g
(n
){int i
,a
[2]={1,0},b
[2];for(i
=0;i
<n
;i
++)*b
=*a
*3+5*a
[1],b
[1]=*a
+3*a
[1],*a
=*b
,a
[1]=b
[1];printf("%d,%d",*a
,a
[1]);}
f
(n
){int p
[2][n
+3],i
,j
,k
=0,a
[2]={0};for(j
=0;j
<n
+3;j
++)p
[0][j
]=0;*p
[1]=0;(*p
)[1]=1;for(j
=0;j
<n
;j
++,k
=!k
)for(i
=1;i
<n
+3;i
++)p
[!k
][i
]=p
[k
][i
-1]+p
[k
][i
];for(i
=1;i
<n
+2;i
++)a
[!(i
%2)]+=p
[k
][i
]*pow(3,n
+1-i
)*pow(5,(i
-1)/2);printf("%d,%d",*a
,a
[1]);}
#include "stdio.h"
int main(){
int iii;
for (iii = 0; iii < 10; iii++) {
f(iii);
}
return 0;
}
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1,0
3,1
14,6
72,32
376,168
1968,880
10304,4608
53952,24128
282496,126336
1479168,661504