Compilare: user.cpp: In function ‘void simulate(long long unsigned int)’: user.cpp:36:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(u[t+j] >= c[t+j]) ^ user.cpp: In function ‘bool ok(long long unsigned int)’: user.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(u[i] != c[i]) ^ user.cpp: In function ‘sol binsearch(long long unsigned int, long long unsigned int)’: user.cpp:84:5: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(ok(mij)) ^