Compilare: main.cpp: In function 'void solve()': main.cpp:24:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(i&1<<j) ^ main.cpp: In function 'void read()': main.cpp:11:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&g); ^ main.cpp:13:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",G+i); ^ main.cpp: In function 'int main()': main.cpp:41:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zebughil.in","r",stdin); ^ main.cpp:42:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zebughil.out","w",stdout); ^