Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < edge[nod].size(); i++ ){ ~~^~~~~~~~~~~~~~~~~~ main.cpp:51:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < edge[nod].size(); i++ ){ ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void debug1()': main.cpp:173:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < Path[i].size(); j++ ) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:194:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < Path[i].size(); j++ ) ~~^~~~~~~~~~~~~~~~