# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1264747 | dzhoz0 | Pictionary (COCI18_pictionary) | C++20 | 45 ms | 3400 KiB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF 1e18
#define f first
#define s second
#define pii pair<int, int>
#define vi vector<int>
const int MOD = 1'000'000'000 + 7;
void setIO(string name = "")
{
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
#ifdef LOCAL
freopen("inp.txt", "r", stdin);
freopen("out.txt", "w", stdout);
#else
if (!name.empty())
{
freopen((name + ".INP").c_str(), "r", stdin);
freopen((name + ".OUT").c_str(), "w", stdout);
}
#endif
}
const int MAXN = 2e5;
int par[MAXN + 5];
int sz[MAXN + 5];
int time_changed[MAXN + 5];
void make_set(int v) {
par[v] = v;
sz[v] = 1;
}
int find_set(int v, int time) {
if(par[v] == v || time_changed[v] > time) return v;
return find_set(par[v], time);
}
void union_set(int u, int v, int time) {
u = find_set(u, time);
v = find_set(v, time);
if(u != v) {
if(sz[u] < sz[v]) swap(u, v);
par[v] = u;
sz[u] += sz[v];
time_changed[v] = time;
}
}
void solve()
{
int n, m, q; cin >> n >> m >> q;
for(int i = 1; i <= n; i++) make_set(i);
for(int i = 1; i <= m; i++) {
int g = m - i + 1;
for(int j = g * 2; j <= n; j += g) {
union_set(g, j, i);
}
}
while(q--) {
int u, v; cin >> u >> v;
int l = 0, r = m;
int ans = m;
while(l <= r) {
int mid = (l + r) / 2;
if(find_set(u, mid) == find_set(v, mid)) {
ans = mid;
r = mid - 1;
}
else l = mid + 1;
}
cout << ans << '\n';
}
}
signed main()
{
setIO();
int t = 1;
// cin >> t;
while (t--)
solve();
}
컴파일 시 표준 에러 (stderr) 메시지
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
Fetching results... |