제출 #405476

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
4054762021-05-16 12:48:27AugustinasJucasTeleporters (IOI08_teleporters)C++14
100 / 100
592 ms56488 KiB
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
const int dydis = 2e6 + 10;
int nxt[dydis];
int desn[dydis];
int n, k;
vector<pair<int, int> > mas;
vector<pair<int, int> > vec;
bool vis[dydis] = {};
int main(){
cin.tie(NULL);
ios_base::sync_with_stdio(false);
cin >> n >> k;
for(int i = 0; i < n; i++){
int a, b; cin >> a >> b;
vec.push_back({a, i*2});
vec.push_back({b, i*2+1});
}
sort(vec.begin(), vec.end());
for(int i = 0; i < (int)vec.size()-1; i++){
//cout << ((char)('a'+(vec[i].second/2))) << " ";
desn[vec[i].second] = vec[i+1].second;
}
//cout << endl;
desn[vec.back().second] = 2*n;
for(int i = 0; i < 2*n; i++){
nxt[i] = desn[(i ^ 1)];
// cout << "nxt[" << i << "] = " << nxt[i] << endl;
 
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