oj.uz

Submission #743436

# Submission time Handle Problem Language Result Execution time Memory
743436 2023-05-17T11:40:30 Z Dan4Life Three Friends (BOI14_friends) C++17
100 / 100
 22 ms 10540 KB 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
 
#define pb push_back
#define mp make_pair
#define fir first
#define sec second
#define all(a) a.begin(), a.end()
 
const int maxn = 200010;
const ll MOD = 1e9+7;
const int INF = 1e9;
const ll LINF = 1e18;
ll n, m, a[maxn];
map<int, int> M, N;
string s, ss;
set<int> S, SS;
 
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> s;
    if(n%2==0){ cout << "NOT POSSIBLE"; return 0; }
    string x = s.substr(0, n/2), y = s.substr(n/2+1, n/2);
    if(x==y){ cout << x; return 0; }
    string X = "", Y = "";
    int i = n/2, z= 0;
    for(i; i<n; i++) if(z<x.size() and x[z]==s[i])X+=s[i], z++;
    i=z=0;
    for(i; i <= n/2; i++) if(z<y.size() and y[z]==s[i])Y+=s[i],z++;
    if(X==x and Y==y) cout << "NOT UNIQUE";
    else if(X==x or Y==y)  cout << (X==x?x:y);
    else cout << "NOT POSSIBLE";
}

Compilation message

friends.cpp: In function 'int main()':
friends.cpp:30:9: warning: statement has no effect [-Wunused-value]
   30 |     for(i; i<n; i++) if(z<x.size() and x[z]==s[i])X+=s[i], z++;
      |         ^
friends.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(i; i<n; i++) if(z<x.size() and x[z]==s[i])X+=s[i], z++;
      |                         ~^~~~~~~~~
friends.cpp:32:9: warning: statement has no effect [-Wunused-value]
   32 |     for(i; i <= n/2; i++) if(z<y.size() and y[z]==s[i])Y+=s[i],z++;
      |         ^
friends.cpp:32:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(i; i <= n/2; i++) if(z<y.size() and y[z]==s[i])Y+=s[i],z++;
      |                              ~^~~~~~~~~

Subtask #1
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 328 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 328 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 264 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 328 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 10404 KB Output is correct
2 Correct 16 ms 10224 KB Output is correct
3 Correct 19 ms 10284 KB Output is correct
4 Correct 18 ms 10540 KB Output is correct
5 Correct 17 ms 10528 KB Output is correct
6 Correct 5 ms 4340 KB Output is correct
7 Correct 7 ms 7280 KB Output is correct
8 Correct 19 ms 8248 KB Output is correct
9 Correct 22 ms 9180 KB Output is correct
10 Correct 21 ms 9132 KB Output is correct
11 Correct 12 ms 6648 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 324 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 320 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 328 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 212 KB Output is correct