Precreation contest files

misc/so_mu_dung/code.py

@@ -0,0 +1,18 @@
+import math
+
+highest_num = [0]*31
+
+a = [int(_) for _ in input().split()]
+
+for i in a:
+    for k in range(32, 0, -1):
+        if (i % 2**k == 0):
+            highest_num[k] += 1
+
+res = 0
+for i in highest_num:
+    if (i <= 1):
+        continue
+    res += math.comb(i, 2)
+print(res)
+