Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef __int128_t LL;
#define p pair<LL,LL>
#define x first
#define y second

LL dp[10000][10000];
int main(){
	LL n;
	cin >> n;
	p val[n];
	for(LL i = 0; i < n; i++) cin >> val[i].x >> val[i].y;
	for(LL i = 0; i < n; i++){
		val[i].x += val[i].y;
	}
	LL ans = 0;
	sort(val,val+n);
	reverse(val,val+n);

	for(LL i = 0; i < n; i++){
		val[i].x -= val[i].y;
	}
	LL k = n/2;

	for(LL i = 0; i <= k; i++){
		for(LL j = 0; j <= k; j++){
			dp[i][j] = (LL)1e15;
		}
	}
	dp[0][0] = 0;
	for(LL i = 0; i <= k; i++){
		for(LL j = 0; j <= k; j++){
			if(i > 0){
				dp[i][j] = min(dp[i][j], dp[i-1][j] +(i-1)*val[i+j-1].x + (i)*val[i+j-1].y);
			}
			if(j > 0){
				dp[i][j] = min(dp[i][j], dp[i][j-1] +(j)*val[i+j-1].x + (j-1)*val[i+j-1].y);
			}
			//cout << dp[i][j] << " ";
		}
		//cout << endl;
	}
	LL r = dp[k][k];
	if((n % 2) == 1){
		r += k*val[n-1].x;
		r += k*val[n-1].y;
	}
	if(n == 1){
		cout <<0 << endl;
		return 0;
	} else if(n == 2){
		cout << min(val[0].x+val[1].y,val[1].x+val[0].y);
		return 0;
	}

	cout << r << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'LL' {aka '__int128'})
   11 |         cin >> n;
      |         ~~~ ^~ ~
      |         |      |
      |         |      LL {aka __int128}
      |         std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'short int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'short unsigned int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'unsigned int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'long int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'long unsigned int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'long long int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'long long unsigned int&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  219 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:219:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'float&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  223 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:223:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'double&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:227:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  227 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:227:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: cannot bind non-const lvalue reference of type 'long double&' to a value of type 'LL' {aka '__int128'}
   11 |         cin >> n;
      |                ^
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: invalid conversion from 'LL' {aka '__int128'} to 'void*' [-fpermissive]
   11 |         cin >> n;
      |                ^
      |                |
      |                LL {aka __int128}
a.cc:11:16: error: cannot bind rvalue '(void*)((long int)n)' to 'void*&'
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:122:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: invalid conversion from 'LL' {aka '__int128'} to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive]
   11 |         cin >> n;
      |                ^
      |                |
      |                LL {aka __int128}
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]' (near match)
  126 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:126:7: note:   conversion of argument 1 would be ill-formed:
a.cc:11:16: error: invalid conversion from 'LL' {aka '__int128'} to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} [-fpermissive]
   11 |         cin >> n;
      |                ^
      |                |
      |                LL {aka __int128}
/usr/include/c++/14/istream:133:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__i