Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:53:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:90:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int findEdge(int, int)’: user.cpp:101:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[x].size(); i++) ^ user.cpp: In function ‘void solveCycle()’: user.cpp:118:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Cycle.size() - 1; i++) ^ user.cpp:151:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < Cycle.size() - 1; i++) ^ user.cpp: In function ‘void DFS3(int, int, int)’: user.cpp:166:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:179:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Cycle.size(); i++) ^ user.cpp:184:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Cycle.size(); i++) ^ user.cpp: In function ‘int findEdge(int, int)’: user.cpp:107:1: warning: control reaches end of non-void function [-Wreturn-type] } ^