Compilare: main.cpp: In function 'int main()': main.cpp:40:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abx.in","r",stdin); ^ main.cpp:41:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("abx.out","w",stdout); ^ main.cpp:42:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld", &t, &m); ^ main.cpp:44:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ main.cpp: In function 'long long int cibin(long long int)': main.cpp:27:12: warning: 'pas' may be used uninitialized in this function [-Wmaybe-uninitialized] pas<<=1; ~~~^~~~