+0x27): warning: the `gets' function is dangerous and should not be used.