Submission #26111371


Source Code Expand

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

typedef long long ll;
typedef pair <int, int> pii;

#define fi first
#define se second
#define rez resize
#define pb push_back
#define mkp make_pair
#define eb emplace_back
#define debug(...) fprintf (stderr, __VA_ARGS__)

#define Lep(i, l, r) for (int i = l; i < r; ++ i)
#define Rep(i, r, l) for (int i = r; i > l; -- i)
#define lep(i, l, r) for (int i = l; i <= r; ++ i)
#define rep(i, r, l) for (int i = r; i >= l; -- i)

int mod;

inline int mul (int x, int y) { return 1ll * x * y % mod; }
inline void sub (int &x, int y) { x -= y; if (x < 0) x += mod; }
inline void pls (int &x, int y) { x += y; if (x >= mod) x -= mod; }
inline int dec (int x, int y) { x -= y; if (x < 0) x += mod; return x; }
inline int add (int x, int y) { x += y; if (x >= mod) x -= mod; return x; }
inline int modpow (int x, ll y, int res = 1) {
	for (y = (y + mod - 1) % (mod - 1); y; y >>= 1, x = mul (x, x)) if (y & 1) res = mul (x, res);
	return res;
}

char _c; bool _f; template <class T> inline void IN (T & x) {
	x = 0, _f = 0; while (_c = getchar (), ! isdigit (_c)) if (_c == '-') _f = 1;
	while (isdigit (_c)) x = x * 10 + _c - '0', _c = getchar (); if (_f) x = -x;
}

template <class T> inline void chkmin (T & x, T y) { if (x > y) x = y; }
template <class T> inline void chkmax (T & x, T y) { if (x < y) x = y; }

const int N = 3e2 + 5;

int n, k, f[N][N], g[N][N], binom[N][N];

int main () {
	IN (n), IN (k), IN (mod);

	lep (i, 0, n) {
		binom[i][0] = binom[i][i] = 1;
		Lep (j, 1, i) binom[i][j] = add (binom[i - 1][j], binom[i - 1][j - 1]);
	}

	rep (i, k, 0) f[1][i] = 1, g[1][i] = add (g[1][i + 1], f[1][i]);
	lep (i, 2, n + 1) rep (j, k, 0) {
		Lep (t, 1, i) pls (f[i][j], mul (binom[i - 2][t - 1], mul (f[i - t][j], g[t][j + 1])));
		g[i][j] = add (g[i][j + 1], f[i][j]);
	}
	printf ("%d\n", f[n + 1][0]);
	return 0;
}

Submission Info

Submission Time
Task E - Sequence Growing Hard
User Qiuly
Language C++ (GCC 9.2.1)
Score 1200
Code Size 1950 Byte
Status AC
Exec Time 339 ms
Memory 4836 KiB

Compile Error

./Main.cpp: In function ‘void IN(T&)’:
./Main.cpp:35:2: warning: this ‘while’ clause does not guard... [-Wmisleading-indentation]
   35 |  while (isdigit (_c)) x = x * 10 + _c - '0', _c = getchar (); if (_f) x = -x;
      |  ^~~~~
./Main.cpp:35:63: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘while’
   35 |  while (isdigit (_c)) x = x * 10 + _c - '0', _c = getchar (); if (_f) x = -x;
      |                                                               ^~

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1200 / 1200
Status
AC × 3
AC × 35
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 336 ms 4836 KiB
02.txt AC 294 ms 4604 KiB
03.txt AC 192 ms 4416 KiB
04.txt AC 2 ms 3584 KiB
05.txt AC 253 ms 4672 KiB
06.txt AC 8 ms 4776 KiB
07.txt AC 2 ms 3712 KiB
08.txt AC 294 ms 4528 KiB
09.txt AC 311 ms 4560 KiB
10.txt AC 185 ms 4348 KiB
11.txt AC 132 ms 4476 KiB
12.txt AC 2 ms 3584 KiB
13.txt AC 2 ms 3528 KiB
14.txt AC 339 ms 4540 KiB
15.txt AC 41 ms 4760 KiB
16.txt AC 225 ms 4420 KiB
17.txt AC 2 ms 3692 KiB
18.txt AC 259 ms 4592 KiB
19.txt AC 324 ms 4600 KiB
20.txt AC 80 ms 4584 KiB
21.txt AC 10 ms 4668 KiB
22.txt AC 245 ms 4788 KiB
23.txt AC 292 ms 4684 KiB
24.txt AC 5 ms 3720 KiB
25.txt AC 14 ms 3872 KiB
26.txt AC 282 ms 4500 KiB
27.txt AC 9 ms 3644 KiB
28.txt AC 68 ms 4740 KiB
29.txt AC 236 ms 4568 KiB
30.txt AC 11 ms 4084 KiB
31.txt AC 283 ms 4660 KiB
32.txt AC 328 ms 4676 KiB
s1.txt AC 2 ms 3468 KiB
s2.txt AC 2 ms 3684 KiB
s3.txt AC 47 ms 4208 KiB