Submission #3604543

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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 (txy[i][1] - txy[i-1][1])**2 + (txy[i][2] - txy[i-1][2])**2 > (txy[i][0] - txy[i-1][0])**2:
        print("No")
        exit()
    elif 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()
print("Yes")

Submission Info

Judge Result