"use strict"; const {Fragment: _Fragment, jsx: _jsx, jsxs: _jsxs} = arguments[0]; const {useMDXComponents: _provideComponents} = arguments[0]; function _createMdxContent(props) { const _components = { a: "a", annotation: "annotation", code: "code", figure: "figure", h2: "h2", img: "img", li: "li", math: "math", mi: "mi", mn: "mn", mo: "mo", mrow: "mrow", msup: "msup", ol: "ol", p: "p", pre: "pre", semantics: "semantics", span: "span", ul: "ul", ..._provideComponents(), ...props.components }; return _jsxs(_Fragment, { children: [_jsx(_components.p, { children: _jsx(_components.a, { href: "https://www.acmicpc.net/problem/14226", children: "문제 링크" }) }), "\n", _jsx(_components.h2, { children: "문제" }), "\n", _jsx(_components.p, { children: "영선이는 매우 기쁘기 때문에, 효빈이에게 스마일 이모티콘을 S개 보내려고 한다." }), "\n", _jsx(_components.p, { children: "영선이는 이미 화면에 이모티콘 1개를 입력했다. 이제, 다음과 같은 3가지 연산만 사용해서 이모티콘을 S개 만들어 보려고 한다." }), "\n", _jsxs(_components.ol, { children: ["\n", _jsx(_components.li, { children: "화면에 있는 이모티콘을 모두 복사해서 클립보드에 저장한다." }), "\n", _jsx(_components.li, { children: "클립보드에 있는 모든 이모티콘을 화면에 붙여넣기 한다." }), "\n", _jsx(_components.li, { children: "화면에 있는 이모티콘 중 하나를 삭제한다." }), "\n"] }), "\n", _jsx(_components.p, { children: "모든 연산은 1초가 걸린다. 또, 클립보드에 이모티콘을 복사하면 이전에 클립보드에 있던 내용은 덮어쓰기가 된다. 클립보드가 비어있는 상태에는 붙여넣기를 할 수 없으며, 일부만 클립보드에 복사할 수는 없다. 또한, 클립보드에 있는 이모티콘 중 일부를 삭제할 수 없다. 화면에 이모티콘을 붙여넣기 하면, 클립보드에 있는 이모티콘의 개수가 화면에 추가된다." }), "\n", _jsx(_components.p, { children: "영선이가 S개의 이모티콘을 화면에 만드는데 걸리는 시간의 최솟값을 구하는 프로그램을 작성하시오." }), "\n", _jsx(_components.h2, { children: "입력" }), "\n", _jsx(_components.p, { children: "첫째 줄에 S (2 <= S <= 1000) 가 주어진다." }), "\n", _jsx(_components.h2, { children: "출력" }), "\n", _jsx(_components.p, { children: "첫째 줄에 이모티콘을 S개 만들기 위해 필요한 시간의 최솟값을 출력한다." }), "\n", _jsx(_components.h2, { children: "풀이" }), "\n", _jsxs(_components.p, { children: ["상태는 ", _jsx(_components.code, { children: "(클립보드 개수, 화면 개수)" }), " 두 가지로 잡으면 된다. 각 상태에서 가능한 연산은 현재 화면 전체 복사, 클립보드 붙여넣기, 하나 삭제 세 가지다."] }), "\n", _jsxs(_components.p, { children: ["모든 연산 비용이 1이므로 BFS를 쓰면 처음 도달한 시간이 곧 최소 시간이다. 방문 배열을 ", _jsx(_components.code, { children: "visited[clipboard][screen]" }), "으로 두고 중복 상태를 막아 주면 된다."] }), "\n", _jsxs(_components.p, { children: ["코드에서는 시작 상태를 ", _jsx(_components.code, { children: "(screen = 1, clipboard = 0)" }), "으로 두고 세 연산을 그대로 큐에 넣는다. 복사 연산은 화면의 개수를 통째로 클립보드에 옮기는 것이고, 붙여넣기는 ", _jsx(_components.code, { children: "screen + clipboard" }), ", 삭제는 ", _jsx(_components.code, { children: "screen - 1" }), " 상태로 이동하는 식이다. 각 상태를 한 번만 방문하게 만들면 같은 상황을 더 비싸게 다시 탐색할 필요가 없다."] }), "\n", _jsxs(_components.p, { children: ["또한 화면이나 클립보드 개수는 정답 범위를 크게 벗어날 필요가 없어서 ", _jsx(_components.code, { children: "1000" }), "까지만 관리해도 충분하다. 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className: "katex-html", "aria-hidden": "true", children: _jsxs(_components.span, { className: "base", children: [_jsx(_components.span, { className: "strut", style: { height: "1.0641em", verticalAlign: "-0.25em" } }), _jsx(_components.span, { className: "mord mathnormal", style: { marginRight: "0.0278em" }, children: "O" }), _jsx(_components.span, { className: "mopen", children: "(" }), _jsxs(_components.span, { className: "mord", children: [_jsx(_components.span, { className: "mord mathnormal", style: { marginRight: "0.0576em" }, children: "S" }), _jsx(_components.span, { className: "msupsub", children: _jsx(_components.span, { className: "vlist-t", children: _jsx(_components.span, { className: "vlist-r", children: _jsx(_components.span, { className: "vlist", style: { height: "0.8141em" }, children: _jsxs(_components.span, { style: { top: "-3.063em", marginRight: "0.05em" }, children: [_jsx(_components.span, { className: "pstrut", style: { height: "2.7em" } }), _jsx(_components.span, 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BOJ 14226 - 이모티콘