Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp:20: warning: unused variable ‘j’ user.cpp:20: warning: unused variable ‘k’ user.cpp: In function ‘void citire()’: user.cpp:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result