add: boj/1715.py

boj/1715.py

@@ -0,0 +1,25 @@
+import sys
+from queue import PriorityQueue
+input=sys.stdin.readline
+n=int(input().rstrip())
+pq=PriorityQueue()
+
+for _ in range(n):
+    pq.put(int(input().rstrip()))
+
+l=[]
+while pq.qsize()>1:
+    a=pq.get()
+    b=pq.get()
+    pq.put(a+b)
+    l.append(a+b)
+
+while len(l)>1:
+    a=l.pop()
+    b=l.pop()
+    l.append(a+b)
+
+if len(l)==0:
+    print(0)
+else:
+    print(l.pop())