Compilare: user.cpp: In function ‘int main()’: user.cpp:47:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < euler.size()-1; ++ i){ ^ user.cpp:53:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < euler.size(); ++ i){ ^ user.cpp:54:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i + (1<<j) > euler.size()-1) break; ^ user.cpp:55:52: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(nivel[dp[i][j-1]] < nivel[dp[i+(1<<j-1)][j-1]]){ ^ user.cpp:57:40: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] }else dp[i][j] = dp[i+(1<<j-1)][j-1]; ^