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with open("damesah.in", "r") as r:
n = int(r.read())
n = 4
pos = []
fpos = []
tcases = 0
def check(i, j):
for p in pos:
if i == p[0] or j == p[1]:
return False
if abs(i - p[0]) == abs(j - p[1]):
return False
return True
def check2():
for p in fpos:
dif = False
for c in p:
if c not in pos:
dif = True
if not dif:
return False
return True
def back(k = 0):
global n
global tcases
global checked
if k == n:
if(check2()):
fpos.append(pos[:])
tcases += 1
return
for i in range(0, n):
for j in range(0, n):
if [i, j] not in pos and check(i, j):
pos.append([i, j])
back(k+1)
pos.pop()
back()
with open("damesah.out", "w") as w:
tw = fpos[0][:]
tw.sort()
ttw = ""
for p in tw:
ttw += str(p[1] + 1) + " "
ttw += '\n'+str(tcases)
w.write(ttw)