Compilare: user.cpp: In function ‘void Elimin(int)’: user.cpp:40:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < st.size(); i++) { ^ user.cpp: In function ‘bool Solution(int64_t)’: user.cpp:60:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < st.size(); ++j) ^ user.cpp:62:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int t = 0; t < st.size(); ++t) { ^ user.cpp:80:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < st.size() && TotDist(st[i], st[pos]) <= value) { ^ user.cpp:79:9: warning: unused variable ‘v’ [-Wunused-variable] int v = dp[i]; ^