QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#181997#4894. 学姐买瓜hos_lyric#0 0ms0kbC++142.8kb2023-09-17 08:30:562024-07-04 02:01:19

Judging History

你现在查看的是最新测评结果

  • [2024-07-04 02:01:19]
  • 评测
  • 测评结果:0
  • 用时:0ms
  • 内存:0kb
  • [2023-09-17 08:30:56]
  • 提交

answer

#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

using Int = long long;

template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
#define COLOR(s) ("\x1b[" s "m")


int N, M;
vector<int> O, L, R;


namespace brute {
vector<int> run() {
  vector<pair<pair<int, int>, int>> ps;
  for (int i = 0; i < N; ++i) if (O[i] == 1) {
    ps.emplace_back(make_pair(R[i], L[i]), i);
  }
  sort(ps.begin(), ps.end());
  const int psLen = ps.size();
  vector<int> ids(N, -1);
  for (int x = 0; x < psLen; ++x) {
    ids[ps[x].second] = x;
  }
  vector<int> on(psLen, 0);
  vector<int> ans(N, 0);
  for (int i = 0; i < N; ++i) {
    if (O[i] == 1) {
      on[ids[i]] = 1;
    } else {
      int now = L[i];
      for (int x = 0; x < psLen; ++x) if (on[x]) {
        if (now <= ps[x].first.second && ps[x].first.first <= R[i]) {
          ++ans[i];
          now = ps[x].first.first;
        }
      }
    }
  }
  return ans;
}
}  // brute


namespace brute2 {
vector<int> run() {
  vector<int> to(N + 1, N + 1);
  vector<int> ans(N, 0);
  for (int i = 0; i < N; ++i) {
    if (O[i] == 1) {
      for (int u = L[i]; u >= 0; --u) {
        if (!chmin(to[u], R[i])) {
          break;
        }
      }
    } else {
      for (int u = L[i]; u <= R[i]; u = to[u]) {
        ++ans[i];
      }
      --ans[i];
    }
  }
  return ans;
}
}  // brute2


int main() {
  for (; ~scanf("%d%d", &N, &M); ) {
    O.resize(N);
    L.resize(N);
    R.resize(N);
    for (int i = 0; i < N; ++i) {
      scanf("%d%d%d", &O[i], &L[i], &R[i]);
      --L[i];
    }
    
    const auto ans = brute2::run();
    for (int i = 0; i < N; ++i) if (O[i] == 2) {
      printf("%d\n", ans[i]);
    }
cerr<<"========"<<endl;
  }
  return 0;
}

详细

Subtask #1:

score: 0
Time Limit Exceeded

Test #1:

score: 0
Time Limit Exceeded

input:

11 13
2 4 4
1 11 12
1 1 5
1 2 3
1 2 10
2 2 8
1 6 6
2 2 10
1 6 11
2 2 3
2 2 13

output:


result:


Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #2:

0%