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Submission #1015526

# Submission time Handle Problem Language Result Execution time Memory
1015526 2024-07-06T13:16:06 Z Hanksburger Martian DNA (BOI18_dna) C++17
100 / 100
 76 ms 19928 KB 
#include <bits/stdc++.h>
using namespace std;
int a[200005], b[200005], c[200005];
vector<int> v[200005];
set<int> s;
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, k, r, mn;
    cin >> n >> k >> r;
    for (int i=1; i<=n; i++)
    {
        cin >> a[i];
        v[a[i]].push_back(i);
    }
    for (int i=1; i<=r; i++)
    {
        int x, y;
        cin >> x >> y;
        b[x]=y;
    }
    for (int i=0; i<k; i++)
    {
        if (v[i].size()<b[i])
        {
            cout << "impossible";
            return 0;
        }
        if (b[i])
            s.insert(v[i][b[i]-1]);
    }
    mn=*s.rbegin();
    for (int i=1; i<=n; i++)
    {
        if (b[a[i]])
        {
            s.erase(v[a[i]][c[a[i]]+b[a[i]]-1]);
            if (v[a[i]].size()<=c[a[i]]+b[a[i]])
                break;
            s.insert(v[a[i]][c[a[i]]+b[a[i]]]);
            c[a[i]]++;
        }
        mn=min(mn, *s.rbegin()-i);
    }
    cout << mn;
}

Compilation message

dna.cpp: In function 'int main()':
dna.cpp:26:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |         if (v[i].size()<b[i])
      |             ~~~~~~~~~~~^~~~~
dna.cpp:40:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |             if (v[a[i]].size()<=c[a[i]]+b[a[i]])
      |                 ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 5000 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5212 KB Output is correct
3 Correct 2 ms 5284 KB Output is correct
4 Correct 3 ms 5212 KB Output is correct
5 Correct 3 ms 5208 KB Output is correct
6 Correct 3 ms 5180 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4956 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 3 ms 4956 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 7512 KB Output is correct
2 Correct 13 ms 7444 KB Output is correct
3 Correct 16 ms 7260 KB Output is correct
4 Correct 14 ms 7516 KB Output is correct
5 Correct 22 ms 9808 KB Output is correct
6 Correct 9 ms 7516 KB Output is correct
7 Correct 11 ms 7444 KB Output is correct
8 Correct 33 ms 13356 KB Output is correct
9 Correct 18 ms 8280 KB Output is correct
10 Correct 17 ms 7416 KB Output is correct
11 Correct 2 ms 5212 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 2 ms 5212 KB Output is correct
14 Correct 2 ms 5348 KB Output is correct
15 Correct 3 ms 5212 KB Output is correct
16 Correct 2 ms 5212 KB Output is correct
17 Correct 2 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 2 ms 5164 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4956 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 14544 KB Output is correct
2 Correct 57 ms 12628 KB Output is correct
3 Correct 31 ms 10584 KB Output is correct
4 Correct 14 ms 7160 KB Output is correct
5 Correct 31 ms 11492 KB Output is correct
6 Correct 76 ms 19928 KB Output is correct
7 Correct 20 ms 8536 KB Output is correct
8 Correct 47 ms 9308 KB Output is correct
9 Correct 13 ms 7516 KB Output is correct
10 Correct 13 ms 7408 KB Output is correct
11 Correct 18 ms 7168 KB Output is correct
12 Correct 14 ms 7516 KB Output is correct
13 Correct 22 ms 9768 KB Output is correct
14 Correct 10 ms 7480 KB Output is correct
15 Correct 10 ms 7516 KB Output is correct
16 Correct 31 ms 13316 KB Output is correct
17 Correct 19 ms 8284 KB Output is correct
18 Correct 18 ms 7416 KB Output is correct
19 Correct 3 ms 5212 KB Output is correct
20 Correct 2 ms 5212 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 2 ms 5172 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 4952 KB Output is correct
26 Correct 2 ms 4956 KB Output is correct
27 Correct 2 ms 4956 KB Output is correct
28 Correct 3 ms 4956 KB Output is correct
29 Correct 2 ms 4956 KB Output is correct
30 Correct 2 ms 4956 KB Output is correct
31 Correct 3 ms 4956 KB Output is correct
32 Correct 2 ms 4956 KB Output is correct
33 Correct 3 ms 4956 KB Output is correct