정수론 및 조합론 https://www.acmicpc.net/problem/3036 링 https://www.acmicpc.net/problem/11050 https://www.acmicpc.net/problem/11051 https://www.acmicpc.net/problem/1010 https://www.acmicpc.net/problem/9375 https://www.acmicpc.net/problem/1676 팩토리얼 0의 개수
정수론 및 조합론
https://www.acmicpc.net/problem/3036 링
https://www.acmicpc.net/problem/11050
https://www.acmicpc.net/problem/11051
https://www.acmicpc.net/problem/1010
https://www.acmicpc.net/problem/9375
https://www.acmicpc.net/problem/1676 팩토리얼 0의 개수