[동전 0](https://github.com/su8y/Algorithm/blob/main/backjoon/11047.cc) [회의실 배정](https://github.com/su8y/Algorithm/blob/main/backjoon/1931.cc) [ATM](https://github.com/su8y/Algorithm/blob/main/backjoon/11399.cc) [잃어버린 괄호](https://github.com/su8y/Algorithm/blob/main/backjoon/1541.java) [주유소](https://github.com/su8y/Algorithm/blob/main/backjoon/13305.cc)
동전 0
회의실 배정
ATM
잃어버린 괄호
주유소