Submission details
Task:Finding inverse
Sender:kookinnam
Submission time:2025-11-18 00:01:10 +0200
Language:Python3 (PyPy3)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.04 sdetails
#2--details
#3ACCEPTED0.04 sdetails
#4ACCEPTED0.04 sdetails
#5--details
#6ACCEPTED0.04 sdetails
#7ACCEPTED0.04 sdetails
#8--details
#9ACCEPTED0.04 sdetails
#10ACCEPTED0.04 sdetails
#11--details
#12ACCEPTED0.53 sdetails
#13--details
#14--details

Code

if __name__ == "__main__":
    a, m = map(int, input().split())

    for i in range(10000000000):
        if (a * i) % m == 1:
            print(i)
            break
    else:
        print(-1)

Test details

Test 1

Verdict: ACCEPTED

input
6 7

correct output
6

user output
6

Test 2

Verdict:

input
0 7

correct output
-1

user output
(empty)

Test 3

Verdict: ACCEPTED

input
5 78

correct output
47

user output
47

Test 4

Verdict: ACCEPTED

input
89 99

correct output
89

user output
89

Test 5

Verdict:

input
0 61

correct output
-1

user output
(empty)

Test 6

Verdict: ACCEPTED

input
897 947

correct output
625

user output
625

Test 7

Verdict: ACCEPTED

input
419 538

correct output
217

user output
217

Test 8

Verdict:

input
32 938

correct output
-1

user output
(empty)

Test 9

Verdict: ACCEPTED

input
184120 505187

correct output
438779

user output
438779

Test 10

Verdict: ACCEPTED

input
264601 885661

correct output
360221

user output
360221

Test 11

Verdict:

input
40310 590135

correct output
-1

user output
(empty)

Test 12

Verdict: ACCEPTED

input
202254499 577081420

correct output
128866679

user output
128866679

Test 13

Verdict:

input
539836073 888851205

correct output
797044652

user output
(empty)

Test 14

Verdict:

input
697847215 756971670

correct output
-1

user output
(empty)