⌨️
[AtCoder]ABC-224|B - Mongeness
設問ページ
提出結果
def getIntMap():
return map(int, input().split())
def getIntListRow(N):
return [list(map(int, input().split())) for _ in range(N)]
def main():
h, w = getIntMap()
a = getIntListRow(h)
f = True
for y in range(h - 1):
for x in range(w - 1):
for i in range(x + 1, w):
p1 = a[y][x]
q1 = a[y + 1][i]
p2 = a[y + 1][x]
q2 = a[y][i]
if p1 + q1 > p2 + q2:
f = False
break
print('Yes' if f else 'No')
if __name__ == "__main__":
main()
Discussion