Submission Details
Severity:
Multiple accesses of a mapping/array should use a local variable cache
The instances below point to the second+ access of a value inside a mapping/array, within a function. Caching a mapping’s value in a local storage or calldata variable when the value is accessed multiple times, saves ~42 gas per access due to not having to recalculate the key’s keccak256 hash (Gkeccak256 - 30 gas) and that calculation’s associated stack operations. Caching an array’s struct avoids recalculating the array offsets into memory/calldata.
Recommendations
firest cache the pools[poolId]
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628 USDC / LOC
18,000 USDC
2,000 USDC
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