/in/foo.cc:20:16: error: expected primary-expression before ';' token
  const int N = ;
                ^
/in/foo.cc:21:16: error: expected primary-expression before ';' token
  const int M = ;
                ^
/in/foo.cc:24:10: error: expected primary-expression before ']' token
  int k[N+], kp[N+];
          ^
/in/foo.cc:24:18: error: expected primary-expression before ']' token
  int k[N+], kp[N+];
                  ^
/in/foo.cc:27:10: error: expected primary-expression before ']' token
  }edge[M+];
          ^
/in/foo.cc:28:13: error: expected primary-expression before ']' token
  int path[N+], top;
             ^
/in/foo.cc:29:12: error: expected primary-expression before ']' token
  int ans[N+];
            ^
/in/foo.cc:41:11: error: expected primary-expression before ']' token
  int in[N+];
           ^
/in/foo.cc: In function 'void add(int, int)':
/in/foo.cc:44:6: error: 'edge' was not declared in this scope
      edge[++top].to = v;
      ^~~~
/in/foo.cc:45:23: error: 'path' was not declared in this scope
      edge[top].next = path[u];
                       ^~~~
/in/foo.cc: In function 'void topsort(int)':
/in/foo.cc:50:19: error: expected primary-expression before ';' token
      for (int i = ; i <= n; i++) {
                   ^
/in/foo.cc:51:6: error: 'in' was not declared in this scope
      in[i] = kp[i];
      ^~
/in/foo.cc:51:14: error: 'kp' was not declared in this scope
      in[i] = kp[i];
              ^~
/in/foo.cc:52:48: error: 'k' was not declared in this scope
      if (kp[i] ==  && i != lim) Q.push(node(i, k[i]));
                                                ^
/in/foo.cc:54:31: error: expected primary-expression before ';' token
      for (int cnt = n; cnt >= ; cnt--) {
                               ^
/in/foo.cc:61:6: error: 'ans' was not declared in this scope
      ans[cnt] = Q.top().x; Q.pop();
      ^~~
/in/foo.cc:62:19: error: 'path' was not declared in this scope
      for (int i = path[ans[cnt]]; i; i= edge[i].next) {
                   ^~~~
/in/foo.cc:62:41: error: 'edge' was not declared in this scope
      for (int i = path[ans[cnt]]; i; i= edge[i].next) {
                                         ^~~~
/in/foo.cc:63:10: error: 'in' was not declared in this scope
          in[edge[i].to]--;
          ^~
/in/foo.cc:64:32: error: expected primary-expression before ')' token
          if (in[edge[i].to] == ) {
                                ^
/in/foo.cc:65:57: error: 'k' was not declared in this scope
          if (edge[i].to != lim) Q.push(node(edge[i].to, k[edge[i].to]));
                                                         ^
/in/foo.cc:52:23: error: label 'i' used but not defined
      if (kp[i] ==  && i != lim) Q.push(node(i, k[i]));
                       ^
/in/foo.cc: In function 'void work()':
/in/foo.cc:72:19: error: expected primary-expression before ';' token
      for (int i = ; i <= n; i++) scanf("%d", &k[i]);
                   ^
/in/foo.cc:72:47: error: 'k' was not declared in this scope
      for (int i = ; i <= n; i++) scanf("%d", &k[i]);
                                               ^
/in/foo.cc:73:19: error: expected primary-expression before ';' token
      for (int i = ; i <= m; i++) {
                   ^
/in/foo.cc:74:40: error: 'kp' was not declared in this scope
      scanf("%d%d", &u, &v); add(v, u); kp[u]++;
                                        ^~
/in/foo.cc:76:14: error: too few arguments to function 'void topsort(int)'
      topsort();
              ^
/in/foo.cc:48:7: note: declared here
  void topsort(int lim) {
       ^~~~~~~
/in/foo.cc:77:19: error: expected primary-expression before ';' token
      for (int i = ; i <= n; i++) printf("%d ", ans[i]);
                   ^
/in/foo.cc:77:48: error: 'ans' was not declared in this scope
      for (int i = ; i <= n; i++) printf("%d ", ans[i]);
                                                ^~~
/in/foo.cc:79:19: error: expected primary-expression before ';' token
      for (int i = ; i <= n; i++) topsort(i);
                   ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:83:6: error: return-statement with no value, in function returning 'int' [-fpermissive]
      return ;
      ^~~~~~