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#include <iostream>
#include <cstdio>
#include <set>
#include <map>
#include <algorithm>
#include <cstdlib>
#include <vector>
#include <cmath>
#include <string>
#include <cstring>
#include <queue>
#include <stack>
#include <deque>
#include <iomanip>
#include <bitset>
 
using namespace std;
 
#define ll long long
#define forn(i, n) for(int (i) = 0; (i) < (n); ++(i))
#define mp make_pair
#define pb push_back
#define F first
#define S second
 
ll inf = 1e18 + 7;
ll mod = 1e9 + 7;
 
#define eps 1e-9
 
int n;
 
int a[200005];
 
bool two = false;
 
int main(){
  map<int, __int128> mp;
  scanf("%d", &n);
  int ik;
  ll ak;
  forn(i, n){
    scanf("%d %lld", &ik, &ak);
    mp[ik] = ak;
    a[i] = ik;
  }
 
  sort(a, a+n);
  __int128 add= 0;
  __int128 cur = 0;
  __int128 already = 0;
  ik = a[n-1];
  for (; ik > 0; --ik) {
      already = mp[ik];
      cur = add + already;
      if (cur % ik != 0) {
            puts("No");
          return 0;
      }
 
      add += cur / ik;
  }
 
  cout << "Yes";
 
  return 0;
}
 
 
 

prog.cpp: In function ‘int main()’:
prog.cpp:43:20: error: template argument 2 is invalid
   map<int, __int128> mp;
                    ^
prog.cpp:43:20: error: template argument 4 is invalid
prog.cpp:43:24: error: invalid type in declaration before ‘;’ token
   map<int, __int128> mp;
                        ^
prog.cpp:49:10: error: invalid types ‘int[int]’ for array subscript
     mp[ik] = ak;
          ^
prog.cpp:54:3: error: expected primary-expression before ‘__int128’
   __int128 add= 0;
   ^
prog.cpp:54:3: error: expected ‘;’ before ‘__int128’
prog.cpp:55:3: error: expected primary-expression before ‘__int128’
   __int128 cur = 0;
   ^
prog.cpp:55:3: error: expected ‘;’ before ‘__int128’
prog.cpp:56:3: error: expected primary-expression before ‘__int128’
   __int128 already = 0;
   ^
prog.cpp:56:3: error: expected ‘;’ before ‘__int128’
prog.cpp:59:7: error: ‘already’ was not declared in this scope
       already = mp[ik];
       ^
prog.cpp:59:22: error: invalid types ‘int[int]’ for array subscript
       already = mp[ik];
                      ^
prog.cpp:60:7: error: ‘cur’ was not declared in this scope
       cur = add + already;
       ^
prog.cpp:60:13: error: ‘add’ was not declared in this scope
       cur = add + already;
             ^

Standard output is empty