Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void print()’: user.cpp:45: warning: format ‘%ld’ expects type ‘long int’, but argument 3 has type ‘long long int’ user.cpp: In function ‘bool dijkstra()’: user.cpp:127: error: ‘memcpy’ was not declared in this scope