矩阵乘法计算量估算

def solve(____):
    matrices = [tuple(map(int, m.split(____))) for m in matrices.split(____)]
    n = len(____)
    dp = [[____] * n for _ in range(____)]
    for length in range(____, n + ____):
        for i in range(____):
            j = i + length - ____
            dp[i][j] = float(____)
            for k in range(____):
                cost = dp[i][k] + dp[k + ____][j] + matrices[i][____] * matrices[k][____] * matrices[j][____]
                dp[i][j] = min(____)
    print(____)