Cod sursa(job #2151393)
Utilizator | Data | 4 martie 2018 13:50:21 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <cstdio>
using namespace std;
typedef long long LL;
const int MOD = 1999999973;
LL logPow(LL x, LL p) {
LL ans = 1;
while (p) {
if ((p >>= 1) & 1)
ans = (ans * x) % MOD;
x = (x * x) % MOD;
}
return ans;
}
int main()
{
freopen("lgput.in", "r", stdin);
freopen("lgput.out", "w", stdout);
LL a, b;
scanf("%lld %lld ", &a, &b);
printf("%lld\n", logPow(a % MOD, b));
return 0;
}