# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
105595 | 2019-04-13T17:59:52 Z | luciocf | Three Friends (BOI14_friends) | C++14 | 225 ms | 8224 KB |
#include <bits/stdc++.h> using namespace std; const int maxn = 2e6+10; int n, m; char S[maxn]; int last(string a, string b) { for (int i = 0; i < m; i++) if (a[i] != b[i]) return i; return -1; } bool solve1(void) { string a = "", b = ""; for (int i = 0; i <= m; i++) a += S[i]; for (int i = m+1; i < n; i++) b += S[i]; int pos = last(a, b); if (pos == -1) return 1; for (int i = pos+1; i <= m; i++) if (b[i-1] != a[i]) return 0; return 1; } bool solve2(void) { string a = "", b = ""; for (int i = 0; i < m; i++) b += S[i]; for (int i = m; i < n; i++) a += S[i]; int pos = last(a, b); if (pos == -1) return 1; for (int i = pos+1; i <= m; i++) if (b[i-1] != a[i]) return 0; return 1; } bool cmp(string a, string b) { for (int i = 0; i < a.size(); i++) if (a[i] != b[i]) return 0; return 1; } int main(void) { scanf("%d", &n); m = n/2; for (int i = 0; i < n; i++) scanf(" %c", &S[i]); if (n%2 == 0) { printf("NOT POSSIBLE\n"); return 0; } bool ok1 = solve1(); bool ok2 = solve2(); if (!ok1 && !ok2) printf("NOT POSSIBLE\n"); else if (ok1 && ok2) { string a = "", b = ""; for (int i = 0; i < m; i++) a += S[i]; for (int i = m+1; i < n; i++) b += S[i]; if (!cmp(a, b)) printf("NOT UNIQUE\n"); else cout << a << "\n"; } else if (ok1) { for (int i = m+1; i < n; i++) printf("%c", S[i]); printf("\n"); } else if (ok2) { for (int i = 0; i < m; i++) printf("%c", S[i]); printf("\n"); } }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 2 ms | 384 KB | Output is correct |
2 | Correct | 3 ms | 384 KB | Output is correct |
3 | Correct | 1 ms | 384 KB | Output is correct |
4 | Correct | 2 ms | 384 KB | Output is correct |
5 | Correct | 2 ms | 256 KB | Output is correct |
6 | Correct | 2 ms | 384 KB | Output is correct |
7 | Correct | 2 ms | 384 KB | Output is correct |
8 | Correct | 3 ms | 256 KB | Output is correct |
9 | Correct | 2 ms | 256 KB | Output is correct |
10 | Correct | 2 ms | 384 KB | Output is correct |
11 | Correct | 2 ms | 256 KB | Output is correct |
12 | Correct | 2 ms | 384 KB | Output is correct |
13 | Correct | 2 ms | 384 KB | Output is correct |
14 | Correct | 2 ms | 384 KB | Output is correct |
15 | Correct | 2 ms | 384 KB | Output is correct |
16 | Correct | 2 ms | 384 KB | Output is correct |
17 | Correct | 2 ms | 384 KB | Output is correct |
18 | Correct | 2 ms | 256 KB | Output is correct |
19 | Correct | 2 ms | 384 KB | Output is correct |
20 | Correct | 2 ms | 256 KB | Output is correct |
21 | Correct | 2 ms | 384 KB | Output is correct |
22 | Correct | 2 ms | 384 KB | Output is correct |
23 | Correct | 2 ms | 384 KB | Output is correct |
24 | Correct | 0 ms | 256 KB | Output is correct |
25 | Correct | 2 ms | 384 KB | Output is correct |
26 | Correct | 3 ms | 384 KB | Output is correct |
27 | Correct | 2 ms | 256 KB | Output is correct |
28 | Correct | 3 ms | 384 KB | Output is correct |
29 | Correct | 3 ms | 384 KB | Output is correct |
30 | Correct | 2 ms | 384 KB | Output is correct |
31 | Correct | 2 ms | 384 KB | Output is correct |
32 | Correct | 2 ms | 256 KB | Output is correct |
33 | Correct | 2 ms | 384 KB | Output is correct |
34 | Correct | 2 ms | 384 KB | Output is correct |
35 | Correct | 2 ms | 384 KB | Output is correct |
36 | Correct | 2 ms | 256 KB | Output is correct |
37 | Correct | 2 ms | 256 KB | Output is correct |
38 | Correct | 2 ms | 384 KB | Output is correct |
39 | Correct | 2 ms | 256 KB | Output is correct |
40 | Correct | 2 ms | 384 KB | Output is correct |
41 | Correct | 2 ms | 256 KB | Output is correct |
42 | Correct | 2 ms | 384 KB | Output is correct |
43 | Correct | 2 ms | 384 KB | Output is correct |
44 | Correct | 2 ms | 384 KB | Output is correct |
45 | Correct | 2 ms | 384 KB | Output is correct |
46 | Correct | 2 ms | 384 KB | Output is correct |
47 | Correct | 2 ms | 384 KB | Output is correct |
48 | Correct | 3 ms | 384 KB | Output is correct |
49 | Correct | 2 ms | 256 KB | Output is correct |
50 | Correct | 3 ms | 384 KB | Output is correct |
51 | Correct | 1 ms | 384 KB | Output is correct |
52 | Correct | 3 ms | 384 KB | Output is correct |
53 | Correct | 2 ms | 384 KB | Output is correct |
54 | Correct | 2 ms | 384 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 159 ms | 7168 KB | Output is correct |
2 | Correct | 185 ms | 7192 KB | Output is correct |
3 | Correct | 190 ms | 7192 KB | Output is correct |
4 | Correct | 225 ms | 7196 KB | Output is correct |
5 | Correct | 206 ms | 7228 KB | Output is correct |
6 | Correct | 112 ms | 2356 KB | Output is correct |
7 | Correct | 156 ms | 8224 KB | Output is correct |
8 | Correct | 131 ms | 5784 KB | Output is correct |
9 | Correct | 164 ms | 5744 KB | Output is correct |
10 | Correct | 165 ms | 7540 KB | Output is correct |
11 | Correct | 132 ms | 7084 KB | Output is correct |
12 | Correct | 2 ms | 256 KB | Output is correct |
13 | Correct | 2 ms | 384 KB | Output is correct |
14 | Correct | 2 ms | 384 KB | Output is correct |
15 | Correct | 2 ms | 256 KB | Output is correct |
16 | Correct | 2 ms | 256 KB | Output is correct |
17 | Correct | 3 ms | 384 KB | Output is correct |
18 | Correct | 3 ms | 384 KB | Output is correct |
19 | Correct | 3 ms | 384 KB | Output is correct |
20 | Correct | 3 ms | 384 KB | Output is correct |
21 | Correct | 2 ms | 256 KB | Output is correct |
22 | Correct | 3 ms | 384 KB | Output is correct |
23 | Correct | 2 ms | 384 KB | Output is correct |
24 | Correct | 2 ms | 384 KB | Output is correct |
25 | Correct | 2 ms | 256 KB | Output is correct |
26 | Correct | 2 ms | 256 KB | Output is correct |
27 | Correct | 2 ms | 256 KB | Output is correct |
28 | Correct | 2 ms | 256 KB | Output is correct |
29 | Correct | 2 ms | 384 KB | Output is correct |
30 | Correct | 2 ms | 256 KB | Output is correct |
31 | Correct | 0 ms | 256 KB | Output is correct |
32 | Correct | 2 ms | 256 KB | Output is correct |
33 | Correct | 3 ms | 384 KB | Output is correct |
34 | Correct | 3 ms | 256 KB | Output is correct |
35 | Correct | 2 ms | 256 KB | Output is correct |
36 | Correct | 2 ms | 384 KB | Output is correct |
37 | Correct | 2 ms | 256 KB | Output is correct |
38 | Correct | 2 ms | 256 KB | Output is correct |
39 | Correct | 3 ms | 256 KB | Output is correct |
40 | Correct | 3 ms | 256 KB | Output is correct |
41 | Correct | 3 ms | 384 KB | Output is correct |
42 | Correct | 2 ms | 256 KB | Output is correct |
43 | Correct | 1 ms | 384 KB | Output is correct |
44 | Correct | 2 ms | 256 KB | Output is correct |
45 | Correct | 3 ms | 256 KB | Output is correct |
46 | Correct | 2 ms | 256 KB | Output is correct |
47 | Correct | 2 ms | 256 KB | Output is correct |
48 | Correct | 3 ms | 384 KB | Output is correct |
49 | Correct | 2 ms | 384 KB | Output is correct |
50 | Correct | 3 ms | 384 KB | Output is correct |
51 | Correct | 2 ms | 384 KB | Output is correct |
52 | Correct | 2 ms | 384 KB | Output is correct |
53 | Correct | 2 ms | 384 KB | Output is correct |
54 | Correct | 2 ms | 384 KB | Output is correct |