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CodeObject/storage/zeta/_static/34031.html
2026-04-27 09:44:16 +09:00

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<!DOCTYPE html>
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<title>BOJ 34031 - Offline</title>
<style>
:root {
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* { box-sizing: border-box; }
body {
margin: 0;
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.header {
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.section {
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pre {
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q {
color: #114f50;
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background: #edf8f8;
border-radius: 6px;
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.math-inline math {
font-size: 1em;
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.math-block {
margin: 10px 0;
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table { border-collapse: collapse; width: 100%; }
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img { max-width: 100%; height: auto; }
</style>
</head>
<body>
<main>
<header class="header">
<h1>하이터치☆메모리</h1>
</header>
<article class="section">
<h2>문제</h2>
<p><code>(</code><code>)</code>만으로 이루어진 문자열을 괄호 문자열이라 한다. 그 중에서도 올바른 괄호 문자열은 다음과 같이 정의된다.</p>
<ol>
<li>빈 문자열은 올바른 괄호 문자열이다.</li>
<li>문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span>가 올바른 괄호 문자열일 때, <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span><code>(</code><code>)</code>로 감싼 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mo stretchy="false">&#x00028;</mo><mi>S</mi><mo stretchy="false">&#x00029;</mo></mrow></math></span>도 올바른 괄호 문자열이다.</li>
<li>문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span><span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>T</mi></mrow></math></span>가 올바른 괄호 문자열일 때, 이 두 문자열을 이어붙인 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi><mo>&#x0002B;</mo><mi>T</mi></mrow></math></span>도 올바른 괄호 문자열이다.</li>
</ol>
<p>올바른 괄호 문자열의 예시로는 <code>()()()</code>, <code>(())</code>, <code>()(())()()</code>이 있다.</p>
<p>문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span>의 접두사는 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span>의 첫번째 원소를 포함하는 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>S</mi></mrow></math></span>의 부분 문자열을 의미한다. <code>abcd</code>의 접두사로는 <code>a</code>, <code>ab</code>, <code>abc</code>, <code>abcd</code>가 있다. 빈 문자열은 접두사가 될 수 없음에 유의하라.</p>
<p>두 괄호 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>A</mi></mrow></math></span>, <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>B</mi></mrow></math></span>에 대해, <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>A</mi></mrow></math></span>의 길이 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>i</mi><mspace width="0.167em" /><mo stretchy="false">&#x00028;</mo><mn>1</mn><mo>&#x02264;</mo><mi>i</mi><mo>&#x02264;</mo><mo stretchy="false">&#x0007C;</mo><mi>A</mi><mo stretchy="false">&#x0007C;</mo><mo stretchy="false">&#x00029;</mo></mrow></math></span>의 접두사를 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mi>a</mi><mi>i</mi></msub></mrow></math></span>, <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>B</mi></mrow></math></span>의 길이 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>j</mi><mspace width="0.167em" /><mo stretchy="false">&#x00028;</mo><mn>1</mn><mo>&#x02264;</mo><mi>j</mi><mo>&#x02264;</mo><mo stretchy="false">&#x0007C;</mo><mi>B</mi><mo stretchy="false">&#x0007C;</mo><mo stretchy="false">&#x00029;</mo></mrow></math></span>의 접두사를 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mi>b</mi><mi>j</mi></msub></mrow></math></span>라 할 때 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mi>a</mi><mi>i</mi></msub></mrow></math></span><span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mi>b</mi><mi>j</mi></msub></mrow></math></span>를 이어붙인 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mi>a</mi><mi>i</mi></msub><mo>&#x0002B;</mo><msub><mi>b</mi><mi>j</mi></msub></mrow></math></span>가 올바른 괄호 문자열인 순서쌍 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mo stretchy="false">&#x00028;</mo><mi>i</mi><mo>&#x0002C;</mo><mi>j</mi><mo stretchy="false">&#x00029;</mo></mrow></math></span><strong class="hyper">하이터치☆메모리</strong>라고 한다. <strong class="hyper">하이터치☆메모리</strong>의 개수를 구해보자.</p>
</article>
<article class="section">
<h2>입력</h2>
<p>첫째 줄에 괄호 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>A</mi></mrow></math></span>가 주어진다.</p>
<p>둘째 줄에 괄호 문자열 <span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mi>B</mi></mrow></math></span>가 주어진다.</p>
</article>
<article class="section">
<h2>출력</h2>
<p>첫째 줄에 <strong class="hyper">하이터치☆메모리</strong>의 개수를 출력한다.</p>
</article>
<article class="section">
<h2>제한</h2>
<ul>
<li><span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mn>1</mn><mo>&#x02264;</mo><mo stretchy="false">&#x0007C;</mo><mi>A</mi><mo stretchy="false">&#x0007C;</mo><mo>&#x02264;</mo><mn>200</mn><mspace width="0.167em" /><mn>000</mn></mrow></math></span></li>
<li><span class="math-inline"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mn>1</mn><mo>&#x02264;</mo><mo stretchy="false">&#x0007C;</mo><mi>B</mi><mo stretchy="false">&#x0007C;</mo><mo>&#x02264;</mo><mn>200</mn><mspace width="0.167em" /><mn>000</mn></mrow></math></span></li>
</ul>
</article>
<article class="section">
<h2>힌트</h2>
<p>정답이 32비트 정수 범위를 넘을 수 있으므로, C/C++에서는 <code>long long</code>, Java에서는 <code>long</code>과 같은 자료형을 사용하는 것을 권장한다.</p>
</article>
<article class="section">
<h2>예제 입력 1 복사</h2>
<pre class="sampledata" id="sample-input-1">(()
))(
</pre>
</article>
<article class="section">
<h2>예제 입력 2 복사</h2>
<pre class="sampledata" id="sample-input-2">()()
()(())
</pre>
</article>
<article class="section">
<h2>예제 출력 1 복사</h2>
<pre class="sampledata" id="sample-output-1">3
</pre>
</article>
<article class="section">
<h2>예제 출력 2 복사</h2>
<pre class="sampledata" id="sample-output-2">4
</pre>
</article>
</main>
</body>
</html>