Compilare: user.cpp: In function ‘void Read()’: user.cpp:93:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dans.in", "r", stdin); ^ user.cpp: In function ‘void read(int&)’: user.cpp:33:39: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, stdin); ^ user.cpp:42:39: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIM, stdin); ^ user.cpp: In function ‘void Read()’: user.cpp:91:20: warning: ‘start’ may be used uninitialized in this function [-Wmaybe-uninitialized] int t, contor, start; ^