Merge pull request #10 from abc516/abc516/fisher_yates

add fisher yates

Author: abranhe

shuffling/fisheryates/fisherYates.ts

@@ -0,0 +1,8 @@
+export function fisherYates(arr: Array<number>): void {
+    for(let i = arr.length - 1; i > 0; i--){
+        const j = Math.floor(Math.random() * i );
+        const temp = arr[j];
+        arr[j] = arr[i];
+        arr[i] = temp;
+    }
+}