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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#88839#5356. esperarScintilla0 5ms4364kbC++141.9kb2023-03-17 18:40:532023-03-17 18:40:57

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.
  • [2023-03-17 18:40:57]
  • 评测
  • 测评结果:0
  • 用时:5ms
  • 内存:4364kb
  • [2023-03-17 18:40:53]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define rep(i, s, e) for (int i = s; i <= e; ++i)
#define drep(i, s, e) for (int i = s; i >= e; --i)
#define file(a) freopen(#a".in", "r", stdin), freopen(#a".out", "w", stdout)
#define pv(a) cout << #a << " = " << a << endl
#define pa(a, l, r) cout << #a " : "; rep(_, l, r) cout << a[_] << ' '; cout << endl

const int P = 998244353;

const int N = 1e2 + 10;
const int M = 30;

int read() {
  int x = 0, f = 1; char c = getchar();
  for (; c < '0' || c > '9'; c = getchar()) if (c == '-') f = -1;
  for (; c >= '0' && c <= '9'; c = getchar()) x = x * 10 + c - 48;
  return x * f;
}

int inc(int a, int b) { return (a += b) >= P ? a - P : a; }
int dec(int a, int b) { return (a -= b) < 0 ? a + P : a; }
int mul(int a, int b) { return 1ll * a * b % P; }
void add(int &a, int b) { (a += b) >= P ? a -= P : 1; }
void sub(int &a, int b) { (a -= b) < 0 ? a += P : 1; }
int qpow(int a, int b) { int res = 1; for (; b; b >>= 1, a = mul(a, a)) if (b & 1) res = mul(res, a); return res; }

int n, a[N], c[N], ans = 1, same = 1;

struct node {
  int dat[2 * N * M];
  int& operator [] (int i) { return dat[i + N * M]; }
} f[N];

void work(int d) {
  rep(i, 1, n) {
    c[i] = 0;
    while (!(a[i] % d)) ++ c[i], a[i] /= d;
    ans = mul(ans, (c[i] + 1) * (c[i] + 2) / 2);
  }
  int lim = *max_element(c + 1, c + n + 1);
  f[0][0] = 1;
  rep(i, 1, n) rep(j, -i * lim, i * lim) f[i][j] = 0;
  rep(i, 1, n) rep(j, -i * lim, i * lim) rep(d, -c[i], c[i]) {
    add(f[i][j + d], mul(f[i - 1][j], (c[i] - abs(j)) / 2 + 1));
  }
  same = mul(same, f[n][0]);
}

int main() {
  n = read();
  rep(i, 1, n) a[i] = read();
  rep(i, 1, n) {
    for (int d = 2; d * d <= a[i]; ++ d) {
      if (!(a[i] % d)) work(d);
    }
    if (a[i] > 1) work(a[i]);
  }
  ans = mul(inc(ans, same), (P + 1) / 2);
  printf("%d\n", ans);
  return 0;
}

詳細信息

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 17
Accepted
time: 2ms
memory: 3428kb

input:

2
2 3

output:

5

result:

ok single line: '5'

Test #2:

score: -17
Wrong Answer
time: 0ms
memory: 3488kb

input:

4
5 8 8 9

output:

920

result:

wrong answer 1st lines differ - expected: '916', found: '920'

Subtask #2:

score: 0
Wrong Answer

Test #7:

score: 0
Wrong Answer
time: 2ms
memory: 4364kb

input:

100
78125 625 244140625 9765625 390625 9765625 244140625 3125 125 244140625 1 78125 25 48828125 25 3125 15625 9765625 25 125 9765625 1 625 125 244140625 3125 15625 48828125 9765625 1 125 390625 1953125 15625 1 5 9765625 5 48828125 125 9765625 25 5 48828125 390625 25 125 390625 9765625 9765625 625 31...

output:

65447008

result:

wrong answer 1st lines differ - expected: '476416688', found: '65447008'

Subtask #3:

score: 0
Wrong Answer

Test #12:

score: 0
Wrong Answer
time: 5ms
memory: 4324kb

input:

100
78125 625 244140625 9765625 390625 9765625 244140625 3125 125 244140625 1 78125 25 48828125 25 3125 15625 9765625 25 125 9765625 1 625 125 244140625 3125 15625 48828125 9765625 1 125 390625 1953125 15625 1 5 9765625 5 48828125 125 9765625 25 5 48828125 390625 25 125 390625 9765625 9765625 625 31...

output:

65447008

result:

wrong answer 1st lines differ - expected: '476416688', found: '65447008'