ABC181 - Atcoder/Python精進のための解説メモ

n = int(input())
print('White' if n % 2 == 0 else 'Black')

n = int(input())
ans = 0
for _ in range(n):
    a, b = map(int, input().split())
    ans += (b - a + 1) * (a + b) // 2
print(ans)

n = int(input())
x = []
y = []
ans = 'No'

for _ in range(n):
    xi, yi = map(int, input().split())
    x.append(xi)
    y.append(yi)

for i in range(n):
    for j in range(i + 1, n):
        for k in range(j + 1, n):
            x1 = x[i] - x[j]
            y1 = y[i] - y[j]
            x2 = x[j] - x[k]
            y2 = y[j] - y[k]
            if x1 * y2 == x2 * y1:
                ans = 'Yes'

print(ans)

from itertools import accumulate

n = int(input())
aaa = list(map(int, input().split()))

ans = 0
x = 0

acc = list(accumulate(aaa))
acc_max = list(accumulate(acc, func=max))

for i in range(n):
    ans = max(ans, x + acc_max[i])
    x += acc[i]

print(ans)