Compilare: user.cpp: In function ‘void BFS(int)’: user.cpp:79:30: warning: unused variable ‘i’ [-Wunused-variable] int coada[3001], pr, ul, i, y; ^ user.cpp: In function ‘void Calc2()’: user.cpp:102:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void Citire()’: user.cpp:33:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fisier, "%d", &n); ^ user.cpp:36:75: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fisier, "%d%d%d%d", &c[i].x, &c[i].y, &c[i].r, &c[i].f); ^