Compilare: main.cpp: In function 'int main()': main.cpp:33:32: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] dp[i & 1][x[i]] = dp[i & 1 ^ 1][y[i]] + a; ~~^~~ main.cpp:34:32: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] dp[i & 1][y[i]] = dp[i & 1 ^ 1][x[i]]; ~~^~~ main.cpp:37:51: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] dp[i & 1][j] = min(dp[i & 1][j], dp[i & 1 ^ 1][j] + b); ~~^~~ main.cpp:38:51: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] dp[i & 1][j] = min(dp[i & 1][j], dp[i & 1 ^ 1][x[i]] + c); ~~^~~ main.cpp:39:51: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] dp[i & 1][j] = min(dp[i & 1][j], dp[i & 1 ^ 1][y[i]] + a + c); ~~^~~ main.cpp:42:22: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] fout << min(dp[n & 1 ^ 1][x[n]], dp[n & 1 ^ 1][y[n]] + a) << "\n"; ~~^~~ main.cpp:42:43: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses] fout << min(dp[n & 1 ^ 1][x[n]], dp[n & 1 ^ 1][y[n]] + a) << "\n"; ~~^~~