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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#406788 | #5099. 朝圣道 | ningago | 0 | 119ms | 26488kb | C++14 | 5.5kb | 2024-05-07 18:27:56 | 2024-05-07 18:27:57 |
Judging History
answer
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <numeric>
#include <vector>
#include <queue>
#include <map>
#include <cmath>
#include <cctype>
#include <set>
#include "pilgrimage.h"
namespace uvu
{
#define LOCAL ____________DONT_DEFINE_ME____________
// #define ll long long
// #define inf 0x3f3f3f3f
#define int long long
#define inf 0x3f3f3f3f3f3f3f3fll
#define infll 0x3f3f3f3f3f3f3f3fll
#define debug(...) fprintf(stderr, __VA_ARGS__)
#define gline debug("now is #%d\n", __LINE__)
#define pii std::pair <int, int>
#define mkp std::make_pair
#define fi first
#define se second
char _ST_;
const int BUFSIZE = (1 << 20);
char ibuf[BUFSIZE], *iS = ibuf, *iT = ibuf;
char obuf[BUFSIZE], *oS = obuf, *oT = obuf + BUFSIZE;
char getc()
{
#ifdef LOCAL
return getchar();
#else
if(iS == iT) iT = (iS = ibuf) + fread(ibuf, 1, BUFSIZE, stdin);
return iS == iT ? EOF : *iS++;
#endif
#define getchar ERR
}
void Flush() { fwrite(obuf, 1, oS - obuf, stdout); oS = obuf; }
struct Flusher { ~Flusher(){ Flush(); } }iamflusher;
void putc(char c)
{
#ifdef LOCAL
putchar(c);
#else
*oS++ = c;
if(oS == oT) Flush();
#endif
#define putchar ERR
}
template <typename T = int> T read()
{
T x = 0, f = 1; char c = getc();
for(; !isdigit(c); c = getc()) if(c == '-') f = -1;
for(; isdigit(c); c = getc()) x = (x << 3) + (x << 1) + (c ^ 48);
return x * f;
}
template <typename T> void print(T x, char c)
{
static int sta[BUFSIZE], top;
top = 0;
if(x < 0) putc('-'), x = -x;
if(!x) sta[top = 1] = 0;
for(; x; x /= 10) sta[++top] = x % 10;
for(; top; ) putc(sta[top--] ^ 48);
if(c) putc(c);
}
int readstr(char *s, int base)
{
int idx = base - 1; char c = getc();
for(; !(isdigit(c) || isalpha(c) || c == '#' || c == '.'); c = getc());
for(; isdigit(c) || isalpha(c) || c == '#' || c == '.' ; c = getc()) s[++idx] = c;
return idx - base + 1;
}
void printf(const char *s) { for(; *s; s++) putc(*s); }
template <typename T, typename ... Args>
void printf(const char *s, T x, Args ... rest)
{
for(; *s; s++)
{
if(*s != '%') { putc(*s); continue; }
s++; if(*s == 'd') print(x, 0);
else if(*s == 'c') putc(x);
printf(s + 1, rest ...);
return;
}
}
template <typename T> void ckmax(T &x, T y) { x = x > y ? x : y; }
template <typename T> void ckmin(T &x, T y) { x = x < y ? x : y; }
// #define mod 998244353
// #define mod 1000000007
// int mod;
// int sm(int x) { return x >= mod ? x - mod : x; }
// void plus_(int &x, int y) { x = sm(x + y); }
// void mul_(int &x, int y) { x = 1ll * x * y % mod; }
int ksm(int a, int b, int mod) { int res = 1; for(; b; b >>= 1, a = 1ll * a * a % mod) if(b & 1) res = 1ll * res * a % mod; return res; }
int id, k_[1000];
std::vector <int> pre[1000];
std::vector <int> invv[1000];
std::vector <int> poww[1000];
int f(int n, int p, int pk, int &tot)
{
if(!n) return 1;
int res = pre[id][pk - 1];
res = ksm(res, n / pk, pk);
res = 1ll * res * f(n / p, p, pk, tot) % pk;
tot += n / p;
res = 1ll * res * pre[id][n % pk] % pk;
// for(int i = n / pk * pk; i <= n; i++) if(i % p) res = 1ll * res * (i % pk) % pk;//, !res && ::printf("i = %lld, res = %lld\n", i, res);
// printf("f(%d %d %d) = %d\n", n, p, pk, res);
return res;
}
// 0 9 999983
// 1
// 2
// 3
// 4
// 5
// 12
// 2999
// 999999
// 1000000000000000000
void exgcd(int a, int b, int &x, int &y)
{
if(!b) { x = 1, y = 0; return; }
exgcd(b, a % b, y, x);
y -= a / b * x;
}
int inv(int x, int p)
{
int res, tmp;
exgcd(x, p, res, tmp);
res = (res % p + p) % p;
// printf("inv(%d %d) = %d\n", x, p, res);
return res;
}
int calc(int n, int m, int p, int pk)
{
int a = 0, b = 0, c = 0, res = 1;
res = 1ll * res * f(n, p, pk, a) % pk;
res = 1ll * res * invv[id][f(m, p, pk, b)] % pk;
res = 1ll * res * invv[id][f(n - m, p, pk, c)] % pk;
if(a - b - c >= k_[id]) return 0;
res = 1ll * res * poww[id][a - b - c] % pk;
return res;
}
int prime[1000], primek[1000], tot, val[1000];
int exlucas(int n, int m, int P)
{
if(n < 0 || m < 0 || n < m) return 0;
int res = 0;
for(int i = 1; i <= tot; i++) id = i, val[i] = calc(n, m, prime[i], primek[i]);
for(int i = 1; i <= tot; i++) res = (res + 1ll * (P / primek[i]) * invv[i][P / primek[i] % primek[i]] % P * val[i] % P) % P;
return res;
}
int mod, inv2;
int solve(int n)
{
// memset(h, idx = -1, sizeof(h));
// printf("C(%d %d) = %d\n", 2 * n, n, mod);
int res = n % mod * ksm(inv2, 2 * n, mod) % mod * exlucas(2 * n, n, mod) % mod;
return res;
}
char _ED_;
void init()
{
debug("%.3f MB\n", abs(&_ST_ - &_ED_) / 1024.0 / 1024);
inv2 = (mod + 1) / 2;
int p = mod; tot = 0;
for(int i = 2; i * i <= p; i++) if(!(p % i))
{
prime[++tot] = i, primek[tot] = 1;
while(!(p % i)) primek[tot] *= i, p /= i, k_[tot]++;
}
if(p != 1) ++tot, prime[tot] = primek[tot] = p;
for(int i = 1; i <= tot; i++)
{
pre[i].push_back(1);
invv[i].push_back(1);
poww[i].push_back(1);
for(int j = 1; j < primek[i]; j++)
pre[i].push_back(1ll * pre[i].back() * (j % prime[i] ? j : 1) % primek[i]),
invv[i].push_back(inv(j, primek[i])),
poww[i].push_back(1ll * poww[i].back() * prime[i] % primek[i]);
}
}
#ifdef int
#undef int
#endif
}
// int main()
// {
// freopen("tmp.in", "r", stdin);
// freopen("tmp.out", "w", stdout);
// uvu::mian(); return 0;
// }
void init (int o, int p)
{
uvu::mod = p;
uvu::init();
return;
}
int ask (long long n)
{
return uvu::solve(n);
}
詳細信息
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 119ms
memory: 26488kb
input:
1 910276 554767 6 10 7 4 10 12 9 3 3 5 7 10 5 6 1 6 3 9 6 8 12 11 8 2 12 5 9 3 8 2 12 11 2 3 4 9 2 5 5 11 6 4 8 11 3 9 2 2 8 9 2 8 9 6 2 9 2 10 10 7 5 6 4 4 11 12 8 8 2 2 4 3 3 5 6 6 8 11 6 9 9 3 4 1 2 2 6 9 9 2 3 2 12 6 1 7 2 4 12 11 4 7 6 3 9 4 6 5 3 3 12 6 2 1 1 7 2 6 5 9 11 6 3 4 11 1 2 4 5 4 10...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
wrong answer 1st numbers differ - expected: '5419', found: '0'
Subtask #2:
score: 0
Skipped
Dependency #1:
0%
Subtask #3:
score: 0
Wrong Answer
Test #5:
score: 0
Wrong Answer
time: 30ms
memory: 20220kb
input:
3 1 334547 8234
output:
0
result:
wrong answer 1st numbers differ - expected: '179079', found: '0'
Subtask #4:
score: 0
Skipped
Dependency #3:
0%
Subtask #5:
score: 0
Skipped
Dependency #4:
0%
Subtask #6:
score: 0
Time Limit Exceeded
Test #8:
score: 0
Time Limit Exceeded
input:
6 958477 522361 280121915553826833 734266539148641647 72849162479700582 274266741463686096 60278972064195458 828423669427600612 571432949203039978 518511460268700898 486268614705621285 19216283231217074 611458416727512530 175147354285288662 799769622289998997 400123443628688299 145546980862133838 40...
output:
Unauthorized output
result:
Subtask #7:
score: 0
Skipped
Dependency #3:
0%
Subtask #8:
score: 0
Wrong Answer
Test #33:
score: 0
Wrong Answer
time: 47ms
memory: 7932kb
input:
8 9963 251 831797004675585320 494759973681332858 701341496127272302 252910460485222469 250965009655458584 366193481309061299 633134388675839346 791999098066205672 196620805863610860 363773642045280947 466508590762410710 407790578717064135 181590911404670570 570642047249889864 70138464625729452 23634...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
wrong answer 25th numbers differ - expected: '204', found: '0'
Subtask #9:
score: 0
Skipped
Dependency #1:
0%