complete at jungol 1077.py 3135.py 14020.py 3006.rs

storage/jungol/py/completed/3135.py

@@ -0,0 +1,16 @@
+import sys
+
+input = sys.stdin.readline
+
+if __name__ == "__main__":
+    n = int(input())
+    arr = list(map(int, input().split()))
+    cum = [0] * (n + 1)
+
+    for i in range(1, n + 1):
+        cum[i] = cum[i - 1] + arr[i - 1]
+
+    q = int(input())
+    for _ in range(q):
+        s, e = map(int, input().split())
+        print(cum[e] - cum[s - 1])