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  1. #pragma GCC optimize ("Ofast")
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. void *wmem;
  5. char memarr[96000000];
  6. template<class T> inline void walloc1d(T **arr, int x, void **mem = &wmem){
  7.   static int skip[16] = {0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
  8.   (*mem) = (void*)( ((char*)(*mem)) + skip[((unsigned long long)(*mem)) & 15] );
  9.   (*arr)=(T*)(*mem);
  10.   (*mem)=((*arr)+x);
  11. }
  12. template<class T1> void sortA_L(int N, T1 a[], void *mem = wmem){
  13.   sort(a, a+N);
  14. }
  15. template<class T1, class T2> void sortA_L(int N, T1 a[], T2 b[], void *mem = wmem){
  16.   int i;
  17.   pair<T1, T2> *arr;
  18.   walloc1d(&arr, N, &mem);
  19.   for(i=(0);i<(N);i++){
  20.     arr[i].first = a[i];
  21.     arr[i].second = b[i];
  22.   }
  23.   sort(arr, arr+N);
  24.   for(i=(0);i<(N);i++){
  25.     a[i] = arr[i].first;
  26.     b[i] = arr[i].second;
  27.   }
  28. }
  29. template<class T, class S> inline S sod_L(T n, S b){
  30.   S res = 0;
  31.   while(n){
  32.     res += n%b;
  33.     n /= b;
  34.   }
  35.   return res;
  36. }
  37. #define main dummy_main
  38. int main(){
  39.   wmem = memarr;
  40.   return 0;
  41. }
  42. #undef main
  43. int val[1000];
  44. int bt[1000];
  45. class Solution{
  46.   public:
  47.   vector<int> sortByBits(vector<int>& A){
  48.     int i;
  49.     dummy_main();
  50.     int N = A.size();
  51.     for(i=(0);i<(N);i++){
  52.       val[i] = A[i];
  53.       bt[i] =sod_L(A[i], 2);
  54.     }
  55.     sortA_L(N, bt, val);
  56.     for(i=(0);i<(N);i++){
  57.       A[i] = val[i];
  58.     }
  59.     return A;
  60.   }
  61. }
  62. ;
  63. // cLay varsion 20200217-1
  64.  
  65. // --- original code ---
  66. // #define main dummy_main
  67. // {}
  68. // #undef main
  69. // 
  70. // int val[1000], bt[1000];
  71. // 
  72. // class Solution {
  73. // public:
  74. //   vector<int> sortByBits(vector<int>& A) {
  75. //     dummy_main();
  76. //     int N = A.size();
  77. //     rep(i,N){
  78. //       val[i] = A[i];
  79. //       bt[i] = sod(A[i], 2);
  80. //     }
  81. //     sortA(N, bt, val);
  82. //     rep(i,N) A[i] = val[i];
  83. //     return A;
  84. //   }
  85. // };
  86.  
Compilation error #stdin compilation error #stdout 0s 0KB
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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/vndDYm
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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