[Offer收割]编程练习赛14 register

Ended

Participants:574

Verdict:Accepted
Score:100 / 100
Submitted:2017-04-16 14:26:52

Lang:G++

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#include<iostream>
#include<stdio.h>
#include<vector>
#include<unordered_map>
using namespace std;
int main()
{
    int N;
    cin >> N;
    vector<vector<int>>(N, vector<int>(2));
    unordered_map<int, int> imap;
    for (int i = 0; i < N; i++)
    {
        int x, y;
        cin >> x >> y;
        if (y == 1)
        {
            cout << i + 1 << " ";
        }
        else 
        {
            if (imap.find(y) != imap.end()) 
            {
                cout << imap[y] << " " << i+1;
            }
            else
                imap[y] = i + 1;
        }
    }
    cout << endl;
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