LOWER AND UPPER BOUND ON PAIR

#include <bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
#define ll long long
#define ld long double
#define pb push_back
#define fe first
#define se second
#define st(x) sort(x.begin(),x.end())
#define rst(x) sort(x.rbegin(), x.rend())
#define all(x) x.begin(),x.end()
long double pi = 3.14159265358979323;

const double EPS = 1e-12;
const int N = 1e6 + 5;
const int mod = 1e9 + 7;




int main()
{
    fast;
    //lower bound and upper bound on pair of vectors
    //lower bound
    pair < ll , ll > p = {x,-1e18};
    //upperbound
    pair < ll , ll > p = {x,1e18};
    int j = upper_bound(v.begin() , v.end() , p) - v.begin();























    return 0;

}