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Cod sursa(job #447493)
#include <fstream>
using namespace std;
#define SQ(i) ((i)*(i))
#define PW(i) (1<<(i))
#define min(a,b) ((a) > (b) ? (a) : (b))
#define M 10000
struct vector
{
int a, b;
}v[30], y[30];
int T, A, B, i, k1, k2, rez = 1;
int fact(int N, vector v[])
{
memset(v,0,sizeof(v));
int k = 0;
for (i = 2; SQ(i) <= N; i++)
if (N % i == 0)
{
v[++k].a = 0;
v[k].b = i;
while (N % i == 0)
{
++v[k].a;
N /= i;
}
}
if (N != 1)
v[++k].a = 1, v[k].b = N;
return k;
}
int lgput(int a,int p)
{
int sol = 1, i;
for (i = 0; PW(i) <= p; i++)
{
if ( (PW(i) & p) > 0)
sol = (sol * a) % M;
a = SQ(a) % M;
}
return sol;
}
int main()
{
ifstream f("euclid2.in");
ofstream g("euclid2.out");
f >> T;
while (T--)
{
rez = 1;
f >> A >> B;
k1 = fact(A,v), k2 = fact(B,y);
k1 = min(k1,k2);
for (i = 0; i <= k1; i++)
if (v[i].a && y[i].a && v[i].b == y[i].b) rez *= lgput(v[i].b,min(v[i].a,y[i].a));
g << rez << "\n";
}
return 0;
}