Compilare: user.cpp: In function ‘int main()’: user.cpp:44:32: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][0][0] = dp[i & 1 ^ 1][1][0]; ^ user.cpp:45:32: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][0][1] = dp[i & 1 ^ 1][1][1]; ^ user.cpp:47:36: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j][0] = dp[i & 1 ^ 1][j - 1][0] + dp[i & 1 ^ 1][j + 1][0]; ^ user.cpp:47:62: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j][0] = dp[i & 1 ^ 1][j - 1][0] + dp[i & 1 ^ 1][j + 1][0]; ^ user.cpp:49:40: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j][1] = dp[i & 1 ^ 1][j - 1][1] + dp[i & 1 ^ 1][j + 1][1]; ^ user.cpp:49:66: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] dp[i & 1][j][1] = dp[i & 1 ^ 1][j - 1][1] + dp[i & 1 ^ 1][j + 1][1]; ^ user.cpp:50:41: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] else dp[i & 1][j][1] = dp[i & 1 ^ 1][j - 1][0] + dp[i & 1 ^ 1][j + 1][1]; ^ user.cpp:50:67: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] else dp[i & 1][j][1] = dp[i & 1 ^ 1][j - 1][0] + dp[i & 1 ^ 1][j + 1][1]; ^