显示代码纯文本
#include<cstdio>
using namespace std;
char f[11540][11540];
int n,p,ans=0;
inline int get(int x){
x%=p;
return (x^(x>>7)^(x<<3)^(x>>2))%n+1;
}
int main(){
freopen("NC.in","r",stdin);
freopen("NC.out","w",stdout);
scanf("%d%d",&n,&p);
for(int i=1;i<=n;i++){
int t;
scanf("%d",&t);
f[0][i]=t%p;
}
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f[i][j]=get(f[i-1][j])%p;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
(ans+=(f[i][j]+=f[get(f[i-1][j])][get(f[i-1][j]+1)])%=p)%=p;
printf("%d",ans);
return 0;
}