Eroare de compilare: user.cpp: In function ‘void dfs(int&, int&, int&)’: user.cpp:128:24: error: invalid initialization of non-const reference of type ‘int&’ from an rvalue of type ‘int’ dfs(it, cdepth + 1, pos); ^ user.cpp:122:6: error: in passing argument 2 of ‘void dfs(int&, int&, int&)’ void dfs(int& node, int& cdepth, int& pos){ ^ user.cpp: In function ‘int main()’: user.cpp:167:18: error: invalid initialization of non-const reference of type ‘int&’ from an rvalue of type ‘int’ dfs(1, 0, pos); ^ user.cpp:122:6: error: in passing argument 1 of ‘void dfs(int&, int&, int&)’ void dfs(int& node, int& cdepth, int& pos){ ^ user.cpp:160:19: warning: unused variable ‘j’ [-Wunused-variable] int n,q,i,x,y,j; ^ user.cpp: In member function ‘char Parsare::read_ch()’: user.cpp:19:40: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, NRCHAR, fin); ^