git reimport

archive/2019.03/2019.03.11 - Codeforces Round #546 (Div. 2)/TaskDTestCase.java

@@ -0,0 +1,96 @@
+package chelper;
+
+import net.egork.chelper.task.Test;
+import net.egork.chelper.tester.TestCase;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+
+public class TaskDTestCase {
+  @TestCase
+  public Collection<Test> createTests() {
+    List<Test> tests = new ArrayList<>();
+
+    tests.add(test1());
+    tests.add(test2());
+    tests.add(test3());
+
+    return tests;
+  }
+
+  private Test test1() {
+    StringBuilder in = new StringBuilder();
+
+    int n = 300000;
+    int m = 500000;
+
+    in.append(n + " " + m + "\n");
+
+    for (int i = 1; i <= n; i++) {
+      in.append(i + " ");
+    }
+    in.append("\n");
+
+    int im = m;
+    for (int i = n; i >= 1; i--) {
+      for (int j = i + 1; j <= n && im > 0; j++) {
+        in.append(i + " " + j + "\n");
+        im--;
+      }
+    }
+
+    return new Test(in.toString());
+  }
+
+  private Test test2() {
+    StringBuilder in = new StringBuilder();
+
+    int n = 300000;
+    int m = 0;
+
+    in.append(n + " " + m + "\n");
+
+    for (int i = 1; i <= n; i++) {
+      in.append(i + " ");
+    }
+    in.append("\n");
+
+    int im = m;
+    for (int i = n; i >= 1; i--) {
+      for (int j = i + 1; j <= n && im > 0; j++) {
+        in.append(i + " " + j + "\n");
+        im--;
+      }
+    }
+
+    return new Test(in.toString());
+  }
+
+  private Test test3() {
+    StringBuilder in = new StringBuilder();
+
+    int n = 300000;
+    int m = 500000;
+
+    in.append(n + " " + m + "\n");
+
+    for (int i = 1; i <= n; i++) {
+      in.append(i + " ");
+    }
+    in.append("\n");
+
+    int im = m;
+    Random random = new Random(0);
+    for (int i = m; i >= 1 && im > 0; i--) {
+      int l = random.nextInt(n) + 1;
+      int r = random.nextInt(n) + 1;
+      in.append(l + " " + r + "\n");
+      im--;
+    }
+
+    return new Test(in.toString());
+  }
+}