Compilare: user.cpp: In function ‘int main()’: user.cpp:47:33: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j] = dp[i & 1 ^ 1][j]; ^ user.cpp:49:55: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j] = max(dp[i & 1][j], dp[i & 1 ^ 1][j - P[i].first] + P[i].second); ^