Submission #105596

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
105596	2019-04-13T18:00:33 Z	Leonardo_Paes	Three Friends (BOI14_friends)	C++11	35 / 100	500 ms	6380 KB

friends

#include <bits/stdc++.h>
 
using namespace std;
 
int mark[27];
 
int main(){
 
  map<string, int> m;
 
	int n;
 
	cin >> n;
 
 
		string t;
 
		cin >> t;
 
		for(int i=0; i<n; i++){
			mark[t[i]-'A']++;
		}
 
  	if(n%2==0){
		cout << "NOT POSSIBLE" << endl;
    return 0;
	}
 
		int x=-1;
 
    bool resp=true;
 
		for(int i=0; i<=26; i++){
			if(mark[i]%2==1){
        if(x!=-1)resp=false;
				x=i;
			}
		}
    if(resp==false){
      cout << "NOT POSSIBLE" << endl;
      return 0;
    }
    string y="-1";
    string p;
    int w=0;
    for(int i=0; i<n; i++){
 
      if(t[i]-'A'==x){
              int u=0;
      string h;
        for(int j=0; j<n; j++){
          if(i!=j){
            h+=t[j];
            u++;
          }
          if(u==(n-1)/2){
            u=j;
            break;
          }
        }
        string q;
    
      for(int e=u+1; e<n; e++){
        if(e!=i)q+=t[e];
      }
      if(q==h and m.find(q)==m.end()){
        if(y!="-1" and y!=q){
          p="NOT UNIQUE\n";
        }
        y=q;
        m[q]=2;
      }
      }
    }
    if(p=="NOT UNIQUE\n"){
      cout << p;
    }
    else if(resp==false){
      cout << "NOT POSSIBLE\n";
    }
   
    else{
      if(y=="-1"){
        cout << "NOT POSSIBLE\n";
        return 0;
      }
      cout << y << endl;
    }
	
 
}

Compilation message

friends.cpp: In function 'int main()':
friends.cpp:45:9: warning: unused variable 'w' [-Wunused-variable]
     int w=0;
         ^

Subtask #1

35.0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	256 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	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	3 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	3 ms	384 KB	Output is correct
16	Correct	3 ms	512 KB	Output is correct
17	Correct	2 ms	256 KB	Output is correct
18	Correct	2 ms	256 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 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	256 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	2 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	2 ms	512 KB	Output is correct
29	Correct	2 ms	256 KB	Output is correct
30	Correct	3 ms	384 KB	Output is correct
31	Correct	2 ms	256 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	256 KB	Output is correct
35	Correct	2 ms	384 KB	Output is correct
36	Correct	2 ms	384 KB	Output is correct
37	Correct	3 ms	256 KB	Output is correct
38	Correct	2 ms	384 KB	Output is correct
39	Correct	3 ms	384 KB	Output is correct
40	Correct	3 ms	384 KB	Output is correct
41	Correct	2 ms	384 KB	Output is correct
42	Correct	2 ms	256 KB	Output is correct
43	Correct	2 ms	384 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	3 ms	256 KB	Output is correct
46	Correct	3 ms	256 KB	Output is correct
47	Correct	4 ms	384 KB	Output is correct
48	Correct	3 ms	384 KB	Output is correct
49	Correct	2 ms	384 KB	Output is correct
50	Correct	32 ms	376 KB	Output is correct
51	Correct	10 ms	384 KB	Output is correct
52	Correct	10 ms	384 KB	Output is correct
53	Correct	8 ms	256 KB	Output is correct
54	Correct	7 ms	404 KB	Output is correct

Subtask #2

0 / 65.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1072 ms	6380 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-