89차 1번 문제풀이

Author: Yujin-Baek

live8/test89/문제1/백유진.py

@@ -0,0 +1,24 @@
+n, m = map(int, input().split())
+arr = list(map(int, input().split()))
+
+answer = 0
+
+start = 0
+end = 0
+
+cum_sum = arr[start]
+
+while end < len(arr):
+  if cum_sum == m:
+    answer += 1
+    cum_sum -= arr[start]
+    start += 1
+  elif cum_sum < m:
+    end += 1
+    if end < len(arr):
+      cum_sum += arr[end]
+  else:
+    cum_sum -= arr[start]
+    start += 1
+
+print(answer)