Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:28:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int u, v, d; scanf("%d%d%d", &u, &v, &d); ^ user.cpp: In function ‘void ProcessQueries()’: user.cpp:91:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int x, p; scanf("%d%d", &x, &p); ^