Chakravyuha.py

"""
CHAKRAVYUHA :
code:
"""

print("Enter the number")
num = int(input())
l = 0
h = 0
r = num
c = num
n = 1
v = 1
count = 1
a = [[0 for i in range(num)] for j in range(num)]
res = [[0, 0]]
while l < r and h < c:
    for i in range(h, c):
        a[l][i] = count
        if a[l][i] % 11 == 0:
            res.append([l, i])
            v += 1
        count += 1
    l += 1
    for i in range(l, r):
        a[i][c - 1] = count
        if a[i][c - 1] % 11 == 0:
            res.append([i, c - 1])
            v += 1
        count += 1
    c -= 1
    if l < r:
        for i in range(c - 1, h - 1, -1):
            a[r - 1][i] = count
            if a[r - 1][i] % 11 == 0:
                res.append([r - 1, i])
                v += 1
            count += 1
        r -= 1
    if h < c:
        for i in range(r - 1, l - 1, -1):
            a[i][h] = count
            if a[i][h] % 11 == 0:
                res.append([i, h])
                v += 1
            count += 1
        h += 1
for i in range(num):
    for j in range(num):
        print(a[i][j], end="\t")
    print("")

"""
Output :

Enter the number
5
1	2	3	4	5	
16	17	18	19	6	
15	24	25	20	7	
14	23	22	21	8	
13	12	11	10	9
"""