Compilare: user.cpp: In function ‘int main()’: user.cpp:34:69: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] dp[i][state] = ((dp[i][state] + dp[i - 1][state ^ (1 << k - 1)]) % MOD); ^ user.cpp:42:29: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if((state & (1 << i - 1)) != 0) ^ user.cpp:51:27: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if((state & (1 << i - 1)) != 0) ^