Compilare: main.cpp: In function 'void Read()': main.cpp:81:20: warning: unused variable 'node' [-Wunused-variable] for(int i = 1, node, nr; i <= NrQ; i++) ^~~~ main.cpp:81:26: warning: unused variable 'nr' [-Wunused-variable] for(int i = 1, node, nr; i <= NrQ; i++) ^~ main.cpp: In function 'int Parse()': main.cpp:55:52: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(B, BufferSize, 1, stdin), poz = 0; ^ main.cpp:63:52: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(B, BufferSize, 1, stdin), poz = 0; ^ main.cpp: In function 'void Read()': main.cpp:70:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("luff.in", "r", stdin); ^ main.cpp:71:35: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(B, BufferSize, 1, stdin); ^