Submission #1285944

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285944		kawhiet	World Map (IOI25_worldmap)	C++20	0 / 100	2 ms	828 KiB

worldmap

#include <bits/stdc++.h>
#include "worldmap.h"
using namespace std;

vector<vector<int>> create_map(int n, int m, vector<int> a, vector<int> b) {
  vector<vector<int>> g(n + 1);
  for (int i = 0; i < m; i++) {
    g[a[i]].push_back(b[i]);
    g[b[i]].push_back(a[i]);
  }
  int k = 2 * n;
  vector<vector<int>> ans(k, vector<int>(k, 1));
  int x = 2;
  for (int i = 0; i < k; i += 2) {
    int j = 0;
    for (auto y : g[x]) {
      ans[i][j++] = y;
      ans[i][j++] = x;
    }
    for (; j < k; j++) {
      ans[i][j] = x;
    }
    x++;
    if (x > n) break;
  }
  return ans;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 7
• Subtask 4: 0 / 8
• Subtask 5: 0 / 14
• Subtask 6: 0 / 56