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40 lines
789 B
40 lines
789 B
#include <bits/stdc++.h>
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using namespace std;
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stack<char> s;
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int nums;
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/**
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测试用例：
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2
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[({})]
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()[]()
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*/
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char trans(char a) {
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if (a == ')') return '(';
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if (a == ']') return '[';
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if (a == '}') return '{';
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return '\0';
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}
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int main() {
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cin >> num;
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string p;
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//getline(cin, p);//读取末尾的指针
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getchar();
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while (num--) {
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while (!s.empty())s.pop();
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getline(cin, p);
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for (int i = 0; i < p.size(); i++) {
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if (s.empty()) {
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s.push(p[i]);
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continue;
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}
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if (trans(p[i]) == s.top())s.pop();
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else s.push(p[i]);
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}
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if (s.empty())printf("Yes\n");
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else printf("No\n");
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}
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return 0;
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} |