# ht

unknown
python
2 months ago
1.7 kB
9
Indexable
Never
```t = int(input("enter the program number: "))
if(t == 14):
# 14
for i in range(1, 10):
for j in range(1, 10):
print(i * j, end=" ")
print("\n")
elif(t == 15):
# 15
n = int(input())  #натуральное!
if n == 1:
print(n)
for i in range(1, n):
if(n % i == 0):
print(i, end=" ")
if(i * i != n):
print(int(n / i), end=" ")
if (i+1) * (1+i) >= n:
if ((1+i) * (1+i) == n):
print(int(n / (i+1)), end=" ")
break
elif t == 16:
n = int(input())
fl = True
for i in range(2, n):
if(n % i == 0):
fl = False
print(n, "is a composite number")
break
if i * i >= n:
break
if(fl and n != 1):
print(n, "is a prime number")
elif(n == 1):
print(n, "is a composite number")
elif t == 17:
a, b = map(int, input().split())
resheto = [1 for i in range(0, b + 1)]
resheto[1] = 0
for i in (range(2, b + 1)):
if(resheto[i] == 1):
if( a <= i <= b):
print(i, end=" ")
for j in range(i + i, b + 1, i):
resheto[j] = 0

elif(t == 18):
n = int(input())
s = 1
for i in range(2, n):
if(n % i == 0):
s += i
if(i * i != n):
s += int(n / i)
if s > n:
break
if (i+1) * (i+1) >= n:
if((i+1) * (i+1) == n):
s+= i + 1
break
if s == n:
print("YES")
else:
print("NO")
```