Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:122:20: error: reference to ‘hash’ is ambiguous if(hash[h])continue; ^ user.cpp:10:6: note: candidates are: bool hash [1000003] bool hash[MOD]; ^ In file included from /usr/include/c++/4.8/bits/stl_bvector.h:1134:0, from /usr/include/c++/4.8/vector:65, from user.cpp:2: /usr/include/c++/4.8/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^ user.cpp:123:17: error: reference to ‘hash’ is ambiguous hash[h]=true; ^ user.cpp:10:6: note: candidates are: bool hash [1000003] bool hash[MOD]; ^ In file included from /usr/include/c++/4.8/bits/stl_bvector.h:1134:0, from /usr/include/c++/4.8/vector:65, from user.cpp:2: /usr/include/c++/4.8/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^ user.cpp:131:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Q.top().op.size();++i)printf("%d ",Q.top().op[i]); ^ user.cpp:94:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perspico.in","r",stdin); ^ user.cpp:95:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perspico.out","w",stdout); ^ user.cpp:96:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:102:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd",&c.mat[i][j]); ^