Compilare: user.cpp: In function ‘int main()’: user.cpp:16:25: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘bool*’ [-Wformat=] while(scanf("%c", &x)!=EOF) ^ user.cpp: In function ‘void cerinta1()’: user.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(K>=v.size()) ^ user.cpp:28:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v.size(); ++i) ^ user.cpp:38:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=K; i<v.size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:13:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("blis.in", "rt", stdin); ^ user.cpp:14:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("blis.out", "wt", stdout); ^ user.cpp:15:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &K); ^