Compilare: user.cpp: In function ‘bool cuplaj(int)’: user.cpp:16:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < v[knot].size(); i ++) { ^ user.cpp:21:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w[vecin].size() == r) { ^ user.cpp:28:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < v[knot].size(); i ++) { ^ user.cpp:33:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w[vecin].size() == r) { ^ user.cpp: In function ‘int main()’: user.cpp:52:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w[i].size() == r) { ^ user.cpp:53:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < w[i].size(); j ++) { ^ user.cpp:74:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || i < stanga[i] ){ ^ user.cpp:81:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || i < stanga[i] ) ^