Compilare: main.cpp: In function 'int main()': main.cpp:44:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("order2.in", "r", stdin); ^ main.cpp:45:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("order2.out", "w", stdout); ^ main.cpp: In function 'void bring(int, int)': main.cpp:27:9: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] if (x > y) ^~ main.cpp:27:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]