'commit'

TangDou/XiTi/1390.cpp

@@ -0,0 +1,24 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    //输入+输出重定向
+    //freopen("../x.in", "r", stdin);
+    //freopen("../x.out", "w", stdout);
+
+    string s;
+    getline(cin, s);
+    stack<char> st;
+    for (int i = 0; i < s.size(); ++i) {
+        if (s[i] == '(') st.push('(');
+        if (s[i] == ')') st.pop();
+    }
+
+    if (st.empty()) cout << "YES" << endl;
+    else cout << "NO" << endl;
+    //关闭文件
+    //fclose(stdin);
+    //fclose(stdout);
+    return 0;
+}