Compilare: user.c: In function ‘main’: user.c:124:7: warning: implicit declaration of function ‘memset’ [-Wimplicit-function-declaration] memset(tr, 0, sizeof tr); ^ user.c:124:7: warning: incompatible implicit declaration of built-in function ‘memset’ [enabled by default] user.c: In function ‘getcharr’: user.c:24:10: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(ssin, 1, BUFF, in); ^