Create 11723_1.cpp

Appendix C/11723_1.cpp

@@ -0,0 +1,40 @@
+// http://boj.kr/1febea8e97bb4493925075f36d6efb8d
+#include <bits/stdc++.h>
+using namespace std;
+
+int chk[20];
+
+int main(){
+  ios::sync_with_stdio(0);
+  cin.tie(0);
+
+  int m;
+  cin >> m;
+  while(m--){
+    string com;
+    int x;
+    cin >> com;
+    if(com == "add"){
+      cin >> x;
+      chk[x-1] = 1;      
+    }
+    else if(com == "remove"){
+      cin >> x;
+      chk[x-1] = 0;
+    }
+    else if(com == "check"){
+      cin >> x;
+      cout << chk[x-1] << '\n';
+    }
+    else if(com == "toggle"){
+      cin >> x;
+      chk[x-1] = 1 ^ chk[x-1];
+    }
+    else if(com == "all"){
+      fill(chk, chk+20, 1);
+    }
+    else{ // empty
+      fill(chk, chk+20, 0);
+    }
+  }
+}