题解 | #蛇形矩阵#
if __name__ == "__main__": N = int(input()) n = 1 for i in range(0, N): n += i out = n for j in range(2 + i, N + 1): print(out, end=" ") out = out + j print(out, end=" ") print()
if __name__ == "__main__": N = int(input()) n = 1 for i in range(0, N): n += i out = n for j in range(2 + i, N + 1): print(out, end=" ") out = out + j print(out, end=" ") print()
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