Compilare: user.cpp: In function ‘void calcdin()’: user.cpp:107:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < x.size(); ++j) ^ user.cpp:112:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < x.size(); ++i) { ^ user.cpp: In function ‘void sol()’: user.cpp:155:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(nodc != &rad && !nodc->f[a[i]]) ^ user.cpp:157:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nodc->f[a[i]]) ^ user.cpp:158:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] nodc = nodc->f[a[i]]; ^ user.cpp: In function ‘int main()’: user.cpp:170:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cenzura.in", "r", stdin); ^ user.cpp:171:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cenzura.out", "w", stdout); ^