oj.uz

Submission #968746

# Submission time Handle Problem Language Result Execution time Memory
968746 2024-04-24T01:25:50 Z youssef_3breheem Three Friends (BOI14_friends) C++17
100 / 100
 9 ms 9312 KB 
#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define all(x) x.begin(), x.end()
#define endl '\n'
const int N=200005;
const int INF=1e9;
string cmp(string a,string b){
    if(a.size()>b.size())swap(a,b);
    int bad=0;
    int j=0;
    int n=a.size();
    for(int i=0;i<n;i++){
        while(j<b.size()&&a[i]!=b[j]){
            bad++;
            j++;
        }
        j++;
    }
    return (bad<=1?a:"");
}
int32_t main() {
    LCBorz;
    int n;cin>>n;
    string s;cin>>s;
    string a=cmp(s.substr(0,n/2),s.substr(n/2,n-n/2));
    string b=cmp(s.substr(0,n/2+1),s.substr(n/2+1,n-n/2));
    if(n%2==0||(a.size()==0&&b.size()==0)){
        cout<<"NOT POSSIBLE"<<endl;
        return 0;
    }
    if(a.size()!=0&&b.size()!=0&&a!=b){
        cout<<"NOT UNIQUE"<<endl;
        return 0;
    }
    cout<<(a.size()?a:b)<<endl;
 
 
    return 0;
}

Compilation message

friends.cpp: In function 'std::string cmp(std::string, std::string)':
friends.cpp:14:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |         while(j<b.size()&&a[i]!=b[j]){
      |               ~^~~~~~~~~

Subtask #1
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 600 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 344 KB Output is correct
9 Correct 0 ms 348 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 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 460 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 600 KB Output is correct
24 Correct 0 ms 452 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 600 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 456 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 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 460 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 388 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 460 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 2 ms 520 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 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 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 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 456 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 6368 KB Output is correct
2 Correct 9 ms 8156 KB Output is correct
3 Correct 8 ms 8160 KB Output is correct
4 Correct 8 ms 8096 KB Output is correct
5 Correct 9 ms 8152 KB Output is correct
6 Correct 7 ms 8188 KB Output is correct
7 Correct 8 ms 9312 KB Output is correct
8 Correct 9 ms 7476 KB Output is correct
9 Correct 7 ms 7424 KB Output is correct
10 Correct 7 ms 7420 KB Output is correct
11 Correct 5 ms 5632 KB Output is correct
12 Correct 0 ms 344 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 452 KB Output is correct
19 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 1 ms 452 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 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 1 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 0 ms 348 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 512 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 344 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 0 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 1 ms 348 KB Output is correct
51 Correct 0 ms 456 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 344 KB Output is correct