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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#102535#5463. Range Closest Pair of Points QueryHongzyWA 4ms15824kbC++141.6kb2023-05-03 14:28:362023-05-03 14:28:37

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-05-03 14:28:37]
  • 评测
  • 测评结果:WA
  • 用时:4ms
  • 内存:15824kb
  • [2023-05-03 14:28:36]
  • 提交

answer

#include <bits/stdc++.h>
#define fs first
#define sc second
#define pb push_back
#define LOG(FMT...) fprintf(stderr, FMT);
#define rep(i, j, k) for(int i = j; i <= k; ++ i)
#define per(i, j, k) for(int i = j; i >= k; -- i)
using namespace std;
using pii = pair<int, int>;
using ll = long long;
const int N = 3e5 + 5;
const ll INF = 1e18;
pii a[N];
int n, q;
ll ans[N], bit[N];
vector<pii> vec[N];
map< pii, vector<int> > sys[32];
ll pw(ll x) { return x * x; }
ll dis(int x, int y) {
  return pw(a[x].fs - a[y].fs) + pw(a[x].sc - a[y].sc);
}
void init() {
  rep(i, 1, n) bit[i] = INF;
}
void ins(int x, ll y) {
  x = n-x+1;
  for(; x <= n; x += x & (-x))
    bit[x] = min(bit[x], y);
}
ll qry(int x) {
  x = n-x+1;
  ll ans = INF;
  for(; x >= 1; x &= x-1)
    ans = min(ans, bit[x]);
  return ans;
}
int main() {
  scanf("%d%d", &n, &q);
  rep(i, 1, n) {
    scanf("%d%d", &a[i].fs, &a[i].sc);
  }
  rep(i, 1, q) {
    int l, r;
    scanf("%d%d", &l, &r);
    vec[r].pb(pii(l, i));
  }
  init();
  rep(r, 1, q) {
    int mx = 0;
    rep(k, 0, 26) {
      int x = a[r].fs >> (k+1), y = a[r].sc >> (k+1);
      int _mx = 0;
      rep(dx, -1, 1) rep(dy, -1, 1) {
        auto &it = sys[k][pii(x+dx, y+dy)];
        while(it.size() && *it.begin() <= mx)
          it.erase(it.begin());
        for(int z: it) {
          // printf("(%d, %d)\n", z, r);
          _mx = max(_mx, z);
          ins(z, dis(z, r));
        }
      }
      mx = max(mx, _mx);
      sys[k][pii(x, y)].pb(r);
    }
    for(auto it: vec[r])
      ans[it.sc] = qry(it.fs);
  }
  rep(i, 1, q)
    printf("%lld\n", ans[i]);
  return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 15824kb

input:

5 5
2 4
1 1
3 3
5 1
4 2
1 5
2 3
2 4
3 5
1 3

output:

2
8
8
2
2

result:

ok 5 number(s): "2 8 8 2 2"

Test #2:

score: 0
Accepted
time: 1ms
memory: 13728kb

input:

2 1
1 1
1 1
1 2

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: -100
Wrong Answer
time: 4ms
memory: 12976kb

input:

2 1
1 100000000
100000000 1
1 2

output:

0

result:

wrong answer 1st numbers differ - expected: '19999999600000002', found: '0'