Compilare: user.cpp: In function ‘int main()’: user.cpp:32:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d\n", &t); ^ user.cpp: In function ‘void citeste(char*, int&, FILE*)’: user.cpp:142:21: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 300, f); ^ user.cpp: In function ‘bool urmVal(char*, int)’: user.cpp:63:19: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized] val = !val; ^