subtree(users/wpcarro): docking briefcase at '24f5a642' r/3226

git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c09813172c79820bcf526bb10cf4208
git-subtree-split: 24f5a642af3aa1627bbff977f0a101907a02c69f
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789

1 files changed, 57 insertions, 0 deletions

diff --git a/users/wpcarro/scratch/deepmind/part_two/top-scores.ts b/users/wpcarro/scratch/deepmind/part_two/top-scores.ts
new file mode 100644
index 0000000000..79c10c8832
--- /dev/null
+++ b/users/wpcarro/scratch/deepmind/part_two/top-scores.ts
@@ -0,0 +1,57 @@
+function sortScores(xs: Array<number>, highest: number): Array<number> {
+  const counts: Array<number> = [];
+  const result: Array<number> = [];
+
+  // Initialize counts
+  for (let i = 0; i <= highest; i += 1) {
+    counts.push(0);
+  }
+
+  for (let i = 0; i < xs.length; i += 1) {
+    counts[xs[i]] += 1;
+  }
+
+  for (let i = highest; i >= 0; i -= 1) {
+    let count: number = counts[i];
+
+    for (let j = 0; j < count; j += 1) {
+      result.push(i);
+    }
+  }
+
+  return result;
+}
+
+// Tests
+let desc = "no scores";
+let actual = sortScores([], 100);
+let expected = [];
+assertEqual(JSON.stringify(actual), JSON.stringify(expected), desc);
+
+desc = "one score";
+actual = sortScores([55], 100);
+expected = [55];
+assertEqual(JSON.stringify(actual), JSON.stringify(expected), desc);
+
+desc = "two scores";
+actual = sortScores([30, 60], 100);
+expected = [60, 30];
+assertEqual(JSON.stringify(actual), JSON.stringify(expected), desc);
+
+desc = "many scores";
+actual = sortScores([37, 89, 41, 65, 91, 53], 100);
+expected = [91, 89, 65, 53, 41, 37];
+assertEqual(JSON.stringify(actual), JSON.stringify(expected), desc);
+
+desc = "repeated scores";
+actual = sortScores([20, 10, 30, 30, 10, 20], 100);
+expected = [30, 30, 20, 20, 10, 10];
+assertEqual(JSON.stringify(actual), JSON.stringify(expected), desc);
+
+function assertEqual(a, b, desc) {
+  if (a === b) {
+    console.log(`${desc} ... PASS`);
+  } else {
+    console.log(`${desc} ... FAIL: ${a} != ${b}`);
+  }
+}