formatting

Sosuke23 · Sosuke23 · commit 8661451eb405 · 2025-11-11T07:24:05.000+05:30
diff --git a/src/data_structures/fenwick.md b/src/data_structures/fenwick.md
@@ -471,24 +471,24 @@ We can find arbitrary range sums by computing the prefix sums for $l-1$ and $r$
         b[idx] += x
         idx += idx & -idx
 
-def range_add(l,r,x):
-    add(B1, l, x)
-    add(B1, r + 1, -x)
-    add(B2, l, x * (l - 1))
-    add(B2, r + 1, -x * r)
+    def range_add(l,r,x):
+        add(B1, l, x)
+        add(B1, r + 1, -x)
+        add(B2, l, x * (l - 1))
+        add(B2, r + 1, -x * r)
 
-def sum(b, idx):
-    total = 0
-    while idx > 0:
-        total += b[idx]
-        idx -= idx & -idx
-    return total
+    def sum(b, idx):
+        total = 0
+        while idx > 0:
+            total += b[idx]
+            idx -= idx & -idx
+        return total
 
-def prefix_sum(idx):
-    return sum(B1, idx) * idx -  sum(B2, idx)
+    def prefix_sum(idx):
+        return sum(B1, idx) * idx -  sum(B2, idx)
 
-def range_sum(l, r):
-    return prefix_sum(r) - prefix_sum(l - 1)
+    def range_sum(l, r):
+        return prefix_sum(r) - prefix_sum(l - 1)
     ```
 
 ## Practice Problems
