Language: C++

#include <algorithm>
#include <cassert>
#include <climits>
#include <cmath>
#include <cstring>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>

#define rs(a, b) ((a) >> (b))
#define ls(a, b) ((a) << (b))
#define gcd __gcd
#define lcm(a, b) ((a * b) / gcd(a, b))
#define pq priority_queue
#define um unordered_map
#define us unordered_set
#define lb lower_bound
#define ub upper_bound
#define F first
#define B begin()
#define E end()
#define ln length()
#define sz size()
#define S second
#define em empty()
#define nani(x) cerr << #x << " is " << x << endl;
#define ch(x) (x - 'a' + 1)
#define mp make_pair
#define pb push_back
#define loop(i, begin, end) for (__typeof(end) i = (begin) - ((begin) > (end)); i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end)))
#define scan(x, n) loop(i, 0, n) cin >> x[i];
#define adde(g, u, v) g[u].pb(v), g[v].pb(u);
#define addew(g, u, v, w) g[u].pb({ v, w }), g[v].pb({ u, w });
#define print(x, n) loop(i, 0, n) cout << x[i] << " ";
#define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define inf 10000000000
#define mod 1000000007

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<long> vl;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef pair<long, long> pll;
typedef vector<ii> vii;
typedef vector<pll> vll;
typedef um<int, int> umii;
typedef um<char, int> umci;
typedef map<char, int> mci;
typedef map<int, int> mii;

const int N = 2e5 + 1;
vi G[N];
bool vis[N];
ll lazy[N];

void dfs(int x)
{
    vis[x] = 1;
    for (auto i : G[x]) {
        if (!vis[i]) {
            lazy[i] += lazy[x];
            dfs(i);
        }
    }
}

int main()
{
    fast;
    //freopen("input.txt", "r", stdin);
    int n, q;
    cin >> n > q;
    for (int i = 1; i < n; i++) {
        int u, v;
        cin >> u >> v;
        adde(G, u, v);
    }

    while (q--) {
        int p, q;
        cin >> p >> q;
        lazy[p] += q;
    }

    dfs(1);

    for (int i = 1; i <= n; i++)
        cout << lazy[i] << " ";
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:83:14: error: no match for 'operator>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'int')
   83 |     cin >> n > q;
      |     ~~~~~~~~ ^ ~
      |         |      |
      |         |      int
      |         std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}
a.cc:83:14: note: candidate: 'operator>(int, int)' (built-in)
   83 |     cin >> n > q;
      |     ~~~~~~~~~^~~
a.cc:83:14: note:   no known conversion for argument 1 from 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} to 'int'
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_pair.h:1058:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator>(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1058 |     operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1058:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::pair<_T1, _T2>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:462:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  462 |     operator>(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:462:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/stl_iterator.h:507:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  507 |     operator>(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:507:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/stl_iterator.h:1714:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1714 |     operator>(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1714:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/stl_iterator.h:1774:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1774 |     operator>(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1774:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/deque:66,
                 from a.cc:6:
/usr/include/c++/14/bits/stl_deque.h:2349:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator>(const deque<_Tp, _Alloc>&, const deque<_Tp, _Alloc>&)'
 2349 |     operator>(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_deque.h:2349:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::deque<_Tp, _Alloc>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/bits/memory_resource.h:47,
                 from /usr/include/c++/14/deque:81:
/usr/include/c++/14/tuple:2619:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator>(const tuple<_UTypes ...>&, const tuple<_Elements ...>&)'
 2619 |     operator>(const tuple<_TElements...>& __t,
      |     ^~~~~~~~
/usr/include/c++/14/tuple:2619:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::tuple<_UTypes ...>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54,
                 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/iomanip:42,
                 from a.cc:7:
/usr/include/c++/14/string_view:695:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  695 |     operator> (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:695:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/string_view:702:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  702 |     operator> (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:702:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/string_view:710:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator>(__type_identity_t<basic_string_view<_CharT, _Traits> >, basic_string_view<_CharT, _Traits>)'
  710 |     operator> (__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:710:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/basic_string.h:3915:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3915 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3915:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/basic_string.h:3929:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 3929 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3929:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
   83 |     cin >> n > q;
      |                ^
/usr/include/c++/14/bits/basic_string.h:3942:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const _CharT*, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3942 |     operator>(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3942:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   mismatched types 'const _CharT*' and 'std::basic_istream<char>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/map:63,
                 from a.cc:9:
/usr/include/c++/14/bits/stl_map.h:1564:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator>(const map<_Key, _Tp, _Compare, _Allocator>&, const map<_Key, _Tp, _Compare, _Allocator>&)'
 1564 |     operator>(const map<_Key, _Tp, _Compare, _Alloc>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_map.h:1564:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>'
   83 |     cin >> n > q;
      |                ^
In file included from /usr/include/c++/14/map:64:
/usr/include/c++/14/bits/stl_multimap.h:1186:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator>(const multimap<_Key, _Tp, _Compare, _Allocator>&, const multimap<_Key, _Tp, _Compare, _Allocator>&)'
 1186 |     operator>(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_multimap.h:1186:5: note:   template argument deduction/substitution failed:
a.cc:83:16: note:   'std::basic_istream<char>::__istream