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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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Task/Pascal-matrix-generation/C-sharp/pascal-matrix-generation.cs Normal file
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using System;
public static class PascalMatrixGeneration
{
public static void Main() {
Print(GenerateUpper(5));
Console.WriteLine();
Print(GenerateLower(5));
Console.WriteLine();
Print(GenerateSymmetric(5));
}
static int[,] GenerateUpper(int size) {
int[,] m = new int[size, size];
for (int c = 0; c < size; c++) m[0, c] = 1;
for (int r = 1; r < size; r++) {
for (int c = r; c < size; c++) {
m[r, c] = m[r-1, c-1] + m[r, c-1];
}
}
return m;
}
static int[,] GenerateLower(int size) {
int[,] m = new int[size, size];
for (int r = 0; r < size; r++) m[r, 0] = 1;
for (int c = 1; c < size; c++) {
for (int r = c; r < size; r++) {
m[r, c] = m[r-1, c-1] + m[r-1, c];
}
}
return m;
}
static int[,] GenerateSymmetric(int size) {
int[,] m = new int[size, size];
for (int i = 0; i < size; i++) m[0, i] = m[i, 0] = 1;
for (int r = 1; r < size; r++) {
for (int c = 1; c < size; c++) {
m[r, c] = m[r-1, c] + m[r, c-1];
}
}
return m;
}
static void Print(int[,] matrix) {
string[,] m = ToString(matrix);
int width = m.Cast<string>().Select(s => s.Length).Max();
int rows = matrix.GetLength(0), columns = matrix.GetLength(1);
for (int row = 0; row < rows; row++) {
Console.WriteLine("|" + string.Join(" ", Range(0, columns).Select(column => m[row, column].PadLeft(width, ' '))) + "|");
}
}
static string[,] ToString(int[,] matrix) {
int rows = matrix.GetLength(0), columns = matrix.GetLength(1);
string[,] m = new string[rows, columns];
for (int r = 0; r < rows; r++) {
for (int c = 0; c < columns; c++) {
m[r, c] = matrix[r, c].ToString();
}
}
return m;
}
}