- Problem refference
- programmers, https://programmers.co.kr/
- baekjoon, https://www.acmicpc.net/
- SW Expert Academy, https://swexpertacademy.com
- STL
- algorithms
- Immutability sequence find, for_each
- Mutability sequence copy, generate, remove, replace, fill, swap, reverse, transform
- sort, binary_search, merge
- accumulate, inner_product