Compilare: user.cpp: In function ‘double bellman_ford()’: user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int cuplaj_cost(double)’: user.cpp:86: warning: unused variable ‘j’ user.cpp: In function ‘int pair_up(int)’: user.cpp:119: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:173: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:174: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:175: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:180: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:185: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result