Compilare: user.cpp: In function ‘void DijkstraA(int)’: user.cpp:41:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graf[nod].size();i++) ^ user.cpp:39:13: warning: unused variable ‘cost’ [-Wunused-variable] int cost=(*Heap.begin()).first; ^ user.cpp: In function ‘void DijkstraB(int)’: user.cpp:62:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graf[nod].size();i++) ^ user.cpp:60:13: warning: unused variable ‘cost’ [-Wunused-variable] int cost=(*Heap.begin()).first; ^ user.cpp: In function ‘void DijkstraC(int)’: user.cpp:83:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graf[nod].size();i++) ^ user.cpp:81:13: warning: unused variable ‘cost’ [-Wunused-variable] int cost=(*Heap.begin()).first; ^ user.cpp: In function ‘void Read()’: user.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&M); ^ user.cpp:19:29: 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:22:33: 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:95:36: 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:96:38: 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); ^