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  1. #pragma GCC optimize ("Ofast")
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. #define main dummy_main
  5. int main(){
  6.   return 0;
  7. }
  8. #undef main
  9. int sz;
  10. int arr[10000];
  11. void doit(long long now, int las){
  12.   if(now > 2000000000){
  13.     return;
  14.   }
  15.   arr[sz++] = now;
  16.   if(las-1 >= 0){
  17.     doit(now * 10 + las - 1, las - 1);
  18.   }
  19.   if(las+1 <= 9){
  20.     doit(now * 10 + las + 1, las + 1);
  21.   }
  22. }
  23. class Solution{
  24.   public:
  25.   vector<int> countSteppingNumbers(int low, int high){
  26.     int i;
  27.     vector<int> res;
  28.     if(sz==0){
  29.       int i;
  30.       arr[sz++] = 0;
  31.       for(i=(1);i<(10);i++){
  32.         doit(i, i);
  33.       }
  34.       sort(arr, arr+sz);
  35.     }
  36.     for(i=(0);i<(sz);i++){
  37.       if(low <= arr[i]  &&  arr[i] <= high){
  38.         res.push_back(arr[i]);
  39.       }
  40.     }
  41.     return res;
  42.   }
  43. }
  44. ;
  45. // cLay varsion 20191006-1
  46.  
  47. // --- original code ---
  48. // #define main dummy_main
  49. // {}
  50. // #undef main
  51. // 
  52. // int sz, arr[1d4];
  53. // 
  54. // void doit(ll now, int las){
  55. //   if(now > 2d9) return;
  56. //   arr[sz++] = now;
  57. //   if(las-1 >= 0) doit(now * 10 + las - 1, las - 1);
  58. //   if(las+1 <= 9) doit(now * 10 + las + 1, las + 1);
  59. // }
  60. // 
  61. // class Solution {
  62. // public:
  63. //   vector<int> countSteppingNumbers(int low, int high) {
  64. //     vector<int> res;
  65. //     if(sz==0){
  66. //       arr[sz++] = 0;
  67. //       rep(i,1,10) doit(i, i);
  68. //       sort(arr, arr+sz);
  69. //     }
  70. //     rep(i,sz) if(low <= arr[i] <= high) res.push_back(arr[i]);
  71. //     return res;
  72. //   }
  73. // };
  74.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/8/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
stdout
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Standard output is empty
https://ideone.com/fJEKdO
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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