Compilare: main.cpp: In function 'void inc()': main.cpp:14:35: 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); ^ main.cpp: In function 'int main()': main.cpp:30:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("algsort.in", "r", stdin); ^