update

OneCodeMonkey · OneCodeMonkey · commit 8c2ae1d9e6b4 · 2025-08-16T22:33:17.000+08:00
diff --git a/codeForces/Codeforces_2106A_Dr_TC.java b/codeForces/Codeforces_2106A_Dr_TC.java
@@ -0,0 +1,27 @@
+// Time: 296 ms 
+// Memory: 500 KB
+// .
+// T:O(sum(ni)), S:O(1)
+// 
+import java.util.Scanner;
+
+public class Codeforces_2106A_Dr_TC {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int t = sc.nextInt();
+        for (int i = 0; i < t; i++) {
+            int n = sc.nextInt(), count1 = 0, count0 = 0, ret = 0;
+            String s = sc.next();
+            for (char c : s.toCharArray()) {
+                if (c == '1') {
+                    count1++;
+                } else {
+                    count0++;
+                }
+            }
+            ret = count1 * (n - 1) + count0;
+
+            System.out.println(ret);
+        }
+    }
+}
diff --git a/codeForces/Codeforces_2117A_False_Alarm.java b/codeForces/Codeforces_2117A_False_Alarm.java
@@ -0,0 +1,33 @@
+// Time: 280 ms 
+// Memory: 700 KB
+// .
+// T:O(sum(ni)), S:O(1)
+// 
+import java.util.Scanner;
+
+public class Codeforces_2117A_False_Alarm {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int t = sc.nextInt();
+        for (int i = 0; i < t; i++) {
+            int n = sc.nextInt(), x = sc.nextInt(), firstCloseIndex = -1, lastCloseIndex = 0;
+            for (int j = 0; j < n; j++) {
+                int a = sc.nextInt();
+                if (a == 1) {
+                    if (firstCloseIndex == -1) {
+                        firstCloseIndex = j;
+                    }
+                    lastCloseIndex = j;
+                }
+            }
+            boolean ret = false;
+            if (firstCloseIndex == -1) {
+                ret = true;
+            } else {
+                ret = lastCloseIndex - firstCloseIndex < x;
+            }
+
+            System.out.println(ret ? "YES" : "NO");
+        }
+    }
+}
