Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:24:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(i,arbore[nod].size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp: In function ‘void parcurgere_euler()’: user.cpp:48:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(i,arbore[nod].size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp: In function ‘void dfs2(int)’: user.cpp:81:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(i,arbore[nod].size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp: In function ‘bool fct(std::vector<int>, std::vector<int>)’: user.cpp:88:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(i,A.size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp:89:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(j,B.size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp: In function ‘bool fct2(std::vector<int>, std::vector<int>)’: user.cpp:97:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(i,A.size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp:98:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for0(j,a.size()) ^ user.cpp:2:34: note: in definition of macro ‘for0’ #define for0(i,n) for(int i=0; i<n; i++) ^ user.cpp: In function ‘void cclear()’: user.cpp:115:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses] trecut[i] = trecut2[i] = sub[i] = tata[i] = first[i] = last[i] = trecut3[i] = 0;