Compilare: main.cpp: In function 'void radix(int (*)[10000001], int)': main.cpp:5:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] #define mask (1 << 8) -1 ~~~~~~~~~^~ main.cpp:16:48: note: in expansion of macro 'mask' ++cnt[(v[it & 1][i] >> (it * 8)) & mask ]; ^~~~ main.cpp:5:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] #define mask (1 << 8) -1 ~~~~~~~~~^~ main.cpp:6:35: note: in expansion of macro 'mask' #define pos(x) (x >> (it * 8) ) & mask ^~~~ main.cpp:21:32: note: in expansion of macro 'pos' v[( it + 1) & 1][index[pos(v[it & 1][i])]++] = v[it & 1][i]; ^~~