답안 #866985

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
866985	2023-10-27T14:35:03 Z	haire	세 명의 친구들 (BOI14_friends)	Python 3	100 / 100	257 ms	51968 KB

friends

n=int(input())
if n%2==0:
    print("NOT POSSIBLE")
    exit()
n//=2
s=[*input()]
 
def isValid(a,b):
    return a==b
 
def bad(i):
    temp=s[:i]+s[i+1:]
    return isValid(temp[:n],temp[n:])
 
if isValid(s[1:n+1],s[n+1:]) and isValid(s[:n],s[n:-1]):
    if s[1:n+1] != s[:n]:
        print("NOT UNIQUE")
        exit()
 
 
if isValid(s[1:n+1],s[n+1:]):
    print("".join(s[1:n+1]))
    exit()
 
if isValid(s[:n],s[n:-1]):
    print("".join(s[n:-1]))
    exit()
 
i=0
j=n+1
while i<n:
    if s[i]!=s[j]:
        wrong=i
        if bad(i):
            print("".join(s[n+1:]))
            exit()
        else:
            break
    i+=1
    j+=1
 
i=0
j=n
while i<n+1:
    if s[i]!=s[j]:
        wrong=j
        if bad(j):
            print("".join(s[:n]))
            exit()
        else:
            break
    i+=1
    j+=1
 
print("NOT POSSIBLE")

Subtask #1

35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	2908 KB	Output is correct
2	Correct	11 ms	2908 KB	Output is correct
3	Correct	11 ms	3104 KB	Output is correct
4	Correct	11 ms	2908 KB	Output is correct
5	Correct	11 ms	3056 KB	Output is correct
6	Correct	10 ms	2908 KB	Output is correct
7	Correct	10 ms	3112 KB	Output is correct
8	Correct	10 ms	2908 KB	Output is correct
9	Correct	11 ms	2908 KB	Output is correct
10	Correct	10 ms	2908 KB	Output is correct
11	Correct	10 ms	2908 KB	Output is correct
12	Correct	11 ms	2908 KB	Output is correct
13	Correct	10 ms	2908 KB	Output is correct
14	Correct	10 ms	3108 KB	Output is correct
15	Correct	13 ms	2908 KB	Output is correct
16	Correct	11 ms	2908 KB	Output is correct
17	Correct	10 ms	2908 KB	Output is correct
18	Correct	10 ms	2908 KB	Output is correct
19	Correct	11 ms	2908 KB	Output is correct
20	Correct	11 ms	3104 KB	Output is correct
21	Correct	11 ms	3100 KB	Output is correct
22	Correct	10 ms	2908 KB	Output is correct
23	Correct	10 ms	3004 KB	Output is correct
24	Correct	10 ms	2908 KB	Output is correct
25	Correct	12 ms	2884 KB	Output is correct
26	Correct	10 ms	2908 KB	Output is correct
27	Correct	10 ms	2908 KB	Output is correct
28	Correct	10 ms	2908 KB	Output is correct
29	Correct	11 ms	2888 KB	Output is correct
30	Correct	10 ms	2908 KB	Output is correct
31	Correct	10 ms	2908 KB	Output is correct
32	Correct	10 ms	2908 KB	Output is correct
33	Correct	11 ms	3100 KB	Output is correct
34	Correct	10 ms	2964 KB	Output is correct
35	Correct	13 ms	2908 KB	Output is correct
36	Correct	11 ms	2908 KB	Output is correct
37	Correct	10 ms	2908 KB	Output is correct
38	Correct	11 ms	2908 KB	Output is correct
39	Correct	11 ms	2908 KB	Output is correct
40	Correct	13 ms	2908 KB	Output is correct
41	Correct	10 ms	2908 KB	Output is correct
42	Correct	12 ms	2908 KB	Output is correct
43	Correct	15 ms	3060 KB	Output is correct
44	Correct	14 ms	2908 KB	Output is correct
45	Correct	10 ms	2908 KB	Output is correct
46	Correct	10 ms	2908 KB	Output is correct
47	Correct	10 ms	2908 KB	Output is correct
48	Correct	11 ms	2908 KB	Output is correct
49	Correct	10 ms	2968 KB	Output is correct
50	Correct	10 ms	2908 KB	Output is correct
51	Correct	11 ms	2908 KB	Output is correct
52	Correct	10 ms	3160 KB	Output is correct
53	Correct	11 ms	3008 KB	Output is correct
54	Correct	10 ms	3092 KB	Output is correct

Subtask #2

65.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	257 ms	51804 KB	Output is correct
2	Correct	110 ms	51860 KB	Output is correct
3	Correct	100 ms	51856 KB	Output is correct
4	Correct	193 ms	51968 KB	Output is correct
5	Correct	169 ms	51864 KB	Output is correct
6	Correct	10 ms	2908 KB	Output is correct
7	Correct	113 ms	36564 KB	Output is correct
8	Correct	65 ms	33016 KB	Output is correct
9	Correct	73 ms	33268 KB	Output is correct
10	Correct	64 ms	33120 KB	Output is correct
11	Correct	120 ms	43828 KB	Output is correct
12	Correct	10 ms	2908 KB	Output is correct
13	Correct	11 ms	3004 KB	Output is correct
14	Correct	15 ms	3420 KB	Output is correct
15	Correct	10 ms	2908 KB	Output is correct
16	Correct	10 ms	2908 KB	Output is correct
17	Correct	10 ms	2908 KB	Output is correct
18	Correct	10 ms	2940 KB	Output is correct
19	Correct	11 ms	2920 KB	Output is correct
20	Correct	11 ms	2908 KB	Output is correct
21	Correct	14 ms	2908 KB	Output is correct
22	Correct	11 ms	2908 KB	Output is correct
23	Correct	11 ms	2908 KB	Output is correct
24	Correct	10 ms	2908 KB	Output is correct
25	Correct	10 ms	2908 KB	Output is correct
26	Correct	10 ms	2908 KB	Output is correct
27	Correct	11 ms	2908 KB	Output is correct
28	Correct	12 ms	2908 KB	Output is correct
29	Correct	11 ms	2908 KB	Output is correct
30	Correct	10 ms	3112 KB	Output is correct
31	Correct	10 ms	2908 KB	Output is correct
32	Correct	10 ms	2908 KB	Output is correct
33	Correct	10 ms	2936 KB	Output is correct
34	Correct	11 ms	2908 KB	Output is correct
35	Correct	11 ms	3100 KB	Output is correct
36	Correct	10 ms	3100 KB	Output is correct
37	Correct	10 ms	3012 KB	Output is correct
38	Correct	10 ms	3100 KB	Output is correct
39	Correct	11 ms	2988 KB	Output is correct
40	Correct	10 ms	2908 KB	Output is correct
41	Correct	10 ms	2928 KB	Output is correct
42	Correct	11 ms	2908 KB	Output is correct
43	Correct	11 ms	3072 KB	Output is correct
44	Correct	10 ms	2908 KB	Output is correct
45	Correct	11 ms	2908 KB	Output is correct
46	Correct	10 ms	3104 KB	Output is correct
47	Correct	10 ms	3108 KB	Output is correct
48	Correct	11 ms	3180 KB	Output is correct
49	Correct	11 ms	2908 KB	Output is correct
50	Correct	11 ms	2904 KB	Output is correct
51	Correct	10 ms	2908 KB	Output is correct
52	Correct	10 ms	2908 KB	Output is correct
53	Correct	11 ms	2908 KB	Output is correct
54	Correct	10 ms	2908 KB	Output is correct