제출 #1168490

#제출 시각아이디문제언어결과실행 시간메모리
1168490aren_danceThree Friends (BOI14_friends)C++20
100 / 100
65 ms11188 KiB
#include <iostream> #include <vector> using namespace std; const int N = 2e6+3; const int p1=31; const int p2 = 101; int n; vector<bool> vis1(26); vector<bool> vis2(26); string s; const int mod = 1e9 + 7; int main() { cin >> n; cin >> s; if (n % 2 == 1) { string w = ""; string e = ""; for (int i = 0;i<n/2;++i) { w += s[i]; } for (int i = n/2+1;i <n;++i) { e += s[i]; } string r = w + w; string l = e+e; bool fl1 = 0; bool fl2 = 0; int vl1 = 0; int vl2 = 0; for (int i = 0;i < n;++i) { if (r[vl1]==s[i]) { vl1++; } } if (vl1 == n-1) { fl1 = 1; } for (int i = 0;i < n;++i) { if (l[vl2] == s[i]) { vl2++; } } if (vl2 == n - 1) { fl2 = 1; } if (fl1 == 0 && fl2 == 0) { cout << "NOT POSSIBLE"; } else if (fl1 == 1 && fl2 == 1) { if (w == e) { cout << w; } else { cout << "NOT UNIQUE"; } } else { if (fl1 == 1) { cout << w; } else { cout << e; } } } else { cout << "NOT POSSIBLE"; } return 0; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...