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#pragma once
#include <cstdint>
#include "bigint.h"
Bigint gcd(Bigint a,Bigint b);
Bigint egcd(const Bigint &a,const Bigint &b,Bigint &x,Bigint &y);
Bigint expmod(const Bigint &base,const Bigint &exponent,const Bigint &modulus);
// Returns sqrt(n), rounded down if necessary
Bigint isqrt(const Bigint &n);
int ilog2(uint64_t i);
Bigint cryptrandom_big(const Bigint &upperbound); //Return value in [0,upperbound]
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