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답안 #206163

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
206163 2020-03-02T14:13:30 Z AlexLuchianov 사다리꼴 (balkan11_trapezoid) C++14
100 / 100
 451 ms 19560 KB 
#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <algorithm>
#include <map>

using namespace std;

ifstream in ("trapezoid.in");
ofstream out ("trapezoid.out");

#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
using ll = long long;
using ld = long double;

int const nmax = 100000;
int const modulo = 30013;

struct Trapezoid{
  int a;
  int b;
  int c;
  int d;
} v[1 + nmax];

int normalize(int n){
  vector<int> temp;
  for(int i = 1;i <= n; i++) {
    temp.push_back(v[i].a);
    temp.push_back(v[i].b);
    temp.push_back(v[i].c);
    temp.push_back(v[i].d);
  }
  sort(temp.begin(), temp.end());
  temp.erase(unique(temp.begin(), temp.end()), temp.end());
  map<int,int> code;
  for(int i = 0; i < temp.size(); i++)
    code[temp[i]] = 1 + i;
  for(int i = 1;i <= n; i++){
    v[i].a = code[v[i].a];
    v[i].b = code[v[i].b];
    v[i].c = code[v[i].c];
    v[i].d = code[v[i].d];
  }
  return temp.size();
}

pair<int,int> combine(pair<int,int> a, pair<int,int> b){
  if(a.first == b.first)
    return {a.first, (b.second + a.second) % modulo};
  else
    return max(a, b);
}

class FenwickTree{
private:
  int n;
  vector<pair<int,int>> aib;
public:
  FenwickTree(int n_){
    n = n_;
    aib.resize(1 + n);
  }

  void update(int pos, pair<int,int> number){
    for(int x = pos; x <= n; x += (x ^ (x & (x - 1))))
      aib[x] = combine(aib[x], number);
  }

  pair<int,int> query(int pos){
    pair<int,int> result(0,0);
    for(int x = pos; 0 < x; x = x & (x - 1))
      result = combine(result, aib[x]);
    return result;
  }
};

vector<pair<int,int>> events;
bool compare(pair<int,int> x, pair<int,int> y){
  int valx, valy;
  if(x.second == 1)
    valx = v[x.first].a;
  else
    valx = v[x.first].b;

  if(y.second == 1)
    valy = v[y.first].a;
  else
    valy = v[y.first].b;
  return valx < valy;
}

pair<int,int> dp[1 + nmax];
int main()
{
  int n;
  cin >> n;
  for(int i = 1;i <= n; i++)
    cin >> v[i].a >> v[i].b >> v[i].c >> v[i].d;
  int lim = normalize(n);
  for(int i = 1;i <= n; i++) {
    events.push_back({i, 1});
    events.push_back({i, 2});
  }

  sort(events.begin(), events.end(), compare);
  FenwickTree aib(lim);

  for(int i = 0; i < events.size(); i++){
    int id = events[i].first;
    if(events[i].second == 1){
      dp[id] = aib.query(v[id].c);
      dp[id].first++;
      if(dp[id].first == 1)
        dp[id].second = 1;
    } else
      aib.update(v[id].d, dp[id]);
  }
  pair<int,int> result(0, 0);

  for(int i = 1;i <= n; i++)
    result = combine(result, dp[i]);
  cout << result.first << " " << result.second << '\n';
  return 0;
}

Compilation message

trapezoid.cpp: In function 'int normalize(int)':
trapezoid.cpp:39:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < temp.size(); i++)
                  ~~^~~~~~~~~~~~~
trapezoid.cpp: In function 'int main()':
trapezoid.cpp:111:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < events.size(); i++){
                  ~~^~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 7 ms 508 KB Output is correct
5 Correct 11 ms 760 KB Output is correct
6 Correct 15 ms 1016 KB Output is correct
7 Correct 16 ms 888 KB Output is correct
8 Correct 21 ms 1272 KB Output is correct
9 Correct 42 ms 2596 KB Output is correct
10 Correct 73 ms 3316 KB Output is correct
11 Correct 103 ms 5868 KB Output is correct
12 Correct 225 ms 11240 KB Output is correct
13 Correct 268 ms 12776 KB Output is correct
14 Correct 331 ms 15568 KB Output is correct
15 Correct 353 ms 14256 KB Output is correct
16 Correct 392 ms 15024 KB Output is correct
17 Correct 403 ms 17764 KB Output is correct
18 Correct 334 ms 12004 KB Output is correct
19 Correct 417 ms 19172 KB Output is correct
20 Correct 451 ms 19560 KB Output is correct