Compilare: user.cpp: In constructor ‘unionFind::unionFind(int)’: user.cpp:29:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < uParent.size(); i++) uParent[i] = i; ^ user.cpp: In member function ‘void unionFind::reset()’: user.cpp:34:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < uParent.size(); i++) uParent[i] = i; ^ user.cpp: In function ‘int main()’: user.cpp:103:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k = 0; k < group[j - i].size(); k++) { ^ user.cpp:117:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < group[i].size(); j++) { ^ user.cpp:75:21: warning: unused variable ‘v’ [-Wunused-variable] int n, m, q, u, v, c, i, j, k; ^