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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#726331#8338. Quad Kingdoms Chessucup-team3646WA 131ms3664kbC++202.0kb2024-11-08 23:03:132024-11-08 23:03:13

Judging History

你现在查看的是最新测评结果

  • [2024-11-08 23:03:13]
  • 评测
  • 测评结果:WA
  • 用时:131ms
  • 内存:3664kb
  • [2024-11-08 23:03:13]
  • 提交

answer

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

using ll = long long;
#define rep(i, n) for (ll i = 0; i < ll(n); i++)
#define rep2(i, l, r) for (ll i = ll(l); i < ll(r); i++)

using vi = vector<int>;
using vvi = vector<vi>;
using vll = vector<ll>;

constexpr ll mod = (1LL << 61) - 1;

vll H;

struct tree {
  struct node {
    ll hash = 0, hashL = 0;
    int max = 0;
  };

  int N, sz;
  vector<node> data;

  tree(int n) : N(n) {
    sz = 1;
    while (sz < N) sz <<= 1;
    data.assign(2 * sz, {0, 0, 0});
  }

  void set(int pos, int val) {
    pos += sz;
    data[pos].max = val;
    data[pos].hash = H[val];
    data[pos].hashL = H[val];
    while (pos >>= 1) upd(pos);
  }

  ll get(int k, int x) {
    if (k >= sz) {
      int val = data[k].max;
      if (val >= x)
        return H[val];
      else
        return 0;
    }
    if (x > data[2 * k + 1].max) return get(2 * k, x);
    return (data[k].hashL + get(2 * k + 1, x)) % mod;
  }

  void upd(int k) {
    data[k].max = max(data[2 * k].max, data[2 * k + 1].max);
    data[k].hashL = get(2 * k, data[2 * k + 1].max);
    data[k].hash = (data[k].hashL + data[2 * k + 1].hash) % mod;
  }
};

ll seed = 1;
ll rnd() {
  seed += 0x9e3779b97f4a7c15;
  seed = (seed ^ (seed >> 30)) * 0xbf58476d1ce4e5b9;
  seed = (seed ^ (seed >> 27)) * 0x94d049bb133111eb;
  return seed ^ (seed >> 31);
}

int main() {
  int m = 1e5 + 10;
  H.resize(m);
  rep(i, m) { H[i] = rnd() % mod; }
  int n1, n2;
  cin >> n1;
  vi a1(n1);
  rep(i, n1) cin >> a1[i];
  cin >> n2;
  vi a2(n2);
  rep(i, n2) cin >> a2[i];

  tree T1(n1), T2(n2);
  rep(i, n1) T1.set(i, a1[i]);
  rep(i, n2) T2.set(i, a2[i]);

  int q;
  cin >> q;
  while (q--) {
    int t, x, y;
    cin >> t >> x >> y;
    x--;
    if (t == 1)
      T1.set(x, y);
    else
      T2.set(x, y);
    ll hash1 = T1.get(1, 0), hash2 = T2.get(1, 0);
    if (hash1 == hash2)
      cout << "YES\n";
    else
      cout << "NO\n";
  }
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3652kb

input:

5
1 2 3 4 5
5
5 4 3 2 1
8
1 1 5
1 4 2
1 2 4
1 5 1
1 5 5
2 1 4
2 3 5
2 5 5

output:

NO
NO
NO
YES
NO
NO
NO
YES

result:

ok 8 tokens

Test #2:

score: -100
Wrong Answer
time: 131ms
memory: 3664kb

input:

1
2
6
2 1 1 1 1 1
200000
2 6 2
1 1 1
1 1 1
1 1 2
2 1 1
1 1 2
1 1 1
2 4 1
2 1 2
1 1 1
1 1 2
2 5 1
1 1 1
1 1 2
1 1 1
2 6 1
1 1 2
1 1 2
1 1 2
2 3 1
1 1 1
2 1 1
2 6 2
1 1 2
2 4 1
1 1 2
2 6 1
1 1 2
1 1 1
2 5 2
2 6 2
1 1 1
2 4 2
2 5 2
2 6 2
1 1 1
2 5 1
2 6 2
1 1 2
1 1 1
1 1 1
2 4 1
1 1 2
1 1 2
1 1 2
2 3 2...

output:

NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
...

result:

wrong answer 5th words differ - expected: 'YES', found: 'NO'