Compilare: user.cpp: In function ‘void read_data()’: user.cpp:174:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", text + 1); ^ user.cpp:182:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &K); ^ user.cpp:184:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", word + 1); ^ user.cpp: In function ‘void process_queries()’: user.cpp:197:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int Q; scanf("%d", &Q); ^ user.cpp:200:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int type; scanf("%d", &type); ^ user.cpp:205:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %c %d%d", &pos, &c, &a, &b); ^ user.cpp:216:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &pos, &ind, &a, &b); ^