Compilare: user.cpp: In function ‘void Dijkstra(int, int)’: user.cpp:75:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < V[nod].size(); i += 2){ ^ user.cpp: In function ‘void Rebuild(int, int, int, int)’: user.cpp:94:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < V[st].size(); i += 2){ ^ user.cpp: In function ‘void Read()’: user.cpp:39:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &M); ^ user.cpp:40:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &A, &B, &C); ^ user.cpp:43:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &X, &Y, &Z); ^ user.cpp: In function ‘int main()’: user.cpp:103:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.in" ,"r", stdin ); ^ user.cpp:104:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.out","w", stdout); ^