oj.uz

Submission #791346

# Submission time Handle Problem Language Result Execution time Memory
791346 2023-07-24T03:04:42 Z ilia_rr Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 753 ms 293336 KB 
// بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ
// Written by Ilia Rahbar

// #pragma GCC optimize ("O3,no-stack-protector,unroll-loops,fast-math")
// #pragma GCC target ("abm,bmi,bmi2,tbm,avx2")

#include <bits/stdc++.h>
using namespace std;

#define int int64_t
#define sz(x) int(x.size())
#define ai(x) array <int, x>
#define be(x) x.begin(), x.end()
#define pb push_back
#define el '\n'
#define sp ' '
#define fi first 
#define se second

const int M = 1e9 + 7, N = 1e6 + 100;

int n, m, q, u, ans, v, vs[N], t, sq = 100, dp[N];

bool av[N];

vector <int> g[N], in;

vector <ai(2)> f[N], uni;

void mrg(vector <ai(2)> &a, vector <ai(2)> &b)
{
    uni.clear();

    for (int p1 = 0, p2 = 0; p1 < sz(a) || p2 < sz(b); )
    {
        if (p1 < sz(a))
        {
            if (p2 < sz(b))
            {
                if (a[p1][0] > b[p2][0])
                    uni.pb(a[p1++]);

                else
                    uni.pb(b[p2++]);
            }

            else
                uni.pb(a[p1++]);
        }

        else
            uni.pb(b[p2++]);
    }

    b.clear();

    for (auto [x, y] : uni)
        if (!vs[y])
            vs[y] = 1, b.pb({x, y});

    for (auto [x, y] :  uni)
        vs[y] = 0;

    if (sz(b) > sq)
        b.resize(sq);
}   

int32_t main()
{
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    cin >> n >> m >> q;

    while (m--)
        cin >> u >> v, g[u].pb(v);

    for (int i = 1; i <= n; i++)
        f[i].pb({0, i});

    for (int i = 1; i <= n; i++)
    {
        for (int j = 0; j < sz(f[i]); j++)
            f[i][j][0]++;

        for (auto j : g[i])
            mrg(f[i], f[j]);

        for (int j = 0; j < sz(f[i]); j++)
            f[i][j][0]--;
    }

    while (q--)
    {
        cin >> u >> t;

        in.clear();
            
        ans = -1;

        for (int i = 0; i < t; i++)
            cin >> v, in.pb(v), av[v] = 1;

        for (auto [x, y] : f[u])
            if (!av[y])
            {
                ans = x;
                
                break;
            }

        if (t >= sq && ans == -1)
        {
            fill(dp, dp + u + 1, -M);

            for (int i = 1; i <= u; i++)
            {
                if (!av[i])
                    dp[i] = max(dp[i], int(0));

                for (auto j : g[i])
                    dp[j] = max(dp[j], dp[i] + 1);
            }
        
            ans = dp[u];
        }

        cout << (ans < 0 ? -1 : ans) << el;

        for (auto i : in)
            av[i] = 0;
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47188 KB Output is correct
2 Correct 20 ms 47276 KB Output is correct
3 Correct 20 ms 47196 KB Output is correct
4 Correct 23 ms 47252 KB Output is correct
5 Correct 22 ms 48212 KB Output is correct
6 Correct 22 ms 48240 KB Output is correct
7 Correct 22 ms 48200 KB Output is correct
8 Correct 26 ms 49216 KB Output is correct
9 Correct 24 ms 49236 KB Output is correct
10 Correct 26 ms 49308 KB Output is correct
11 Correct 23 ms 49236 KB Output is correct
12 Correct 24 ms 48848 KB Output is correct
13 Correct 24 ms 49196 KB Output is correct
14 Correct 23 ms 48536 KB Output is correct
15 Correct 23 ms 48468 KB Output is correct
16 Correct 24 ms 48596 KB Output is correct
17 Correct 22 ms 48852 KB Output is correct
18 Correct 27 ms 48456 KB Output is correct
19 Correct 23 ms 48816 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47188 KB Output is correct
2 Correct 20 ms 47276 KB Output is correct
3 Correct 20 ms 47196 KB Output is correct
4 Correct 23 ms 47252 KB Output is correct
5 Correct 22 ms 48212 KB Output is correct
6 Correct 22 ms 48240 KB Output is correct
7 Correct 22 ms 48200 KB Output is correct
8 Correct 26 ms 49216 KB Output is correct
9 Correct 24 ms 49236 KB Output is correct
10 Correct 26 ms 49308 KB Output is correct
11 Correct 23 ms 49236 KB Output is correct
12 Correct 24 ms 48848 KB Output is correct
13 Correct 24 ms 49196 KB Output is correct
14 Correct 23 ms 48536 KB Output is correct
15 Correct 23 ms 48468 KB Output is correct
16 Correct 24 ms 48596 KB Output is correct
17 Correct 22 ms 48852 KB Output is correct
18 Correct 27 ms 48456 KB Output is correct
19 Correct 23 ms 48816 KB Output is correct
20 Correct 303 ms 51764 KB Output is correct
21 Correct 297 ms 51812 KB Output is correct
22 Correct 299 ms 51664 KB Output is correct
23 Correct 350 ms 51700 KB Output is correct
24 Correct 490 ms 240188 KB Output is correct
25 Correct 486 ms 227060 KB Output is correct
26 Correct 490 ms 228036 KB Output is correct
27 Correct 524 ms 255084 KB Output is correct
28 Correct 520 ms 255148 KB Output is correct
29 Correct 507 ms 255900 KB Output is correct
30 Correct 485 ms 254380 KB Output is correct
31 Correct 508 ms 280508 KB Output is correct
32 Correct 510 ms 255044 KB Output is correct
33 Correct 387 ms 185560 KB Output is correct
34 Correct 392 ms 217524 KB Output is correct
35 Correct 373 ms 184972 KB Output is correct
36 Correct 451 ms 219136 KB Output is correct
37 Correct 452 ms 245708 KB Output is correct
38 Correct 443 ms 220204 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47188 KB Output is correct
2 Correct 20 ms 47276 KB Output is correct
3 Correct 20 ms 47196 KB Output is correct
4 Correct 23 ms 47252 KB Output is correct
5 Correct 22 ms 48212 KB Output is correct
6 Correct 22 ms 48240 KB Output is correct
7 Correct 22 ms 48200 KB Output is correct
8 Correct 26 ms 49216 KB Output is correct
9 Correct 24 ms 49236 KB Output is correct
10 Correct 26 ms 49308 KB Output is correct
11 Correct 23 ms 49236 KB Output is correct
12 Correct 24 ms 48848 KB Output is correct
13 Correct 24 ms 49196 KB Output is correct
14 Correct 23 ms 48536 KB Output is correct
15 Correct 23 ms 48468 KB Output is correct
16 Correct 24 ms 48596 KB Output is correct
17 Correct 22 ms 48852 KB Output is correct
18 Correct 27 ms 48456 KB Output is correct
19 Correct 23 ms 48816 KB Output is correct
20 Correct 303 ms 51764 KB Output is correct
21 Correct 297 ms 51812 KB Output is correct
22 Correct 299 ms 51664 KB Output is correct
23 Correct 350 ms 51700 KB Output is correct
24 Correct 490 ms 240188 KB Output is correct
25 Correct 486 ms 227060 KB Output is correct
26 Correct 490 ms 228036 KB Output is correct
27 Correct 524 ms 255084 KB Output is correct
28 Correct 520 ms 255148 KB Output is correct
29 Correct 507 ms 255900 KB Output is correct
30 Correct 485 ms 254380 KB Output is correct
31 Correct 508 ms 280508 KB Output is correct
32 Correct 510 ms 255044 KB Output is correct
33 Correct 387 ms 185560 KB Output is correct
34 Correct 392 ms 217524 KB Output is correct
35 Correct 373 ms 184972 KB Output is correct
36 Correct 451 ms 219136 KB Output is correct
37 Correct 452 ms 245708 KB Output is correct
38 Correct 443 ms 220204 KB Output is correct
39 Correct 511 ms 240248 KB Output is correct
40 Correct 492 ms 226376 KB Output is correct
41 Correct 495 ms 233672 KB Output is correct
42 Correct 483 ms 232284 KB Output is correct
43 Correct 499 ms 232752 KB Output is correct
44 Correct 315 ms 52344 KB Output is correct
45 Correct 304 ms 52036 KB Output is correct
46 Correct 306 ms 51952 KB Output is correct
47 Correct 301 ms 51916 KB Output is correct
48 Correct 298 ms 51920 KB Output is correct
49 Correct 562 ms 254996 KB Output is correct
50 Correct 745 ms 255200 KB Output is correct
51 Correct 318 ms 52292 KB Output is correct
52 Correct 364 ms 51944 KB Output is correct
53 Correct 501 ms 218252 KB Output is correct
54 Correct 491 ms 239372 KB Output is correct
55 Correct 535 ms 218828 KB Output is correct
56 Correct 468 ms 254184 KB Output is correct
57 Correct 317 ms 52232 KB Output is correct
58 Correct 325 ms 52308 KB Output is correct
59 Correct 378 ms 51956 KB Output is correct
60 Correct 372 ms 51936 KB Output is correct
61 Correct 556 ms 255188 KB Output is correct
62 Correct 522 ms 219572 KB Output is correct
63 Correct 480 ms 240520 KB Output is correct
64 Correct 646 ms 255176 KB Output is correct
65 Correct 584 ms 219108 KB Output is correct
66 Correct 451 ms 238300 KB Output is correct
67 Correct 753 ms 255176 KB Output is correct
68 Correct 650 ms 219580 KB Output is correct
69 Correct 479 ms 241516 KB Output is correct
70 Correct 509 ms 255300 KB Output is correct
71 Correct 449 ms 219480 KB Output is correct
72 Correct 462 ms 244312 KB Output is correct
73 Correct 520 ms 255284 KB Output is correct
74 Correct 455 ms 219340 KB Output is correct
75 Correct 500 ms 253600 KB Output is correct
76 Correct 557 ms 254976 KB Output is correct
77 Correct 485 ms 254412 KB Output is correct
78 Correct 491 ms 254896 KB Output is correct
79 Correct 326 ms 52336 KB Output is correct
80 Correct 302 ms 51916 KB Output is correct
81 Correct 301 ms 51952 KB Output is correct
82 Correct 553 ms 254316 KB Output is correct
83 Correct 557 ms 279696 KB Output is correct
84 Correct 498 ms 253720 KB Output is correct
85 Correct 515 ms 293336 KB Output is correct
86 Correct 498 ms 254168 KB Output is correct
87 Correct 545 ms 275020 KB Output is correct
88 Correct 330 ms 52304 KB Output is correct
89 Correct 321 ms 52308 KB Output is correct
90 Correct 303 ms 51916 KB Output is correct
91 Correct 299 ms 51876 KB Output is correct
92 Correct 296 ms 51912 KB Output is correct
93 Correct 297 ms 51916 KB Output is correct
94 Correct 417 ms 185828 KB Output is correct
95 Correct 431 ms 224784 KB Output is correct
96 Correct 376 ms 184728 KB Output is correct
97 Correct 403 ms 227792 KB Output is correct
98 Correct 426 ms 185840 KB Output is correct
99 Correct 412 ms 224116 KB Output is correct
100 Correct 376 ms 52076 KB Output is correct
101 Correct 377 ms 52188 KB Output is correct
102 Correct 352 ms 51776 KB Output is correct
103 Correct 365 ms 51796 KB Output is correct
104 Correct 353 ms 51788 KB Output is correct
105 Correct 359 ms 51764 KB Output is correct
106 Correct 493 ms 218592 KB Output is correct
107 Correct 525 ms 248952 KB Output is correct
108 Correct 463 ms 219124 KB Output is correct
109 Correct 455 ms 236632 KB Output is correct
110 Correct 473 ms 219604 KB Output is correct
111 Correct 450 ms 233416 KB Output is correct
112 Correct 326 ms 52332 KB Output is correct
113 Correct 320 ms 52300 KB Output is correct
114 Correct 306 ms 51784 KB Output is correct
115 Correct 310 ms 51928 KB Output is correct
116 Correct 299 ms 51932 KB Output is correct
117 Correct 307 ms 51840 KB Output is correct
118 Correct 532 ms 254352 KB Output is correct
119 Correct 529 ms 218784 KB Output is correct
120 Correct 482 ms 253380 KB Output is correct
121 Correct 535 ms 254420 KB Output is correct
122 Correct 504 ms 218316 KB Output is correct
123 Correct 462 ms 249240 KB Output is correct
124 Correct 530 ms 254204 KB Output is correct
125 Correct 479 ms 219124 KB Output is correct
126 Correct 467 ms 251024 KB Output is correct