Compilare: main.cpp: In function 'int main()': main.cpp:71:30: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (dp[x][l] || (x == 1) && (l == 0)) ~~~~~~~~~^~~~~~~~~~~ main.cpp:73:10: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if (!(x & (1 << bit)) && gr[l][bit]) ^ main.cpp:48:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("hamilton.in", "r", stdin); ^ main.cpp:49:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("hamilton.out", "w", stdout); ^