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CF: B. almost Ternary Matrix [symétrie + règles de recherche + Construction + I am Construction Waste]
2022-07-05 18:58:00 【Rétrospective du roi dragon blanc】
Analyse
Tendance à la symétrie,Parce que oui2Multiple de,Alors considérez l'unit é de base2 * 2
1 0 | 0 1
0 1 | 1 0
ABA…
BAB…
…
Nous définissons ci - dessus deux types particuliers de2 * 2DeAEtB
Et puis on peut construireABL'aspect entrelacé,Conforme au premier et au deuxième exemple
ac code
import sys
input = sys.stdin.readline
for _ in range(int(input())):
n, m = list(map(int, input().split()))
# 1 0 | 0 1
# 0 1 | 1 0
# ABA...
# BAB...
# ...
even = [1, 0, 0, 1]
odd = [0, 1, 1, 0]
ans = [[0] * m for _ in range(n)]
for i in range(n):
for j in range(m):
if i % 4 == 0 or i % 4 == 3:
ans[i][j] = even[j % 4]
else:
ans[i][j] = odd[j % 4]
for row in ans:
print(*row)
Résumé
Je suis une ordure de construction.
Je cherche des petits trucs réguliers
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