Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:155:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graph[node].size();i++) ^ user.cpp: In function ‘int Get_Size(int)’: user.cpp:162:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graph[node].size();i++) ^ user.cpp: In function ‘bool bigger(char*, char*)’: user.cpp:99:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘bool bigger2(char*, char*)’: user.cpp:119:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:186:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d %d %d %d ",&N,&F,&R,&K); ^ user.cpp:191:20: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(Row,MAX,IN); ^ user.cpp: In function ‘int Search(char*)’: user.cpp:150:9: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] return last; ^