상수 하나 정해놓고 되는지 안되는지 이분탐색


랜선자르기: https://www.acmicpc.net/problem/1654

EKO: https://www.acmicpc.net/problem/2805

AERODROM: https://www.acmicpc.net/problem/3079

ZIVICA: https://www.acmicpc.net/problem/3090

보석 줍기: https://www.acmicpc.net/problem/2102

K번째 수: https://www.acmicpc.net/problem/1300