| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 897764 |
2024-01-03T16:13:09 Z |
denniskim |
NoM (RMI21_nom) |
C++17 |
|
88 ms |
99752 KB |
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
using namespace std;
typedef long long ll;
typedef __int128 lll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(10);
#define sp << " "
#define en << "\n"
#define compress(v) sort(v.begin(), v.end()), v.erase(unique(v.begin(), v.end()), v.end())
inline int readChar();
template<class T = int> inline T readInt();
template<class T> inline void writeInt(T x, char end = 0);
inline void writeChar(int x);
inline void writeWord(const char *s);
static const int buf_size = 1 << 18;
inline int getChar(){
static char buf[buf_size];
static int len = 0, pos = 0;
if(pos == len) pos = 0, len = fread(buf, 1, buf_size, stdin);
if(pos == len) return -1;
return buf[pos++];
}
inline int readChar(){
int c = getChar();
while(c <= 32) c = getChar();
return c;
}
template <class T>
inline T readInt(){
int s = 1, c = readChar();
T x = 0;
if(c == '-') s = -1, c = getChar();
while('0' <= c && c <= '9') x = x * 10 + c - '0', c = getChar();
return s == 1 ? x : -x;
}
static int write_pos = 0;
static char write_buf[buf_size];
inline void writeChar(int x){
if(write_pos == buf_size) fwrite(write_buf, 1, buf_size, stdout), write_pos = 0;
write_buf[write_pos++] = x;
}
template <class T>
inline void writeInt(T x, char end){
if(x < 0) writeChar('-'), x = -x;
char s[24]; int n = 0;
while(x || !n) s[n++] = '0' + x % 10, x /= 10;
while(n--) writeChar(s[n]);
if(end) writeChar(end);
}
inline void writeWord(const char *s){
while(*s) writeChar(*s++);
}
struct Flusher{
~Flusher(){ if(write_pos) fwrite(write_buf, 1, write_pos, stdout), write_pos = 0; }
}flusher;
int n, m;
int ss = 1000000007;
int ans;
int cou[2010];
int dp[9000010];
int fac[5010] = 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inv[5010] = {0, };
int C[5010][5010];
void init(void)
{
C[0][0] = 1;
for(ll i = 1 ; i <= 4000 ; ++i)
{
C[i][0] = C[i][i] = 1;
for(ll j = 1 ; j < i ; ++j)
{
C[i][j] = C[i - 1][j - 1] + C[i - 1][j];
if(C[i][j] > ss)
C[i][j] -= ss;
}
}
}
int main(void)
{
fastio
//cin >> n >> m;
n = readInt();
m = readInt();
init();
int siz = (n << 1);
ans = fac[siz];
for(int i = siz ; i >= 1 ; --i)
{
int gap = i % m;
if(gap == 0)
gap = m;
cou[gap]++;
}
for(int i = m ; i >= 0 ; --i)
dp[i] = 1;
for(int i = 1 ; i <= n ; ++i)
{
for(int j = 1 ; j <= m ; ++j)
{
int X = cou[j];
for(int k = 1 ; (k << 1) <= X && k <= i ; ++k)
{
int num = i * (m + 1) + j;
dp[num] = (dp[i * (m + 1) + j] + (ll)dp[(i - k) * (m + 1) + j - 1] * C[X][k << 1] % ss * fac[k << 1] % ss * C[i][k]% ss);
while(abs(dp[num]) > ss)
{
if(dp[num] < 0)
dp[num] += ss;
else
dp[num] -= ss;
}
}
}
for(int j = 1 ; j <= m ; ++j)
{
int num = i * (m + 1) + j;
dp[num] = (dp[num] + dp[num - 1]);
while(abs(dp[num]) > ss)
{
if(dp[num] < 0)
dp[num] += ss;
else
dp[num] -= ss;
}
}
}
for(int i = n ; i >= 1 ; --i)
{
int num = i * (m + 1) + m;
int gap = (ll)dp[num] * C[n][i] % ss * fac[(n - i) << 1] % ss;
if(i & 1)
ans = (ans - gap);
else
ans = (ans + gap);
while(abs(ans) > ss)
{
if(ans < 0)
ans += ss;
else
ans -= ss;
}
}
ans = (ans + ss) % ss;
writeInt(ans);
Flusher();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
84568 KB |
Output is correct |
| 2 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 3 |
Correct |
11 ms |
84608 KB |
Output is correct |
| 4 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 5 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 6 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 7 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 8 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 9 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 10 |
Correct |
10 ms |
84572 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
84568 KB |
Output is correct |
| 2 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 3 |
Correct |
11 ms |
84608 KB |
Output is correct |
| 4 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 5 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 6 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 7 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 8 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 9 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 10 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 11 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 12 |
Correct |
12 ms |
84564 KB |
Output is correct |
| 13 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 14 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 15 |
Correct |
11 ms |
84516 KB |
Output is correct |
| 16 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 17 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 18 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 19 |
Correct |
10 ms |
84556 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
84568 KB |
Output is correct |
| 2 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 3 |
Correct |
11 ms |
84608 KB |
Output is correct |
| 4 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 5 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 6 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 7 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 8 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 9 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 10 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 11 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 12 |
Correct |
12 ms |
84564 KB |
Output is correct |
| 13 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 14 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 15 |
Correct |
11 ms |
84516 KB |
Output is correct |
| 16 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 17 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 18 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 19 |
Correct |
10 ms |
84556 KB |
Output is correct |
| 20 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 21 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 22 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 23 |
Correct |
11 ms |
84540 KB |
Output is correct |
| 24 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 25 |
Correct |
13 ms |
84572 KB |
Output is correct |
| 26 |
Correct |
12 ms |
84824 KB |
Output is correct |
| 27 |
Correct |
12 ms |
84620 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
84568 KB |
Output is correct |
| 2 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 3 |
Correct |
11 ms |
84608 KB |
Output is correct |
| 4 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 5 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 6 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 7 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 8 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 9 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 10 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 11 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 12 |
Correct |
12 ms |
84564 KB |
Output is correct |
| 13 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 14 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 15 |
Correct |
11 ms |
84516 KB |
Output is correct |
| 16 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 17 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 18 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 19 |
Correct |
10 ms |
84556 KB |
Output is correct |
| 20 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 21 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 22 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 23 |
Correct |
11 ms |
84540 KB |
Output is correct |
| 24 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 25 |
Correct |
13 ms |
84572 KB |
Output is correct |
| 26 |
Correct |
12 ms |
84824 KB |
Output is correct |
| 27 |
Correct |
12 ms |
84620 KB |
Output is correct |
| 28 |
Correct |
18 ms |
84572 KB |
Output is correct |
| 29 |
Correct |
18 ms |
85084 KB |
Output is correct |
| 30 |
Correct |
17 ms |
85596 KB |
Output is correct |
| 31 |
Correct |
19 ms |
84636 KB |
Output is correct |
| 32 |
Correct |
18 ms |
85084 KB |
Output is correct |
| 33 |
Correct |
18 ms |
85852 KB |
Output is correct |
| 34 |
Correct |
26 ms |
87328 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
84568 KB |
Output is correct |
| 2 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 3 |
Correct |
11 ms |
84608 KB |
Output is correct |
| 4 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 5 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 6 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 7 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 8 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 9 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 10 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 11 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 12 |
Correct |
12 ms |
84564 KB |
Output is correct |
| 13 |
Correct |
10 ms |
84568 KB |
Output is correct |
| 14 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 15 |
Correct |
11 ms |
84516 KB |
Output is correct |
| 16 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 17 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 18 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 19 |
Correct |
10 ms |
84556 KB |
Output is correct |
| 20 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 21 |
Correct |
10 ms |
84572 KB |
Output is correct |
| 22 |
Correct |
11 ms |
84572 KB |
Output is correct |
| 23 |
Correct |
11 ms |
84540 KB |
Output is correct |
| 24 |
Correct |
12 ms |
84572 KB |
Output is correct |
| 25 |
Correct |
13 ms |
84572 KB |
Output is correct |
| 26 |
Correct |
12 ms |
84824 KB |
Output is correct |
| 27 |
Correct |
12 ms |
84620 KB |
Output is correct |
| 28 |
Correct |
18 ms |
84572 KB |
Output is correct |
| 29 |
Correct |
18 ms |
85084 KB |
Output is correct |
| 30 |
Correct |
17 ms |
85596 KB |
Output is correct |
| 31 |
Correct |
19 ms |
84636 KB |
Output is correct |
| 32 |
Correct |
18 ms |
85084 KB |
Output is correct |
| 33 |
Correct |
18 ms |
85852 KB |
Output is correct |
| 34 |
Correct |
26 ms |
87328 KB |
Output is correct |
| 35 |
Correct |
64 ms |
84612 KB |
Output is correct |
| 36 |
Correct |
67 ms |
95828 KB |
Output is correct |
| 37 |
Correct |
63 ms |
84568 KB |
Output is correct |
| 38 |
Correct |
61 ms |
89368 KB |
Output is correct |
| 39 |
Correct |
55 ms |
93516 KB |
Output is correct |
| 40 |
Correct |
88 ms |
99752 KB |
Output is correct |
