Compilare: main.cpp: In function 'char GetChar()': main.cpp:11:38: 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,BUFF_SIZE,stdin); ^ main.cpp: In function 'int main()': main.cpp:95:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("politia.in", "r", stdin); ^ main.cpp:96:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("politia.out", "w", stdout); ^ main.cpp:98:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &ns, &ni, &m, &r, &c); ^