Submission #2408539

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
static const int MAX=100000;
vector <int> Vk;
int N,K,a,b;

int main(){
    cin>>N>>K;

    while(N--){
        cin>>a>>b;
        while(b--)Vk.push_back(a);
        if(Vk.size()<=K)continue;
        else{
            while(Vk.size()<=K) Vk.pop_back();
        }
    }
    cout<<Vk[K-1]<<"\n";
    return 0;
}

Submission Info

Judge Result