Submission #465586

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
465586	2021-08-16 12:32:16	prvocislo	Werewolf (IOI18_werewolf)	C++17	100 / 100	905 ms	126236 KiB

werewolf

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "werewolf.h"
#include <vector>
#include <set>
using namespace std;
const int maxn = 2e5 + 5;
int pa[maxn], siz[maxn], query_size[maxn], tin[maxn], query_l[maxn], query_r[maxn], time = 0;
vector<int> g[maxn], dsu_g[maxn], e1[maxn], e2[maxn];
set<int> node[maxn];
int root(int u) { return u == pa[u] ? u : root(pa[u]); }
void merge(int u, int v, bool type)
{
  u = root(u), v = root(v);
  if (u == v) return;
  if (siz[u] < siz[v]) swap(u, v); 
  pa[v] = u, siz[u] += siz[v];
  if (!type) dsu_g[u].push_back(v);
  else for (int i : node[v]) node[u].insert(i);
}
void dfs(int u)
{
  tin[u] = time++;
  for (int v : dsu_g[u]) dfs(v);
}
vector<int> check_validity(int n, vector<int> x, vector<int> y, vector<int> s, vector<int> e, vector<int> l, vector<int> r) 
{
  for (int i = 0; i < x.size(); i++) g[x[i]].push_back(y[i]), g[y[i]].push_back(x[i]);
  int q = s.size();
  vector<int> ans(q, 0);
  for (int i = 0; i < q; i++) e1[l[i]].push_back(i), e2[r[i]].push_back(i);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for (int i = 0; i < x.size(); i++) g[x[i]].push_back(y[i]), g[y[i]].push_back(x[i]);
      |                  ~~^~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 34 / 34
• Subtask 4: 51 / 51