제출 #657149

#제출 시각아이디문제언어결과실행 시간메모리
657149Juan세 명의 친구들 (BOI14_friends)C++17
35 / 100
1 ms340 KiB
#include<bits/stdc++.h> using namespace std; const int maxn = 2e3 + 5; char v[maxn]; int main(){ int n; cin >> n; for(int i = 0; i < n; i++) cin >> v[i]; int ok = 0; string ans = "", left="", right=""; for(int i = 0; i < n/2; i++) left+=v[i]; for(int i = n/2; i < n-1; i++) right+=v[i]; if(left==right) ok++, ans = right; for(int i = n-2; i >= n/2; i--){ right[i-n/2] = v[i+1]; if(right==left){ ok++; if(ok>=2 && right!=ans) {cout << "NOT UNIQUE\n"; return 0;} ans=right; } } for(int i = n/2-1; i >= 0; i--){ left[i] = v[i+1]; if(right==left){ ok++; if(ok>=2 && left!=ans) {cout << "NOT UNIQUE\n"; return 0;} ans=left; } } if(ok==0) cout << "NOT POSSIBLE\n"; else cout << ans << '\n'; } // #include<bits/stdc++.h> // using namespace std; // int main(){ // int n, k; cin >> n >> k; // for(int i = 0; i < n; i++) cin >> v[i]; // for(int i = n-1; i >= 0; i--){ // if(v[i]=="I") cnt++; // if(cnt>=k) // } // }
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