Compilare: user.cpp: In function ‘int main()’: user.cpp:23:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( uap[v[j]] == j && v[j] > v[i] ) ^ user.cpp:25:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( lmax < dp[j] ) ^ user.cpp:30:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if ( lmax == dp[j] ) ^