Compilare: user.cpp: In function ‘void fisier()’: user.cpp:40:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(s[p]>='a' && s[p]<='z' || s[p] >= '0' && s[p] <= '9') ^ user.cpp: In function ‘int main()’: user.cpp:51:12: warning: unused variable ‘n’ [-Wunused-variable] int i, n; ^ user.cpp:52:24: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 1601, fin); ^