Pagini recente » Cod sursa (job #2244897) | Cod sursa (job #2465086) | Cod sursa (job #2722645) | Cod sursa (job #2714994) | Cod sursa (job #278701)
Cod sursa(job #278701)
#include<algorithm>
#define BAZ 1000000
#define DIM 5001
using namespace std;
long long n,b[DIM],sol[DIM],aux[DIM];
void inm2(long long x){
long long i;
long long t;
for(i=1; i<=b[0]||t; t/=BAZ,++i)
b[i]=(t+=b[i]*x)%BAZ;
b[0]=i-1;}
void inm1(){
long long i,j;
long long t;
memset(aux,0,sizeof(aux));
for(i=1; i<=b[0]; ++i){
for(j=1,t=0; j<=b[0]||t; t/=BAZ,++j)
aux[i+j-1]=(t+=aux[i+j-1]+b[i]*b[j])%BAZ;
if(i+j-2>aux[0])
aux[0]=i+j-2;}
memcpy(b,aux,sizeof(aux));}
void inm0(){
long long i,j;
long long t;
memset(aux,0,sizeof(aux));
for(i=1; i<=b[0]; ++i){
for(j=1,t=0; j<=sol[0]||t; t/=BAZ,++j)
aux[i+j-1]=(t+=aux[i+j-1]+b[i]*sol[j])%BAZ;
if(i+j-2>aux[0])
aux[0]=i+j-2;}
memcpy(sol,aux,sizeof(aux));}
void fact(){
long long i;
memset(b,0,sizeof(b));
for(i=2; i<=n; ++i)
inm2(i);}
void pow(){
long long p;
for(p=n*n; p; p>>=1){
if(p&1)
inm0();
inm1();}}
void solve(){
long long i;
scanf("%lld",&n);
b[0]=sol[0]=sol[1]=1;
b[1]=2;
pow();
fact();
inm0();
for(printf("%lld",sol[sol[0]]),i=sol[0]-1; i>0; --i){
printf("%.6lld",sol[i]);}}
int main(){
freopen("patrate2.in","r",stdin);
freopen("patrate2.out","w",stdout);
solve();
return 0;}