Submission #2529670

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Source Code Expand

# -*- coding: utf-8 -*-
def inpl(): return map(int, input().split())
N = int(input())

A = [int(input()) for _ in range(N)]
ans = 0

for i in range(N-1):
    d, m = divmod(A[i], 2)
    if m and A[i+1]>0:
        d += 1
        A[i+1] -= 1
    ans += d

ans += A[-1]//2
print(ans)

Submission Info

Judge Result