Compile Error
foo.cc:7:23: error: stray '#' in program
7 | continue # No operations needed, this element is already valid
| ^
foo.cc:8:11: error: invalid preprocessing directive #If; did you mean #if?
8 | # If gcd(A[i], X) is not valid, check how many increments are needed
| ^~
| if
foo.cc:10:55: error: stray '#' in program
10 | total_operations += diff if diff != X else 0 # Only add the remainder to make it divisible
| ^
foo.cc:14:7: error: invalid preprocessing directive #Read
14 | # Read the number of test cases
| ^~~~
foo.cc:18:11: error: invalid preprocessing directive #Read
18 | # Read the test case input values
| ^~~~
foo.cc:22:11: error: invalid preprocessing directive #Split
22 | # Split the array into two halves
| ^~~~~
foo.cc:25:11: error: invalid preprocessing directive #First
25 | # First half should be (X+1)-ordinary
| ^~~~~
foo.cc:27:11: error: invalid preprocessing directive #Second
27 | # Second half should be X-ordinary
| ^~~~~~
foo.cc:30:11: error: invalid preprocessing directive #Check
30 | # Check if we can make the first half (X+1)-ordinary
| ^~~~~
foo.cc:33:11: error: invalid preprocessing directive #Check
33 | # Check if we can make the second half X-ordinary
| ^~~~~
foo.cc:36:11: error: invalid preprocessing directive #If; did you mean #if?
36 | # If we can make both halves ordinary, return the total number of operations
| ^~
| if
foo.cc:1:1: error: 'import' does not name a type
1 | import math
| ^~~~~~
foo.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Code
import math
def min_operations_to_make_gcd(A, X, N):
total_operations = 0
for i in range(N):
if math.gcd(A[i], X) > 1:
continue # No operations needed, this element is already valid
# If gcd(A[i], X) is not valid, check how many increments are needed
diff = X - A[i] % X
total_operations += diff if diff != X else 0 # Only add the remainder to make it divisible
return total_operations
def solve():
# Read the number of test cases
T = int(input())
for _ in range(T):
# Read the test case input values
N, X = map(int, input().split())
A = list(map(int, input().split()))
# Split the array into two halves
half_size = N // 2
# First half should be (X+1)-ordinary
first_half = A[:half_size]
# Second half should be X-ordinary
second_half = A[half_size:]
# Check if we can make the first half (X+1)-ordinary
first_half_operations = min_operations_to_make_gcd(first_half, X + 1, half_size)
# Check if we can make the second half X-ordinary
second_half_operations = min_operations_to_make_gcd(second_half, X, N - half_size)
# If we can make both halves ordinary, return the total number of operations
if first_half_operations != -1 and second_half_operations != -1:
print(first_half_operations + second_half_operations)
else:
print(-1)
Information
- Submit By
-
Bullet LV 4
- Type
- Submission
- Problem
- P1168 F. x ordinary array
- Language
- C++17 (G++ 13.2.0)
- Submit At
- 2025-06-11 21:23:35
- Judged At
- 2025-06-11 21:23:35
- Judged By
-
judge
- Score
- 0
- Total Time
- 0ms
- Peak Memory
- 0 Bytes