Submission Details
Severity:
using x=x+y is more gas efficient than x+=y
Summary
using x=x+y is more gas efficient than x+=y
Vulnerability Details
x += y/x -= y costs more gas than x = x + y/x = x - y for state variables .
Impact
save 20 gas unit per instance
gas saved = 20 * 10 = 200
Tools Used
manual review
Recommendations
use x=x+y instead of x+=y
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628 USDC / LOC
18,000 USDC
2,000 USDC
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