5397번 - 키로거

201902654/5397.cpp

@@ -0,0 +1,44 @@
+#include <string>
+#include <list>
+#include <iostream>
+
+using namespace std;
+
+int main() {
+    ios::sync_with_stdio(0);
+    cin.tie(0);
+    int test_case;
+    cin >> test_case;
+    for (int i=0;i<test_case;++i){
+      string input;
+      list<char> L;
+      auto cursor = L.end();
+      cin >> input;
+
+      for (char ch : input) {
+        if (ch == '<') {
+          if (cursor != L.begin()) {
+            cursor--;
+          }
+        } else if (ch == '>') {
+          if (cursor != L.end()) {
+            cursor++;
+          }
+        } else if (ch == '-') {
+          if (cursor != L.begin()) {
+            cursor--;
+            cursor = L.erase(cursor);
+          }
+        } else {
+          L.insert(cursor, ch);
+        }
+      }
+
+      for (char ch : L) {
+        cout << ch;
+      }
+      cout << '\n';
+    }
+
+    return 0;
+}