Compilare: user.cpp:111:15: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int64 h1_tot[1<<(MAX_N/2) + 1]; ^ user.cpp: In function ‘int solve()’: user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:120:5: note: in expansion of macro ‘re’ re (j, h1) { ^ user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:118:3: note: in expansion of macro ‘re’ re (msk, (1<<h1)) { ^ user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:137:5: note: in expansion of macro ‘re’ re (j, h2) { ^ user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:134:3: note: in expansion of macro ‘re’ re (msk, (1<<h2)) { ^ user.cpp:150:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘char BronKerbosch1(int64, int64, int64)’: user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:160:3: note: in expansion of macro ‘re’ re (i, N) ^ user.cpp:165:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (checkbit((P & (~adj[pivot])), i)) { ^ user.cpp:101:33: note: in definition of macro ‘checkbit’ #define checkbit(n,b) ( (n >> b) & 1) ^ user.cpp:91:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:164:3: note: in expansion of macro ‘re’ re (i, N) { ^