Compilare: user.cpp: In function ‘int get(int&)’: user.cpp:27:26: warning: no return statement in function returning non-void [-Wreturn-type] ch = nextch(); } } ^ user.cpp: In function ‘int main()’: user.cpp:32:18: warning: variable ‘mx’ set but not used [-Wunused-but-set-variable] int q, a, b, mx; ^ user.cpp: In function ‘char nextch()’: user.cpp:16:37: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(pbuck, 1, BMAX, stdin); } ^ user.cpp: In function ‘int main()’: user.cpp:30:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sumdiv2.in", "r", stdin); ^ user.cpp:31:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sumdiv2.out", "w", stdout); ^