比赛 |
4043级2023省选练习赛3 |
评测结果 |
AAAAAAAAAAAAAAAAAAAA |
题目名称 |
吉夫特 |
最终得分 |
100 |
用户昵称 |
op_组撒头屯 |
运行时间 |
3.901 s |
代码语言 |
C++ |
内存使用 |
2.71 MiB |
提交时间 |
2023-03-08 19:47:12 |
显示代码纯文本
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define ld long double
#define pii pair<int,int>
#define vi vector<int>
#define si set<int>
#define unsi unordered_set<int>
#define qi queue<int>
#define sti stack<int>
#define pqi priority_queue<int>
#define mii map<int,int>
#define unmii unordered_map<int,int>
#define fi first
#define se second
#define pb push_back
#define clr(f,n) memset(f,0,sizeof(int)*(n))
#define cpy(f,g,n) memcpy(f,g,sizeof(int)*(n))
const int N=211985+5;
const int M=233333+5;
const ll mod=1000000007;
int n,m;
int a[N],pos[M];
ll f[N];
inline void md(ll &x,ll y){
(x+y<mod)?x+=y:x+=y-mod;
}
int main(){
freopen ("2017gift.in","r",stdin);
freopen ("2017gift.out","w",stdout);
scanf("%d",&n);ll ans=mod-n;
for (int i=1;i<=n;i++)scanf("%d",&a[i]),pos[a[i]]=i;
for (int i=n;i>=1;i--){
f[i]=1;
for (int j=a[i];j;j=a[i]&(j-1))if (pos[j]>i)md(f[i],f[pos[j]]);
md(ans,f[i]);
}printf("%lld\n",ans);
}