Compilare: user.cpp: In function ‘void FriendsMoveFromOneBarToAnother(std::vector<int>&)’: user.cpp:65:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &numberFriends, &barOut, &barIn); ^ user.cpp: In function ‘void ProcessingQueries(std::vector<int>&)’: user.cpp:95:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &numberQueris); ^ user.cpp:99:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &queryType); ^ user.cpp:108:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &aux1, &aux2); ^ user.cpp: In function ‘void ReadNumberOfFriendsFromEachBar(std::vector<int>&)’: user.cpp:127:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &friendsInBars[i]); ^ user.cpp: In function ‘void ProcessingTests()’: user.cpp:134:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &numberTests); ^ user.cpp:138:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &numberBars); ^ user.cpp: In function ‘int main()’: user.cpp:150:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("baruri.in","r",stdin); ^ user.cpp:151:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("baruri.out","w",stdout); ^