89차 2번 문제 풀이

Author: gmlrude

live8/test89/문제2/박희경.py

@@ -0,0 +1,20 @@
+import sys
+
+input = sys.stdin.readline
+
+n, m = map(int, input().split())
+a = list(map(int, input().split()))
+
+cnt = 0
+i, j = 0, 0
+total = 0
+while j < n:
+    total += a[j]
+    while total >= m:
+        if total == m:
+            cnt += 1
+        total -= a[i]
+        i += 1
+    j += 1
+
+print(cnt)