807A - Is it rated - CodeForces Solution

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long int
#define ld long double
#define pi acos(-1)
#define pb push_back
#define pf push_front
//#define endl '\n'
#define MAXN 32000
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#pragma GCC optimize("O3,Ofast,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt,tune=native")
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll, null_type, less<ll >, rb_tree_tag,
        tree_order_statistics_node_update>
        newset;
ll i,j,a,k,b,c,n,t=1,m,p,q,d,e,f,y,g,z,h,r,l,x,u,o;
ld aa,bb,ee,dd,ff,kk,gg,cc;
vector<ll> v[100006],s,vv;
vector< pair<pair<ll,ll>,ll> > ss,pp,hh;
map<ll,ll > ta,pa,sa,ma;
map< pair<ll,ll>, ll >se,me;
priority_queue<ll,vector<ll>,greater<ll> > aq,tq,pq,nq,mq,xq;
string st,et,ft,pt,ct;
deque<pair<ll,ll> > de,ne;
set<ll > li,si;

//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);

int main()
{
    fast;

    //cin>>t;

    while(t--)
    {
        cin>>n;
        f = 0;
        for(i=0; i<n; i++)
        {
            cin>>a>>b;
            if(a!=b)f=1;
            ss.pb({{a,b},i});
        }

        for(i=0; i+1<n; i++)
        {
            if(ss[i].first.second<ss[i+1].first.second && f==0){f=2;break;}
        }
        if(f==1)cout<<"rated"<<endl;
        else if(f==2)cout<<"unrated"<<endl;
        else cout<<"maybe"<<endl;
    }

}