'commit'

TangDou/LuoGuBook/Uva673.cpp

@@ -0,0 +1,40 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+stack<char> s;
+int nums;
+
+/**
+测试用例：
+2
+[({})]
+()[]()
+ */
+char trans(char a) {
+    if (a == ')') return '(';
+    if (a == ']') return '[';
+    if (a == '}') return '{';
+    return '\0';
+}
+
+int main() {
+    cin >> num;
+    string p;
+    //getline(cin, p);//读取末尾的指针
+    getchar();
+    while (num--) {
+        while (!s.empty())s.pop();
+        getline(cin, p);
+        for (int i = 0; i < p.size(); i++) {
+            if (s.empty()) {
+                s.push(p[i]);
+                continue;
+            }
+            if (trans(p[i]) == s.top())s.pop();
+            else s.push(p[i]);
+        }
+        if (s.empty())printf("Yes\n");
+        else printf("No\n");
+    }
+    return 0;
+}