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// Copyright (c) 2023 Xi Xu
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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ifstream fin("a.txt"); // 打开文件“a.txt”以读取模式
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ofstream fout("b.txt"); // 打开文件“b.txt”以写入模式
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string line;
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while (getline(fin, line)) // 从文件“a.txt”中读取一行到 line 中
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{
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for (char &c : line) // 遍历 line 中的每个字符
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if (c == '(' || c == ')' || c == ',') // 如果字符是“(”或“)”或“,”
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c = ' '; // 将字符替换为空格
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fout << line << endl; // 将 line 写入文件“b.txt”中并换行
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}
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fin.close(); // 关闭文件“a.txt”
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fout.close(); // 关闭文件“b.txt”
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return 0;
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}
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