Language: C++

#include<bits/stdc++.h>
typedef long long ll ;
typedef double db;
typedef long double ldb;
typedef unsigned long long ull ;
const double PI = acos(-1) ;

#define pf		  	printf
#define sf			  scanf
#define pb(a)         push_back(a)
#define for0(i,n)          for(int i=0;i<n;i++)
#define for1(i,n)          for(int i=1;i<=n;i++)
#define forab(i,a,b)       for(int i=a;i<=b;i++)
//#define gcd(a, b)     __gcd(a, b)
#define lcm(a, b)     ((a)*((b)/gcd(a,b)))
#define sq(a)		   (a)*(a)
#define nw				"\n"
//#define abs(x)		fabs(x)
#define pcase(z,x)     cout<<"Case "<<z<<": "<<x<<"\n"
#define CIN	ios_base::sync_with_stdio(0); cin.tie(0)
#define max 1000000007

using namespace std;
int n,m,y,x,h,e,l,o;

int main()
{
	CIN;
	int arr[10001]={0};
	vector<int>v;
	cin>>n;
	while(n--)
	{
		cin>>m;
		arr[m]=m;
	}
	cin>>m;l=10001;
	while(m--)
	{
		cin>>x>>y;

		for(int i=0;i!=v.end();i++)
		{
			if(v[i]==x){o=1;break;}
		}
		if(o)	arr[y]=+y;
		else 
		{
			arr[x]=0;
			a
		}
		sort(arr,arr+10001);
		ll sum=0;
		//for(int i=10000,j=0;j<n;i--,j++)
		for0(i,10001)sum+=arr[i];
		cout<<sum<<nw;
		v.pb(y);
		

	}
	
	// ll sum=0;
	// for(i=100000;;i--)
	// {
	// 	sum+=arr[i];
	// }

	//cout<<t<<nw;


	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:30: error: no match for 'operator!=' (operand types are 'int' and 'std::vector<int>::iterator')
   42 |                 for(int i=0;i!=v.end();i++)
      |                             ~^~~~~~~~~
      |                             |       |
      |                             int     std::vector<int>::iterator
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:1:
/usr/include/c++/14/bits/regex.h:1132:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1132 |     operator!=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1132:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1212:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator!=(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1212 |     operator!=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1212:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1305:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1305 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1305:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1379:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1379 |     operator!=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1379:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   'std::vector<int>::iterator' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1473:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1473 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1473:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1547:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1547 |     operator!=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1547:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   'std::vector<int>::iterator' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:1647:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1647 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1647:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/regex.h:2213:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator!=(const match_results<_BiIter, _Alloc>&, const match_results<_BiIter, _Alloc>&)'
 2213 |     operator!=(const match_results<_Bi_iter, _Alloc>& __m1,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:2213:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::__cxx11::match_results<_BiIter, _Alloc>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_pair.h:1052:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator!=(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1052 |     operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1052:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:455:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  455 |     operator!=(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:455:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/stl_iterator.h:500:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  500 |     operator!=(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:500:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/stl_iterator.h:1686:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator!=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1686 |     operator!=(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1686:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
/usr/include/c++/14/bits/stl_iterator.h:1753:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator!=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1753 |     operator!=(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1753:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
In file included from /usr/include/c++/14/bits/char_traits.h:42,
                 from /usr/include/c++/14/string:42,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/postypes.h:197:5: note: candidate: 'template<class _StateT> bool std::operator!=(const fpos<_StateT>&, const fpos<_StateT>&)'
  197 |     operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/postypes.h:197:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::fpos<_StateT>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
In file included from /usr/include/c++/14/string:43:
/usr/include/c++/14/bits/allocator.h:243:5: note: candidate: 'template<class _T1, class _T2> bool std::operator!=(const allocator<_CharT>&, const allocator<_T2>&)'
  243 |     operator!=(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/14/bits/allocator.h:243:5: note:   template argument deduction/substitution failed:
a.cc:42:38: note:   mismatched types 'const std::allocator<_CharT>' and 'int'
   42 |                 for(int i=0;i!=v.end();i++)
      |                                      ^
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54:
/usr/include/c++/14/string_view:651:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator!=(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  651 |     operator!=(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:651:5: note:   template argument deduction/substitution failed:
a.cc:42:3