Language: C++

#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
#include <math.h>
#include <string.h>
#include <map>
#include <numeric>
#include <random>
#include <queue>
#include <deque>
#include <tuple>
#include <iomanip>

using namespace std;
typedef long long ll;

const int INF = (1 << 30) - 1;
const ll INFLL = (1LL << 61) - 1;
const int MOD = 1000000007;
#define ALL(a) (a).begin(),(a).end()
#define rALL(a) (a).rbegin(),(a).rend()

int main()
{
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n, q;
	cin >> n >> q;
	vector<tuple<int, int, int>> stx(n);
	for (int i = 0; i < n; i++) {
		cin >> get<1>(stx[i]) >> get<2>(stx[i]) >> get<0>(stx[i]);
	}
	sort(ALL(stx));
	set<pair<int, int>> d;
	for (int i = 0; i < q; i++) {
		int x; cin >> x;
		d.emplace(x, i);
	}
	vector<ll> ans(q, -1);
	for (int i = 0; i < n; i++) {
		auto first = d.lower_bound(make_pair(get<1>(stx[i]) - get<0>(stx[i]), 0));
		auto last = d.upper_bound(make_pair(get<2>(stx[i]) - get<0>(stx[i]) - 1, q));
		
		for (auto it = first; it != last; it++) {
			ans[(*it).second] = get<0>(stx[i]);
		}
		*first = INF, last = INF;
	}
	for (int i = 0; i < q; i++)cout << ans[i] << "\n";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:48:26: error: no match for 'operator=' (operand types are 'const std::pair<int, int>' and 'const int')
   48 |                 *first = INF, last = INF;
      |                          ^~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_pair.h:946:9: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U2 = _U1; _T1 = int; _T2 = int]'
  946 |         operator=(const pair<_U1, _U2>& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:946:9: note:   template argument deduction/substitution failed:
a.cc:48:26: note:   mismatched types 'const std::pair<_T1, _T2>' and 'const int'
   48 |                 *first = INF, last = INF;
      |                          ^~~
/usr/include/c++/14/bits/stl_pair.h:957:9: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U2 = _U1; _T1 = int; _T2 = int]'
  957 |         operator=(pair<_U1, _U2>&& __p)
      |         ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:957:9: note:   template argument deduction/substitution failed:
a.cc:48:26: note:   mismatched types 'std::pair<_T1, _T2>' and 'const int'
   48 |                 *first = INF, last = INF;
      |                          ^~~
/usr/include/c++/14/bits/stl_pair.h:921:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(std::__conditional_t<((bool)std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value), const std::pair<_T1, _T2>&, const std::__nonesuch&>) [with _T1 = int; _T2 = int; std::__conditional_t<((bool)std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value), const std::pair<_T1, _T2>&, const std::__nonesuch&> = const std::pair<int, int>&]'
  921 |       operator=(__conditional_t<__and_<is_copy_assignable<_T1>,
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:923:65: note:   no known conversion for argument 1 from 'const int' to 'std::__conditional_t<true, const std::pair<int, int>&, const std::__nonesuch&>' {aka 'const std::pair<int, int>&'}
  921 |       operator=(__conditional_t<__and_<is_copy_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  922 |                                        is_copy_assignable<_T2>>::value,
      |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  923 |                                 const pair&, const __nonesuch&> __p)
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/stl_pair.h:931:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(std::__conditional_t<((bool)std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value), std::pair<_T1, _T2>&&, std::__nonesuch&&>) [with _T1 = int; _T2 = int; std::__conditional_t<((bool)std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value), std::pair<_T1, _T2>&&, std::__nonesuch&&> = std::pair<int, int>&&]'
  931 |       operator=(__conditional_t<__and_<is_move_assignable<_T1>,
      |       ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:933:55: note:   no known conversion for argument 1 from 'const int' to 'std::__conditional_t<true, std::pair<int, int>&&, std::__nonesuch&&>' {aka 'std::pair<int, int>&&'}
  931 |       operator=(__conditional_t<__and_<is_move_assignable<_T1>,
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  932 |                                        is_move_assignable<_T2>>::value,
      |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  933 |                                 pair&&, __nonesuch&&> __p)
      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~~
a.cc:48:38: error: no match for 'operator=' (operand types are 'std::_Rb_tree_const_iterator<std::pair<int, int> >' and 'const int')
   48 |                 *first = INF, last = INF;
      |                                      ^~~
In file included from /usr/include/c++/14/set:62,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_tree.h:324:12: note: candidate: 'constexpr std::_Rb_tree_const_iterator<std::pair<int, int> >& std::_Rb_tree_const_iterator<std::pair<int, int> >::operator=(const std::_Rb_tree_const_iterator<std::pair<int, int> >&)'
  324 |     struct _Rb_tree_const_iterator
      |            ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_tree.h:324:12: note:   no known conversion for argument 1 from 'const int' to 'const std::_Rb_tree_const_iterator<std::pair<int, int> >&'
/usr/include/c++/14/bits/stl_tree.h:324:12: note: candidate: 'constexpr std::_Rb_tree_const_iterator<std::pair<int, int> >& std::_Rb_tree_const_iterator<std::pair<int, int> >::operator=(std::_Rb_tree_const_iterator<std::pair<int, int> >&&)'
/usr/include/c++/14/bits/stl_tree.h:324:12: note:   no known conversion for argument 1 from 'const int' to 'std::_Rb_tree_const_iterator<std::pair<int, int> >&&'