题解 | 矩阵和向量的点积

import numpy as np
def matrix_vector_dot_product(matrix, vector):
    # 补全代码
    matrix=np.array(matrix)
    vector=np.array(vector)
    if matrix.shape[1]!=vector.shape[0]:
        return -1
    result=np.dot(matrix,vector)
    return result.tolist()

# 主程序
if __name__ == "__main__":
    # 输入矩阵和向量
    matrix_input = input()
    vector_input = input()

    # 处理输入
    import ast
    matrix = ast.literal_eval(matrix_input)
    vector = ast.literal_eval(vector_input)

    # 调用函数计算点积
    output = matrix_vector_dot_product(matrix, vector)
    
    # 输出结果
    print(output)