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Submission #1090732

# Submission time Handle Problem Language Result Execution time Memory
1090732 2024-09-18T16:11:39 Z Evirir Lasers (NOI19_lasers) C++17
100 / 100
 402 ms 95132 KB 
#include <bits/stdc++.h>
using namespace std;

#define sz(x) (int)(x).size()
#define all(x) begin(x), end(x)
#define forn(i,a,b) for(int i=(a);i<(b);i++)
#define fore(i,a,b) for(int i=(a);i<=(b);i++)
#define pb push_back
#define F first
#define S second
using ll = long long;
using ld = long double;
using ii = pair<int, int>;

int main()
{
    cin.tie(0)->sync_with_stdio(0);

    int w,h; cin>>w>>h;
    vector<vector<int>> a(h);
    forn(i,0,h)
    {
        int n; cin>>n;
        a[i].reserve(n);
        forn(j,0,n)
        {
            int x; cin>>x;
            a[i].pb(x);
        }
    }

    vector<vector<ii>> rs(h);
    forn(rid,0,h)
    {
        auto& v = a[rid];
        auto& cr = rs[rid];
        ll sum = accumulate(all(v), 0);
        int l = 0, r = w - sum - 1;
        cr.pb({l, r});
        for (const auto x : v)
        {
            l += x;
            r += x;
            if (l <= cr.back().S + 1)
            {
                auto [l0, r0] = cr.back();
                cr.pop_back();
                cr.pb({l0, r});
            }
            else
            {
                cr.pb({l, r});
            }
        }
    }

    vector<ii> eve;
    set<int> ps;
    for (const auto& cr : rs)
    {
        for (const auto& [l, r] : cr)
        {
            eve.pb({l, 1});
            eve.pb({r + 1, -1});
            ps.insert(l);
            ps.insert(r + 1);
        }
    }

    sort(all(eve), greater<>());
    int last = -1;
    int cnt = 0;
    int ans = 0;
    for (const auto p : ps)
    {
        while (!eve.empty() && eve.back().F == p)
        {
            int t = eve.back().S;
            eve.pop_back();
            cnt += t;
        }
        if (cnt != h && last != -1)
        {
            ans += p - last;
            last = -1;
        }
        if (cnt == h)
            last = p;
    }
    cout << w - ans << '\n';

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 464 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 464 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 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 600 KB Output is correct
12 Correct 178 ms 76480 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 464 KB Output is correct
17 Correct 339 ms 91612 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 90 ms 20816 KB Output is correct
2 Correct 15 ms 3928 KB Output is correct
3 Correct 9 ms 2776 KB Output is correct
4 Correct 81 ms 22988 KB Output is correct
5 Correct 28 ms 9924 KB Output is correct
6 Correct 33 ms 8424 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 50 ms 9936 KB Output is correct
9 Correct 70 ms 18120 KB Output is correct
10 Correct 105 ms 25668 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 90 ms 20816 KB Output is correct
2 Correct 15 ms 3928 KB Output is correct
3 Correct 9 ms 2776 KB Output is correct
4 Correct 81 ms 22988 KB Output is correct
5 Correct 28 ms 9924 KB Output is correct
6 Correct 33 ms 8424 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 50 ms 9936 KB Output is correct
9 Correct 70 ms 18120 KB Output is correct
10 Correct 105 ms 25668 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 348 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 604 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 352 ms 88832 KB Output is correct
22 Correct 49 ms 8944 KB Output is correct
23 Correct 22 ms 6608 KB Output is correct
24 Correct 88 ms 21812 KB Output is correct
25 Correct 356 ms 88748 KB Output is correct
26 Correct 104 ms 18760 KB Output is correct
27 Correct 35 ms 7364 KB Output is correct
28 Correct 315 ms 88792 KB Output is correct
29 Correct 349 ms 89116 KB Output is correct
30 Correct 63 ms 15524 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 464 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 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 600 KB Output is correct
12 Correct 178 ms 76480 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 464 KB Output is correct
17 Correct 339 ms 91612 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 90 ms 20816 KB Output is correct
22 Correct 15 ms 3928 KB Output is correct
23 Correct 9 ms 2776 KB Output is correct
24 Correct 81 ms 22988 KB Output is correct
25 Correct 28 ms 9924 KB Output is correct
26 Correct 33 ms 8424 KB Output is correct
27 Correct 1 ms 600 KB Output is correct
28 Correct 50 ms 9936 KB Output is correct
29 Correct 70 ms 18120 KB Output is correct
30 Correct 105 ms 25668 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 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 604 KB Output is correct
37 Correct 1 ms 600 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 352 ms 88832 KB Output is correct
42 Correct 49 ms 8944 KB Output is correct
43 Correct 22 ms 6608 KB Output is correct
44 Correct 88 ms 21812 KB Output is correct
45 Correct 356 ms 88748 KB Output is correct
46 Correct 104 ms 18760 KB Output is correct
47 Correct 35 ms 7364 KB Output is correct
48 Correct 315 ms 88792 KB Output is correct
49 Correct 349 ms 89116 KB Output is correct
50 Correct 63 ms 15524 KB Output is correct
51 Correct 32 ms 9300 KB Output is correct
52 Correct 359 ms 93688 KB Output is correct
53 Correct 371 ms 93884 KB Output is correct
54 Correct 60 ms 12128 KB Output is correct
55 Correct 191 ms 28912 KB Output is correct
56 Correct 94 ms 21948 KB Output is correct
57 Correct 115 ms 21644 KB Output is correct
58 Correct 402 ms 95132 KB Output is correct
59 Correct 82 ms 15944 KB Output is correct
60 Correct 106 ms 19388 KB Output is correct