Все задачи на 5.10.17 13:00

uts/session_py/dist_march_2k17/Sherlock.py

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+import sys
+
+sys.stdin = open("input.txt", "r")
+sys.stdout = open("output.txt", "w")
+
+test_num = int(input())
+for test in range(test_num):
+    b = 'NO'
+    n = int(input())
+    a = list(map(int, input().split()))
+    if n == 1:
+        b = 'YES'
+    elif n == 2:
+        b = 'NO'
+    else:
+        left = 0
+        right = sum(a[1:])
+        for i in range(1, n-1):
+            left += a[i - 1]
+            right -= a[i]
+            if left == right:
+                b = 'YES'
+                break
+    print(b)