제출 #597554

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
597554	2022-07-16 10:17:41	MilosMilutinovic	Regions (IOI09_regions)	C++14	75 / 100	8089 ms	48380 KiB

regions

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/**
 *    author:  wxhtzdy
 *    created: 16.07.2022 11:38:01
**/
#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n, r, q;
  cin >> n >> r >> q;
  vector<vector<int>> g(n);
  vector<int> reg(n);
  for (int i = 0; i < n; i++) {
    if (i > 0) {
      int p;
      cin >> p;
      --p;
      g[p].push_back(i);
    }
    cin >> reg[i];
    --reg[i];
  }
  vector<vector<int>> ids(r);
  for (int i = 0; i < n; i++) {
    ids[reg[i]].push_back(i);
  }             
  int BLOCK = 400;
 
 
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

컴파일 시 표준 에러 (stderr) 메시지

regions.cpp: In function 'int main()':
regions.cpp:36:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if (ids[i].size() >= BLOCK) {
      |         ~~~~~~~~~~~~~~^~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 60 / 85