Pagini recente » Cod sursa (job #383347) | Cod sursa (job #2841437) | Cod sursa (job #902889) | Cod sursa (job #1698652) | Cod sursa (job #2267347)
#include <fstream>
#include <cstring>
using namespace std;
const int MOD = 666013;
ifstream f("kfib.in");
ofstream g("kfib.out");
int A[2][2] = {{1, 1}, {1, 0}}, I[2][2] = {{1, 0}, {0, 1}};
void multmat(int a[][2], int b[][2])
{
int c[2][2];
for(int i = 0; i < 2; i++)
for(int j = 0; j < 2; j++)
{
c[i][j] = 0;
for(int k = 0; k < 2; k++)
c[i][j] += 1LL * a[i][k] * b[k][j] % MOD;
c[i][j] %= MOD;
}
memcpy(a, c, sizeof(c));
}
void puteremat(int p)
{
while(p > 0)
{
if(p % 2 == 0)
{
multmat(A, A);
p /= 2;
}
else
{
multmat(I, A);
p--;
}
}
}
int main()
{
int k;
f>>k;
if(k<=1)
g<<k;
else
{
puteremat(k-1);
g<<I[0][0];
}
return 0;
}