89차 2번 문제풀이

Author: hangyeol

live8/test89/문제2/백한결.py

@@ -0,0 +1,24 @@
+def main():
+    N, M = map(int, input().split())
+
+    A = list(map(int, input().strip().split()))[:N]
+
+    left = 0
+    sum = 0
+
+    count = 0
+
+    for right in range(N):
+        sum += A[right]
+
+        while sum >= M:
+            if sum == M:
+                count += 1
+            sum -= A[left]
+            left += 1
+
+    print(count)
+
+
+if __name__ == '__main__':
+    main()