President Elector

Summary

Accessing storage variables within a loop is gas-inefficient because each access involves a read operation from storage. Reading from storage repeatedly can significantly increase the gas costs compared to reading from memory. To improve efficiency, storage variables should be cached in a local variable when used multiple times within a loop.

Vulnerability Details

Impact

Excessive storage reads can lead to higher gas costs, especially in loops, and can make the contract less efficient.

Tools Used

Manual review

Recommendations

Cache the storage variable in a local memory variable before entering the loop. This approach reduces the number of storage reads and lowers gas costs.