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#pragma GCC optimize ("Ofast")
#include<bits/stdc++.h>
using namespace std;
#define main dummy_main
int main(){
  return 0;
}
#undef main
#define TreeNode dummy_TreeNode
struct TreeNode{
}
;
#undef TreeNode
int sz;
int s[10000];
void solve(TreeNode *n, int dep){
  if(n==NULL){
    return;
  }
  if(sz == dep){
    s[sz++] = 0;
  }
  s[dep] += n->val;
  solve(n->left, dep+1);
  solve(n->right, dep+1);
}
class Solution{
  public:
  int deepestLeavesSum(TreeNode* root){
    sz = 0;
    solve(root, 0);
    return s[sz-1];
  }
}
;
// cLay varsion 20200217-1
 
// --- original code ---
// #define main dummy_main
// {}
// #undef main
// 
// #define TreeNode dummy_TreeNode
// struct TreeNode {};
// #undef TreeNode
// 
// int sz, s[1d4];
// 
// void solve(TreeNode *n, int dep){
//   if(n==NULL) return;
//   if(sz == dep) s[sz++] = 0;
//   s[dep] += n->val;
//   solve(n->left, dep+1);
//   solve(n->right, dep+1);
// }
// 
// class Solution {
// public:
//   int deepestLeavesSum(TreeNode* root) {
//     sz = 0;
//     solve(root, 0);
//     return s[sz-1];
//   }
// };
 

prog.cpp:16:12: error: variable or field ‘solve’ declared void
 void solve(TreeNode *n, int dep){
            ^~~~~~~~
prog.cpp:16:12: error: ‘TreeNode’ was not declared in this scope
prog.cpp:16:12: note: suggested alternative: ‘remove’
 void solve(TreeNode *n, int dep){
            ^~~~~~~~
            remove
prog.cpp:16:22: error: ‘n’ was not declared in this scope
 void solve(TreeNode *n, int dep){
                      ^
prog.cpp:16:25: error: expected primary-expression before ‘int’
 void solve(TreeNode *n, int dep){
                         ^~~
prog.cpp:29:24: error: ‘TreeNode’ has not been declared
   int deepestLeavesSum(TreeNode* root){
                        ^~~~~~~~
prog.cpp: In member function ‘int Solution::deepestLeavesSum(int*)’:
prog.cpp:31:5: error: ‘solve’ was not declared in this scope
     solve(root, 0);
     ^~~~~

Standard output is empty