Before an Exam.cpp

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main()
{
    ll i,j,n,time;
    ll a[35],b[35];
    while(cin>>n>>time)
    {
        ll min_time=0,max_time=0,sum_time=0;
        vector<ll>v;
        for(i=0; i<n; i++)
        {
            cin>>a[i]>>b[i];
            min_time+=a[i];
            max_time+=b[i];
            v.push_back(a[i]);
            sum_time+=a[i];
        }
        if(min_time<=time && time<=max_time)
        {
            cout<<"YES\n";
            if(sum_time<time)
            {
                for(i=0; i<n; i++)
                {
                    ll df=b[i]-a[i];
                    j=1;
                    while(j<=df)
                    {
                        if(sum_time==time)
                            break;
                        sum_time++;
                        v[i]++;
                        j++;
                    }
                }
            }
            for(i=0; i<v.size(); i++)
            {
                cout<<v[i]<<" ";
            }
            cout<<endl;
        }
        else
            cout<<"NO\n";
    }
    return 0;
}