Иван Иванов

Generation

The trace of a square matrix is the sum of the elements of the main diagonal. Write a program that prints the trace of a given square matrix. Input data format The input to the program is a natural number. n is the number of rows and columns in the matrix, then the matrix elements (integers) line by line, separated by a space.

def trace(n: int, mat: list) -> int:
    sum = 0
    for i in range(0, n):
        sum += mat[i][i]

    return sum

Python

Generate

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