Submission #930637

# Submission time Handle Problem Language Result Execution time Memory
930637 2024-02-20T08:38:35 Z zyq181 Three Friends (BOI14_friends) C++17
100 / 100
39 ms 4764 KB
#include <bits/stdc++.h>
using namespace std;

int N;
char c;
char ok[2000010];
int pt;
bool ans1, ans2;

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N;
	if(!(N%2)){
		cout << "NOT POSSIBLE";
		return 0;
	}
	int k = N/2;
	for(int a=1; a<=N; a++){
		cin >> ok[a];
	}
	ans1 = ans2 = true;
	pt = k+1;
	for(int a=1; a<=k; a++){
		while(pt != N+1 && ok[pt] != ok[a]) {
			pt++;
		}
		if(pt == N+1){
			ans1 = false;
			break;
		}
		pt++;
	}
	pt = 1;
	for(int a=k+2; a<=N; a++){
		while(pt != k+2 && ok[pt] != ok[a]) {
			pt++;
		}
		if(pt == k+2){
			ans2 = false;
			break;
		}
		pt++;
	}
	if(ans1 && ans2){
		for(int a=1; a<=k; a++){
			if(ok[a] != ok[a+k+1]){
				cout << "NOT UNIQUE";
				return 0;
			}
		}
		for(int a=1; a<=k; a++){
			cout << ok[a];
		}
	}
	else if(ans1){
		for(int a=1; a<=k; a++){
			cout << ok[a];
		}
	}
	else if(ans2){
		for(int a=k+2; a<=N; a++){
			cout << ok[a];
		}
	}
	else{
		cout << "NOT POSSIBLE";
	}
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 600 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 600 KB Output is correct
53 Correct 0 ms 464 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 39 ms 3152 KB Output is correct
2 Correct 36 ms 3152 KB Output is correct
3 Correct 36 ms 3368 KB Output is correct
4 Correct 37 ms 3508 KB Output is correct
5 Correct 36 ms 3304 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 36 ms 3324 KB Output is correct
8 Correct 18 ms 3876 KB Output is correct
9 Correct 33 ms 4728 KB Output is correct
10 Correct 33 ms 4764 KB Output is correct
11 Correct 19 ms 3740 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 600 KB Output is correct
33 Correct 0 ms 464 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 0 ms 600 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct