View Code of Problem 126

#include <iostream>
#include <algorithm>
using namespace std;

typedef struct{
  char num[51];
  int nxs=0;
}dna;

bool cmp(nda a,dna b){
  return a.nxs < b.nxs;
}

int main(){
  int n,m;
  while(scanf("%d %d",&n,&m)!=EOF){
    dna d[m];
    for(int i=0;i<m;i++){
      scanf("%s",d[i].num);
      for(int j=0;j<n;j++){
        for(int k=j+1;k<n;k++){
          if(j>k)
            d[i].nxs ++;
        }
      }
    }
    
    sort(d,d+m,cmp);
    for(int j=0;j<m;j++){
      printf("%s\n",d[j].num);
    }
  }
  return 0;
}
/*
Main.cc:10:10: error: 'nda' was not declared in this scope
 bool cmp(nda a,dna b){
          ^
Main.cc:10:20: error: expected primary-expression before 'b'
 bool cmp(nda a,dna b){
                    ^
Main.cc:10:21: error: expression list treated as compound expression in initializer [-fpermissive]
 bool cmp(nda a,dna b){
                     ^
Main.cc:10:22: error: expected ',' or ';' before '{' token
 bool cmp(nda a,dna b){
                      ^
In file included from /usr/include/c++/4.9/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/4.9/bits/char_traits.h:39,
                 from /usr/include/c++/4.9/ios:40,
                 from /usr/include/c++/4.9/ostream:38,
                 from /usr/include/c++/4.9/iostream:39,
                 from Main.cc:1:
/usr/include/c++/4.9/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = dna*; _Iterator2 = dna*; _Compare = bool]':
/usr/include/c++/4.9/bits/stl_algo.h:1846:27:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1884:70:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1970:55:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:4716:78:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = dna*; _Compare = bool]'
Main.cc:28:19:   required from here
/usr/include/c++/4.9/bits/predefined_ops.h:121:46: error: expression cannot be used as a function
         { return bool(_M_comp(*__it1, *__it2)); }
                                              ^
/usr/include/c++/4.9/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Val_comp_iter<_Compare>::operator()(_Value&, _Iterator) [with _Value = dna; _Iterator = dna*; _Compare = bool]':
/usr/include/c++/4.9/bits/stl_algo.h:1827:34:   required from 'void std::__unguarded_linear_insert(_RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Val_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1855:46:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1884:70:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1970:55:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:4716:78:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = dna*; _Compare = bool]'
Main.cc:28:19:   required from here
/usr/include/c++/4.9/bits/predefined_ops.h:166:37: error: expression cannot be used as a function
  { return bool(_M_comp(__val, *__it)); }
                                     ^
/usr/include/c++/4.9/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_comp_val<_Compare>::operator()(_Iterator, _Value&) [with _Iterator = dna*; _Value = dna; _Compare = bool]':
/usr/include/c++/4.9/bits/stl_heap.h:129:76:   required from 'void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = dna*; _Distance = long int; _Tp = dna; _Compare = __gnu_cxx::__ops::_Iter_comp_val<bool>]'
/usr/include/c++/4.9/bits/stl_heap.h:230:51:   required from 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = dna*; _Distance = long int; _Tp = dna; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_heap.h:334:15:   required from 'void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1673:49:   required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1932:59:   required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1947:59:   required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = dna*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:1969:11:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = dna*; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<bool>]'
/usr/include/c++/4.9/bits/stl_algo.h:4716:78:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = dna*; _Compare = bool]'
Main.cc:28:19:   required from here
/usr/include/c++/4.9/bits/predefined_ops.h:141:37: error: expression cannot be used as a function
  { return bool(_M_comp(*__it, __val)); }
                                     ^
*/

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