Write some Software

#include<stdio.h> int main() { printf("This program creates a magic sqaure of a specified size.\n"); printf("The size must be an odd number between 1 and 99.\n"); int n; printf("Enter size of magic square: "); scanf("%d", &n); int magic[99][99]; int start = (n / 2); // The middle column int max = n * n; magic[0][start] = 1; int row; int col; int next_row; int next_col; int i; for (i = 2, row = 0, col = start; i < max + 1; i++) { if ((row - 1) < 0) { // If going up one will leave the top next_row = n - 1; // Go to the bottom row } else { next_row = row - 1; } // Otherwise go up one printf("In row: %d\n", row); if ((col + 1) > (n - 1)) { // If column will leave the side next_col = 0; // Wrap to first column printf("Column will leave side\n"); } else { next_col = col + 1; } // Otherwise go over one printf("In col: %d\n", col); if (magic[next_row][next_col] > 0) { // If that position is taken if (row > (n - 1)) { // If going to row below leaves bottom next_row = 0; // Go back to the top } else { next_row = row + 1; // Go to the row below next_col = col; // But stay in same column } } row = next_row; col = next_col; printf("About to put %d in row %d, col %d\n", i, row, col); magic[row][col] = i; // Put the current value in that position } // Now let's print the array int j; for (i = 0; i < n; i++) { for (j = 0; j < n; j++) { printf("%4d", magic[i][j]); } printf("\n"); } return 0; }