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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 |
|---|---|---|---|---|---|---|---|---|---|
| #340222 | #8047. DFS Order 4 | djwj233 | WA | 994ms | 13684kb | C++14 | 822b | 2024-02-28 19:26:54 | 2024-02-28 19:26:55 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define fo(v,a,b) for(int v = a; v <= b; v++)
#define fr(v,a,b) for(int v = a; v >= b; v--)
#define cl(a,v) memset(a, v, sizeof(a))
typedef long long ll;
const int N = 810;
int n; ll P, f[N][N], C[N][N];
int main()
{
scanf("%d%lld", &n, &P);
fo(i, 0, n) {
C[i][0] = 1;
fo(j, 1, i) C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % P;
}
n--;
fo(i, 0, n) f[0][i] = 1;
fo(x, 1, n) fo(y, 0, n - x) {
fo(i, 0, x - 1)
f[x][y] = (f[x][y] + C[x - 1 + y][i] * f[i][0] % P * f[x - 1 - i][y]) % P;
fo(i, 0, x - 2) {
int j = x - 1 - i;
f[x][y] = (f[x][y] + P - f[i][j + y] * f[j][y]) % P;
}
}
printf("%lld\n", f[n][0]);
return 0;
}
/*
*/
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5980kb
input:
4 114514199
output:
2
result:
ok 1 number(s): "2"
Test #2:
score: 0
Accepted
time: 1ms
memory: 6060kb
input:
10 998244353
output:
11033
result:
ok 1 number(s): "11033"
Test #3:
score: 0
Accepted
time: 3ms
memory: 6656kb
input:
100 1000000007
output:
270904395
result:
ok 1 number(s): "270904395"
Test #4:
score: 0
Accepted
time: 837ms
memory: 13024kb
input:
756 1001338769
output:
901942543
result:
ok 1 number(s): "901942543"
Test #5:
score: 0
Accepted
time: 973ms
memory: 13684kb
input:
793 1009036033
output:
301770320
result:
ok 1 number(s): "301770320"
Test #6:
score: 0
Accepted
time: 852ms
memory: 13308kb
input:
759 1005587659
output:
846376219
result:
ok 1 number(s): "846376219"
Test #7:
score: 0
Accepted
time: 903ms
memory: 13116kb
input:
773 1007855479
output:
1398019
result:
ok 1 number(s): "1398019"
Test #8:
score: 0
Accepted
time: 823ms
memory: 13044kb
input:
751 1006730639
output:
321287237
result:
ok 1 number(s): "321287237"
Test #9:
score: 0
Accepted
time: 906ms
memory: 13360kb
input:
778 1007760653
output:
430322899
result:
ok 1 number(s): "430322899"
Test #10:
score: 0
Accepted
time: 994ms
memory: 13408kb
input:
798 1007543827
output:
688720826
result:
ok 1 number(s): "688720826"
Test #11:
score: 0
Accepted
time: 988ms
memory: 13312kb
input:
796 1004841413
output:
258829347
result:
ok 1 number(s): "258829347"
Test #12:
score: -100
Wrong Answer
time: 927ms
memory: 13144kb
input:
775 1005185189
output:
-260906581
result:
wrong answer 1st numbers differ - expected: '744278608', found: '-260906581'