Compilare: main.cpp: In function 'int mex(std::vector<int>&)': main.cpp:35:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (p[i / 2] == 0 && i % 2 != 0 || i == 0 || i == 2) ~~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:44:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (p[i / 2] == 0 && i % 2 != 0 || i == 0 || i == 2) ~~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int Grundy(int)': main.cpp:54:20: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (p[x / 2] == 0 && x % 2 == 1 || x==0 || x==2) ~~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:67:22: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (p[i / 2] == 0 && i % 2 != 0 || i==2) ~~~~~~~~~~~~~~^~~~~~~~~~~~~