Submission #3604995

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Source Code Expand

N = int(input())
txy = [[0,0,0]]
for i in range(N):
    txy.append(list(map(int,input().split())))

for i in range(1,N+1):
    if abs(txy[i][1] - txy[i-1][1]) + abs(txy[i][2] - txy[i-1][2]) > abs(txy[i][0] - txy[i-1][0]):
        print("No")
        exit()
    if txy[i][1] == txy[i-1][1] and txy[i][2] == txy[i-1][2]:
        if (txy[i][0] - txy[i-1][0]) % 2 != 0:
            print("No")
            exit()

    if (txy[i][0] - txy[i-1][0]) % 2 == 0:
        if abs(txy[i][1] - txy[i-1][1]) + abs(txy[i][2] - txy[i-1][2]) % 2 != 0:
            print("No")
            exit()
    else:
        if (abs(txy[i][1] - txy[i-1][1]) + abs(txy[i][2] - txy[i-1][2]) )% 2 == 0:
            print("No")
            exit()

print("Yes")

Submission Info

Judge Result