some programs!!

cs101/dh_04_04_balloons_init1.py

@@ -0,0 +1,17 @@
+def solve(n: int) -> int:
+    balloons = [i for i in range(1, n + 1)]
+    while True:
+        deleted_amount = 0
+        for x in range(1, n):
+            if len(balloons) <= x * x - deleted_amount - 1 or len(balloons) == 1:
+                break
+            del balloons[x * x - deleted_amount - 1]
+            deleted_amount += 1
+        if len(balloons) == 1:
+            break
+    return balloons[0]
+
+
+if __name__ == '__main__':
+    for n in range(1, 1150):
+        print(n, "->", solve(n))