Compilare: user.cpp: In function ‘void dfs2(int)’: user.cpp:24:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++){ ^ user.cpp: In function ‘void dfs1(int)’: user.cpp:31:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[nod].size(); i++){ ^ user.cpp:46:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[nod].size(); i++){ ^ user.cpp:51:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 1; j < dd[ t[vecin] ].size(); j++){ ^ user.cpp:55:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(val[nod] == lg - dd[ t[nod] ].size() + 1){ ^ user.cpp:60:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(val[nod] > lg - dd[ t[nod] ].size() + 1){ ^ user.cpp:64:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lg - val[nod] < dd[ t[nod] ].size() ){ ^ user.cpp:70:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lg - nval[nod] < dd[ t[nod] ].size() ){ ^ user.cpp: In function ‘int main()’: user.cpp:94:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dd[ t[1] ].size() == lg + 1){ ^