Compilare: user.cpp: In member function ‘void Hash::rmKey(long int, long int)’: user.cpp:25:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i=0;i<C[key].size();i++){ ^ user.cpp: In member function ‘bool Hash::isKey(long int, long int)’: user.cpp:35:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i=0;i<C[key].size();i++) ^ user.cpp: In function ‘bool Check()’: user.cpp:58:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<list[node].size();i++){ ^ user.cpp:63:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<nodes.size();i++){ ^ user.cpp:64:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<nodes.size();j++){ ^ user.cpp: In function ‘void Try(long int, long int)’: user.cpp:72:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pas==list[node].size()){ ^ user.cpp:82:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(list[node].size()-pas > need){us[pas] = false; Try(pas+1,need);} ^ user.cpp: In function ‘int main()’: user.cpp:113:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<list[node].size();i++){ ^ user.cpp:117:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<list[newNode].size();j++){ ^ user.cpp:128:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<list[node].size();i++){ ^ user.cpp:139:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if(ans[4]) printf("%ld %ld",4,ans[4]); else ^ user.cpp:140:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] if(ans[3]) printf("%ld %ld",3,ans[3]); else ^ user.cpp:141:41: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld %ld",2,ans[2]); ^ user.cpp:87:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("count.in","r",stdin); ^ user.cpp:88:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("count.out","w",stdout); ^