Create 1023-binary-string-with-substrings-representing-1-to-n.js

Author: everthis

1023-binary-string-with-substrings-representing-1-to-n.js

@@ -0,0 +1,16 @@
+/**
+ * @param {string} S
+ * @param {number} N
+ * @return {boolean}
+ */
+const queryString = function(S, N) {
+  for(let i = 1; i <= N; i++) {
+    let tmp = bin(i)
+    if(S.indexOf(tmp) === -1) return false
+  }
+  return true
+};
+
+function bin(num) {
+  return (num >>> 0).toString(2)
+}