Problem	lightningrod
User	purpleblackferret
Submission Time	2023-12-31 20:30:41
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lightningrod.cpp:29:17: error: lambda-expression in template-argument only available with ‘-std=c++2a’ or ‘-std=gnu++2a’
29 | auto joinfunc = [](T a, T b) { return a + b; }, T identity = T() >
| ^