QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #32792 | #1089. Biological Software Utilities | Wu_Ren | AC ✓ | 7ms | 3784kb | C++17 | 309b | 2022-05-23 21:51:41 | 2022-05-23 21:51:43 |
Judging History
answer
#include <bits/stdc++.h>
const int mod=998244353;
using namespace std;
int n;
int main(){
scanf("%d",&n);
if(n&1) puts("0"),exit(0);
if(n==2) puts("1"),exit(0);
n/=2;
int res=1;
for(int i=n+1;i<=2*n;i++) res=1ll*res*i%mod;
for(int i=0;i<n-2;i++) res=1ll*res*2*n%mod;
printf("%d\n",res);
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 3668kb
input:
1
output:
0
result:
ok 1 number(s): "0"
Test #2:
score: 0
Accepted
time: 2ms
memory: 3720kb
input:
2
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 3ms
memory: 3604kb
input:
3
output:
0
result:
ok 1 number(s): "0"
Test #4:
score: 0
Accepted
time: 3ms
memory: 3724kb
input:
4
output:
12
result:
ok 1 number(s): "12"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3736kb
input:
7788
output:
178152092
result:
ok 1 number(s): "178152092"
Test #6:
score: 0
Accepted
time: 7ms
memory: 3720kb
input:
1000000
output:
178454094
result:
ok 1 number(s): "178454094"
Test #7:
score: 0
Accepted
time: 3ms
memory: 3760kb
input:
12346
output:
751958800
result:
ok 1 number(s): "751958800"
Test #8:
score: 0
Accepted
time: 3ms
memory: 3728kb
input:
999996
output:
690785929
result:
ok 1 number(s): "690785929"
Test #9:
score: 0
Accepted
time: 3ms
memory: 3764kb
input:
6
output:
720
result:
ok 1 number(s): "720"
Test #10:
score: 0
Accepted
time: 3ms
memory: 3724kb
input:
10
output:
30240000
result:
ok 1 number(s): "30240000"
Test #11:
score: 0
Accepted
time: 3ms
memory: 3604kb
input:
99
output:
0
result:
ok 1 number(s): "0"
Test #12:
score: 0
Accepted
time: 3ms
memory: 3652kb
input:
100
output:
934178078
result:
ok 1 number(s): "934178078"
Test #13:
score: 0
Accepted
time: 3ms
memory: 3780kb
input:
20
output:
245111072
result:
ok 1 number(s): "245111072"
Test #14:
score: 0
Accepted
time: 3ms
memory: 3668kb
input:
38745
output:
0
result:
ok 1 number(s): "0"
Test #15:
score: 0
Accepted
time: 4ms
memory: 3608kb
input:
3848
output:
928659530
result:
ok 1 number(s): "928659530"
Test #16:
score: 0
Accepted
time: 1ms
memory: 3488kb
input:
347835
output:
0
result:
ok 1 number(s): "0"
Test #17:
score: 0
Accepted
time: 4ms
memory: 3708kb
input:
234234
output:
745247398
result:
ok 1 number(s): "745247398"
Test #18:
score: 0
Accepted
time: 3ms
memory: 3652kb
input:
12
output:
818069491
result:
ok 1 number(s): "818069491"
Test #19:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
98
output:
648803799
result:
ok 1 number(s): "648803799"
Test #20:
score: 0
Accepted
time: 3ms
memory: 3728kb
input:
124
output:
159487965
result:
ok 1 number(s): "159487965"
Test #21:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
1024
output:
318674437
result:
ok 1 number(s): "318674437"
Test #22:
score: 0
Accepted
time: 5ms
memory: 3724kb
input:
524288
output:
495260023
result:
ok 1 number(s): "495260023"
Test #23:
score: 0
Accepted
time: 3ms
memory: 3696kb
input:
524289
output:
0
result:
ok 1 number(s): "0"
Test #24:
score: 0
Accepted
time: 2ms
memory: 3596kb
input:
999999
output:
0
result:
ok 1 number(s): "0"
Test #25:
score: 0
Accepted
time: 3ms
memory: 3688kb
input:
999997
output:
0
result:
ok 1 number(s): "0"