Compilare: user.cpp: In function ‘int main()’: user.cpp:66:15: warning: statement is a reference, not call, to function ‘clear_’ [-Waddress] clear_; ^ user.cpp:66:15: warning: statement has no effect [-Wunused-value] user.cpp:62:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &T); ^ user.cpp:67:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &start); ^ user.cpp:69:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &dist[i]); ^ user.cpp:73:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &c); ^