Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:32:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[dad].size(); i++) ^ user.cpp: In function ‘void create_route()’: user.cpp:52:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[dad].size(); i++) ^ user.cpp: In function ‘int Search(int, int)’: user.cpp:69:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<g[x].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:94:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i+1<v.size(); i++) ^ user.cpp:106:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<l.size(); i++) ^ user.cpp: In function ‘int Search(int, int)’: user.cpp:71:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void create_route()’: user.cpp:62:17: warning: ‘node’ may be used uninitialized in this function [-Wmaybe-uninitialized] dad=node; ^