Create 1680. 连接连续二进制数字.js

Author: yinxin630

1680. 连接连续二进制数字.js

@@ -0,0 +1,13 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var concatenatedBinary = function (n) {
+  const MOD = BigInt(10 ** 9 + 7);
+  let result = 0n;
+  for (let i = 1n; i <= n; i++) {
+    const binStr = i.toString(2);
+    result = ((result << BigInt(binStr.length)) + i) % MOD;
+  }
+  return result;
+};