Eroare de compilare: main.cpp: In function 'void dfs1(int, int)': main.cpp:129:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < tree[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int, int)': main.cpp:181:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < tree[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp:192:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < tree[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:313:16: error: 'st' was not declared in this scope if(st[path[a]] <= max(pos[a], pos[b]) + 1 && !ans && pos[LCA] + 2 <= max(pos[a], pos[b]) + 1) ^~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:13:29: 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, 4096, fin); ^ Non zero exit status: 1