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Submission #768046

# Submission time Handle Problem Language Result Execution time Memory
768046 2023-06-27T11:44:20 Z raysh07 Martian DNA (BOI18_dna) C++17
100 / 100
 151 ms 140036 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF (int)1e18
#define f first
#define s second

mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

int n, k, r;
const int N = 2e5 + 69;
int a[N], need[N];
deque <int> pos[N];

void Solve() 
{
    cin >> n >> k >> r;
    for (int i = 1; i <= n; i++) cin >> a[i], pos[a[i]].push_back(i);
    
    while(r--){
        int x, y; cin >> x >> y;
        need[x] = y;
        if (y > pos[x].size()){
            cout << "impossible\n";
            return;
        }
    }
    
    int ans = n;
    int mx = -1;
    for (int i = 0; i < k; i++){
        if (need[i] != 0){
            mx = max(mx, pos[i][need[i] - 1]);
        }
    }
    
    for (int i = 1; i <= n; i++){
        ans = min(ans, mx - i + 1);
        pos[a[i]].pop_front();
        if (pos[a[i]].size() < need[a[i]]) break;
        if (need[a[i]] != 0) mx = max(mx, pos[a[i]][need[a[i]] - 1]);
    }
    
    cout << ans << "\n";
}

int32_t main() 
{
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
//    cin >> t;
    for(int i = 1; i <= t; i++) 
    {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n"; 
    return 0;
}

Compilation message

dna.cpp: In function 'void Solve()':
dna.cpp:23:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::deque<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |         if (y > pos[x].size()){
      |             ~~^~~~~~~~~~~~~~~
dna.cpp:40:30: warning: comparison of integer expressions of different signedness: 'std::deque<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   40 |         if (pos[a[i]].size() < need[a[i]]) break;
      |             ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 134996 KB Output is correct
2 Correct 64 ms 134984 KB Output is correct
3 Correct 63 ms 134920 KB Output is correct
4 Correct 62 ms 134912 KB Output is correct
5 Correct 64 ms 134972 KB Output is correct
6 Correct 64 ms 134896 KB Output is correct
7 Correct 64 ms 134996 KB Output is correct
8 Correct 63 ms 134892 KB Output is correct
9 Correct 64 ms 135004 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 135064 KB Output is correct
2 Correct 74 ms 135064 KB Output is correct
3 Correct 66 ms 134988 KB Output is correct
4 Correct 66 ms 135020 KB Output is correct
5 Correct 68 ms 134980 KB Output is correct
6 Correct 80 ms 135036 KB Output is correct
7 Correct 68 ms 134964 KB Output is correct
8 Correct 65 ms 134964 KB Output is correct
9 Correct 67 ms 134992 KB Output is correct
10 Correct 65 ms 134984 KB Output is correct
11 Correct 65 ms 134968 KB Output is correct
12 Correct 65 ms 134924 KB Output is correct
13 Correct 67 ms 135024 KB Output is correct
14 Correct 66 ms 134992 KB Output is correct
15 Correct 66 ms 135008 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 138640 KB Output is correct
2 Correct 111 ms 138620 KB Output is correct
3 Correct 84 ms 138616 KB Output is correct
4 Correct 81 ms 138572 KB Output is correct
5 Correct 114 ms 137928 KB Output is correct
6 Correct 82 ms 138640 KB Output is correct
7 Correct 82 ms 138796 KB Output is correct
8 Correct 132 ms 137748 KB Output is correct
9 Correct 83 ms 137460 KB Output is correct
10 Correct 84 ms 138572 KB Output is correct
11 Correct 74 ms 134992 KB Output is correct
12 Correct 84 ms 134964 KB Output is correct
13 Correct 68 ms 135016 KB Output is correct
14 Correct 68 ms 135008 KB Output is correct
15 Correct 65 ms 134952 KB Output is correct
16 Correct 76 ms 135048 KB Output is correct
17 Correct 65 ms 134920 KB Output is correct
18 Correct 65 ms 134992 KB Output is correct
19 Correct 66 ms 134908 KB Output is correct
20 Correct 66 ms 134916 KB Output is correct
21 Correct 75 ms 134988 KB Output is correct
22 Correct 65 ms 134988 KB Output is correct
23 Correct 65 ms 134988 KB Output is correct
24 Correct 64 ms 134988 KB Output is correct
25 Correct 71 ms 134936 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 138856 KB Output is correct
2 Correct 120 ms 138796 KB Output is correct
3 Correct 118 ms 138444 KB Output is correct
4 Correct 83 ms 138572 KB Output is correct
5 Correct 109 ms 137856 KB Output is correct
6 Correct 151 ms 140036 KB Output is correct
7 Correct 80 ms 137548 KB Output is correct
8 Correct 96 ms 137984 KB Output is correct
9 Correct 95 ms 138708 KB Output is correct
10 Correct 84 ms 138612 KB Output is correct
11 Correct 83 ms 138660 KB Output is correct
12 Correct 83 ms 138556 KB Output is correct
13 Correct 116 ms 137880 KB Output is correct
14 Correct 88 ms 138676 KB Output is correct
15 Correct 83 ms 138760 KB Output is correct
16 Correct 134 ms 137800 KB Output is correct
17 Correct 82 ms 137536 KB Output is correct
18 Correct 96 ms 138640 KB Output is correct
19 Correct 73 ms 135000 KB Output is correct
20 Correct 72 ms 135044 KB Output is correct
21 Correct 85 ms 135060 KB Output is correct
22 Correct 67 ms 135008 KB Output is correct
23 Correct 68 ms 135012 KB Output is correct
24 Correct 74 ms 134980 KB Output is correct
25 Correct 77 ms 134960 KB Output is correct
26 Correct 79 ms 134976 KB Output is correct
27 Correct 67 ms 134996 KB Output is correct
28 Correct 71 ms 134928 KB Output is correct
29 Correct 67 ms 134956 KB Output is correct
30 Correct 66 ms 134964 KB Output is correct
31 Correct 66 ms 134892 KB Output is correct
32 Correct 67 ms 134960 KB Output is correct
33 Correct 68 ms 134992 KB Output is correct