Compilare: user.c: In function 'scan': user.c:21: warning: use of 'll' length modifier with 'f' type character user.c:24: warning: use of 'll' length modifier with 'f' type character user.c:27: warning: use of 'll' length modifier with 'f' type character user.c: At top level: user.c:48: warning: conflicting types for built-in function 'pow' user.c: In function 'solve': user.c:77: warning: unused variable 'j' user.c: In function 'print': user.c:101: warning: use of 'll' length modifier with 'f' type character user.c:98: warning: unused variable 'j' user.c: In function 'main': user.c:118: warning: control reaches end of non-void function