Submission #9116

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
9116	2014-09-27 12:31:21	kcm1700	Actual visible points (kriii2_AC)	C++14	0 / 4	12 ms	6748 KiB

AC

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <cstdio>
#include <set>
#include <algorithm>
using namespace std;
int n,m;
const int mod = 1000000007;
long long fact[203000];
long long ifact[203000];
long long invs[203000];
long long counts[100003];
int main(){
  invs[1] = 1;
  for(int i = 2; i <= 200010; i++) invs[i] = (invs[mod%i] * (mod-mod/i)) % mod;
  fact[0] = 1;
  for(int i = 1; i <= 200010; i++) fact[i] = i * fact[i-1] % mod;
  ifact[0] = 1;
  for(int i = 1; i <= 200010; i++) ifact[i] = (invs[i] * ifact[i-1]) % mod;
  scanf("%d%d",&n,&m);
  set<int> xs;
  for(int i = 0; i < m; i++) {
    int x;
    scanf("%d",&x);
    xs.insert(x);
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 0 / 1
• Subtask 2: 0 / 3