Compilare: user.cpp: In function ‘void Bellman_Ford()’: user.cpp:57:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<L[p].size(); ++j) ^ user.cpp: In function ‘void citire()’: user.cpp:31:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d %d", &n, &m); ^ user.cpp:34:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d %d %d", &a, &b, &c); ^