Compilare: user.c: In function 'init': user.c:8: warning: implicit declaration of function 'srandom' user.c:8: warning: implicit declaration of function 'time' user.c: In function 'cit': user.c:16: warning: format '%d' expects type 'int *', but argument 3 has type 'long int *' user.c:16: warning: format '%d' expects type 'int *', but argument 4 has type 'long int *' user.c:19: warning: format '%d' expects type 'int *', but argument 3 has type 'long int *' user.c:23: warning: implicit declaration of function 'random' user.c: In function 'rez': user.c:54: warning: implicit declaration of function 'abs' user.c:76: warning: comparison between pointer and integer