Eroare de compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:23:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(st.size()>poz){ ~~~~~~~~~^~~~ main.cpp: In function 'int main()': main.cpp:40:5: error: 'll' was not declared in this scope ll n, m,i,x,y; ^~ main.cpp:41:9: error: 'n' was not declared in this scope in>>n>>m; ^ main.cpp:41:12: error: 'm' was not declared in this scope in>>n>>m; ^ main.cpp:42:9: error: 'i' was not declared in this scope for(i=1; i<=m; ++i){ ^ main.cpp:43:13: error: 'x' was not declared in this scope in>>x>>y; ^ main.cpp:43:16: error: 'y' was not declared in this scope in>>x>>y; ^ main.cpp:48:9: error: 'i' was not declared in this scope for(i=1; i<=n; ++i){ ^ Non zero exit status: 1