function printColumnOfMatrix(matrix: number[][], col: number) {
const rows: number = matrix.length;
for (let i: number = 0; i < rows; i++) {
console.log(matrix[i][col]);
}
}
const matrix: number[][] = [
[3, 2, 5, 1],
[4, 7, 6, 5],
[9, 3, 0, 1]
];
printColumnOfMatrix(matrix, 1);
/*
run:
2
7
3
*/