Xor sum

n, q = map(int, input().split())
array = list(map(int, input().split()))

# Create the prefix XOR array
prefix = [0] * (n + 1)
for i in range(1, n + 1):
    prefix[i] = prefix[i - 1] ^ array[i - 1]

# Process queries
results = []
for i in range(2, 2 + q):
    a, b = map(int, input().split())
    result = prefix[b] ^ prefix[a - 1]
    results.append(result)

print("\n".join(map(str, results)))

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED