Compilare: user.cpp: In function ‘int main()’: user.cpp:53:39: warning: unused variable ‘k’ [-Wunused-variable] int cerinta, n, i, j, cnt, t = 0, k, poz1, poz2, maxim = 0; ^ user.cpp:53:42: warning: unused variable ‘poz1’ [-Wunused-variable] int cerinta, n, i, j, cnt, t = 0, k, poz1, poz2, maxim = 0; ^~~~ user.cpp:53:48: warning: unused variable ‘poz2’ [-Wunused-variable] int cerinta, n, i, j, cnt, t = 0, k, poz1, poz2, maxim = 0; ^~~~ user.cpp:53:54: warning: unused variable ‘maxim’ [-Wunused-variable] int cerinta, n, i, j, cnt, t = 0, k, poz1, poz2, maxim = 0; ^~~~~ user.cpp: In member function ‘void InputReader::adv()’: user.cpp:26:54: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, sizeof(char), BUFF_SIZE, fin); ^