/in/foo.c:2:2: warning: return type defaults to 'int' [-Wimplicit-int]
  main( )
  ^~~~
/in/foo.c: In function 'main':
/in/foo.c:4:4: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    scanf("%d",&m); 
    ^~~~~
/in/foo.c:4:4: warning: incompatible implicit declaration of built-in function 'scanf'
/in/foo.c:4:4: note: include '<stdio.h>' or provide a declaration of 'scanf'
/in/foo.c:10:6: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
      printf("Yes",m);
      ^~~~~~
/in/foo.c:10:6: warning: incompatible implicit declaration of built-in function 'printf'
/in/foo.c:10:6: note: include '<stdio.h>' or provide a declaration of 'printf'
/in/foo.c:10:13: warning: too many arguments for format [-Wformat-extra-args]
      printf("Yes",m);
             ^~~~~
/in/foo.c:12:6: warning: incompatible implicit declaration of built-in function 'printf'
      printf("No");
      ^~~~~~
/in/foo.c:12:6: note: include '<stdio.h>' or provide a declaration of 'printf'