Bitcoin uses a hashing algorithm called SHA-256. SHA-256 is used by Bitcoin miners to solve complex math problems and validate transactions on the Bitcoin network.
Bitcoin miners are rewarded with new bitcoins for their work.
Scrypt is an alternative hashing algorithm to SHA-256. Scrypt is used by some alternative cryptocurrencies, such as Litecoin.
Litecoin miners are rewarded with new litecoins for their work.
Bitcoin and Litecoin use different proof-of-work algorithms, so they are not compatible. You cannot mine bitcoins with a Litecoin miner, and you cannot mine litecoins with a Bitcoin miner.
Some cryptocurrencies, such as Namecoin and Dogecoin, use alternative proof-of-work algorithms that are compatible with the Bitcoin network. These cryptocurrencies can be mined alongside bitcoins, and they can be exchanged for bitcoins on cryptocurrency exchanges.
In conclusion, Bitcoin does not use the Scrypt algorithm.