View Compilation Error

0_0_34345340_15016.cpp: In function 'void add_edge(int, int, int)':
0_0_34345340_15016.cpp:28:12: error: 'struct edge' has no member named 'nxt'
     e[cnt].nxt = head[u];
            ^
0_0_34345340_15016.cpp: In function 'void dfs(int, int, int)':
0_0_34345340_15016.cpp:34:37: error: 'struct edge' has no member named 'nxt'
     for (int i = head[x];i;i = e[i].nxt) {
                                     ^