NOI.AC

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
#191775	#3395. 简单计数	ddh123	100	63ms	2728kb	C++11	635b	2023-10-08 18:58:17	2023-10-08 22:10:52

answer

#include<bits/stdc++.h>
using namespace std;
#define int long long
int read(){
	int x=0,f=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){
		if(ch=='-')f=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9')
		x=(x<<1)+(x<<3)+(ch^48),ch=getchar();
	return x*f;
}
int n,a[100005],b[100005],ans=1;
void solve(){
	for(int i=n,j=1,k=0;i;i--,k++){
		while(j<n&&b[j+1]>=i)j++;
		if(j==k){
			puts("0");
			return;
		}
		ans=ans*(j-k)%1000000007;
	}
	cout<<ans;
}
signed main(){
	n=read();
	for(int i=1;i<=n;i++)a[i]=read();
	for(int i=1;i<=n;i++)b[i]=read();
	sort(b+1,b+n+1,greater<int>());
	solve();
	return 0;
}

源文件, 语言: C++11

详细

小提示：点击横条可展开更详细的信息

Test #1:

score: 10

Accepted

time: 0ms

memory: 1168kb

input:

7
4 3 1 7 6 2 5
7 4 5 5 7 6 6

output:

result:

ok single line: '576'

Test #2:

score: 10

Accepted

time: 0ms

memory: 1144kb

input:

8
1 8 4 6 7 2 3 5
5 8 2 6 6 6 5 5

output:

result:

ok single line: '0'

Test #3:

score: 10

Accepted

time: 0ms

memory: 1176kb

input:

9
4 6 5 8 3 2 9 7 1
7 9 4 8 7 7 9 6 3

output:

result:

ok single line: '3456'

Test #4:

score: 10

Accepted

time: 0ms

memory: 1164kb

input:

10
7 4 2 1 5 6 8 10 3 9
10 5 5 8 4 3 10 8 8 10

output:

result:

ok single line: '7776'

Test #5:

score: 10

Accepted

time: 0ms

memory: 1176kb

input:

20
14 8 15 2 18 16 1 20 17 12 5 9 7 6 4 19 10 13 11 3
16 19 10 15 11 16 19 16 4 20 20 18 16 15 16 18...

output:

249358159

result:

ok single line: '249358159'

Test #6:

score: 10

Accepted

time: 0ms

memory: 1196kb

input:

1000
113 586 790 610 535 443 933 288 701 980 992 625 656 585 803 712 729 679 646 749 667 418 965 412...

output:

581327908

result:

ok single line: '581327908'

Test #7:

score: 10

Accepted

time: 14ms

memory: 2720kb

input:

98798
95389 54170 43879 14722 11897 91651 42220 85671 93899 87543 43914 2310 62911 40262 80849 75940...

output:

result:

ok single line: '1'

Test #8:

score: 10

Accepted

time: 13ms

memory: 2728kb

input:

100000
19593 21193 31782 88129 99039 76289 6323 19598 94821 7558 93479 48303 60436 79271 54903 75059...

output:

result:

ok single line: '1'

Test #9:

score: 10

Accepted

time: 18ms

memory: 2716kb

input:

99999
75455 28891 5231 77222 45860 70561 38762 57848 30535 67049 91445 10270 84930 33973 77067 81367...

output:

589270557

result:

ok single line: '589270557'

Test #10:

score: 10

Accepted

time: 18ms

memory: 2720kb

input:

100000
35254 88518 967 2893 38942 35271 99946 50225 64870 6504 14839 37391 85806 81742 3061 66708 88...

output:

790195877

result:

ok single line: '790195877'

Extra Test:

score: 0

Extra Test Passed