답안 #396707

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
396707	2021-04-30T15:51:30 Z	Alma	세 명의 친구들 (BOI14_friends)	C++14	0 / 100	23 ms	7480 KB

friends

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int n; cin >> n;
    string s; cin >> s;

    if (n % 2 == 0) {
        cout << "NOT POSSIBLE\n";
        return 0;
    }

    // left:
    bool left = true, l = true;
    int a = 0, b = n/2;
    string leftPart = "";
    while (a < n/2 && b < n) {
        if (s[a] != s[b]) {
            if (l) {
                b++;
                l = false;
            } else {
                left = false;
            }
        }
        leftPart += s[a];
        a++; b++;
    }

    // right:
    bool right = true, r = true;
    int c = n/2+1, d = 0;
    string rightPart = "";
    while (c < n && d <= n/2) {
        if (s[c] != s[d]) {
            if (r) {
                d++;
                r = false;
            } else {
                right = false;
            }
        }
        rightPart += s[c];
        c++; d++;
    }

    if (left && right) {
        if (leftPart == rightPart) cout << leftPart << '\n';
        else cout << "NOT UNIQUE\n";
    } else if (left) {
        cout << leftPart << '\n';
    } else if (right) {
        cout << rightPart << '\n';
    } else {
        cout << "NOT POSSIBLE\n";
    }

    return 0;
}

Subtask #1

0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	208 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Incorrect	1 ms	204 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

Subtask #2

0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	23 ms	6112 KB	Output is correct
2	Correct	21 ms	6128 KB	Output is correct
3	Correct	21 ms	6128 KB	Output is correct
4	Correct	20 ms	6148 KB	Output is correct
5	Correct	20 ms	6076 KB	Output is correct
6	Correct	4 ms	2408 KB	Output is correct
7	Correct	19 ms	6080 KB	Output is correct
8	Correct	17 ms	6460 KB	Output is correct
9	Correct	17 ms	7480 KB	Output is correct
10	Correct	18 ms	7408 KB	Output is correct
11	Correct	16 ms	6076 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	204 KB	Output is correct
32	Correct	1 ms	316 KB	Output is correct
33	Correct	1 ms	204 KB	Output is correct
34	Correct	1 ms	204 KB	Output is correct
35	Correct	1 ms	204 KB	Output is correct
36	Correct	1 ms	204 KB	Output is correct
37	Correct	1 ms	204 KB	Output is correct
38	Correct	1 ms	312 KB	Output is correct
39	Correct	1 ms	204 KB	Output is correct
40	Incorrect	1 ms	204 KB	Output isn't correct
41	Halted	0 ms	0 KB	-