Cod sursa(job #1825838)
Utilizator | Data | 9 decembrie 2016 19:02:47 | |
---|---|---|---|
Problema | 12-Perm | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.38 kb |
#include <stdio.h>
using namespace std;
int n,i,t,d[4];
int main()
{
FILE *f=fopen("12perm.in", "r"), *g=fopen("12perm.out", "w");
fscanf(f, "%d", &n);
d[0]=12;
d[1]=1;
d[2]=2;
d[3]=6;
for(i=5; i<=n; i++)
{
d[i&3]=(d[(i-1)&3]+d[(i-3)&3]+2*(i-2))%t;
}
fprintf(g, "%d\n", d[n&3]);
fclose(fi); fclose(fo);
return 0;
}