oj.uz

Submission #95336

# Submission time Handle Problem Language Result Execution time Memory
95336 2019-01-30T10:18:00 Z dalgerok Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1837 ms 243936 KB 
#include<bits/stdc++.h>
using namespace std;




const int N = 1e5 + 5, S = 200;


int n, m, q;
vector < pair < int, int > > dp[N];
vector < int > g[N];
bool used[N];
int dpp[N], ans[N];


inline void mrg(int x, int y){
    for(auto it : dp[x]){
        ans[it.second] = it.first;
    }
    for(auto it : dp[y]){
        ans[it.second] = max(ans[it.second], it.first + 1);
    }
    for(auto &it : dp[x]){
        it.first = ans[it.second];
        ans[it.second] = 0;
    }
    for(auto it : dp[y]){
        if(ans[it.second]){
            dp[x].push_back(make_pair(it.first + 1, it.second));
            ans[it.second] = 0;
        }
    }
    sort(dp[x].rbegin(), dp[x].rend());
    while((int)dp[x].size() > S){
        dp[x].pop_back();
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> m >> q;
    for(int i = 1; i <= m; i++){
        int x, y;
        cin >> x >> y;
        g[y].push_back(x);
    }
    for(int i = 1; i <= n; i++){
        for(int j : g[i]){
            mrg(i, j);
        }
        if((int)dp[i].size() < S){
            dp[i].push_back(make_pair(0, i));
        }
    }
    while(q--){
        int v, x;
        cin >> v >> x;
        vector < int > y(x);
        for(int i = 0; i < x; i++){
            cin >> y[i];
            used[y[i]] = true;
        }
        if(x < S){
            for(auto it : dp[v]){
                if(!used[it.second]){
                    cout << it.first << "\n";
                    goto to;
                }
            }
            cout << "-1\n";
            to:;
        }
        else{
            for(int i = 1; i <= v; i++){
                dpp[i] = 0;
                if(used[i]){
                    dpp[i] = -1;
                }
                for(int j : g[i]){
                    if(dpp[j] != -1){
                        dpp[i] = max(dpp[i], dpp[j] + 1);
                    }
                }
            }
            cout << dpp[v] << "\n";
        }
        for(int i = 0; i < x; i++){
            used[y[i]] = false;
        }
        y.clear();
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4984 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 5 ms 5112 KB Output is correct
4 Correct 5 ms 4988 KB Output is correct
5 Correct 10 ms 5496 KB Output is correct
6 Correct 9 ms 5472 KB Output is correct
7 Correct 8 ms 5496 KB Output is correct
8 Correct 14 ms 6908 KB Output is correct
9 Correct 14 ms 6904 KB Output is correct
10 Correct 14 ms 7032 KB Output is correct
11 Correct 14 ms 6776 KB Output is correct
12 Correct 12 ms 6264 KB Output is correct
13 Correct 14 ms 6776 KB Output is correct
14 Correct 13 ms 6136 KB Output is correct
15 Correct 12 ms 5880 KB Output is correct
16 Correct 13 ms 6136 KB Output is correct
17 Correct 14 ms 6392 KB Output is correct
18 Correct 13 ms 5880 KB Output is correct
19 Correct 15 ms 6392 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4984 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 5 ms 5112 KB Output is correct
4 Correct 5 ms 4988 KB Output is correct
5 Correct 10 ms 5496 KB Output is correct
6 Correct 9 ms 5472 KB Output is correct
7 Correct 8 ms 5496 KB Output is correct
8 Correct 14 ms 6908 KB Output is correct
9 Correct 14 ms 6904 KB Output is correct
10 Correct 14 ms 7032 KB Output is correct
11 Correct 14 ms 6776 KB Output is correct
12 Correct 12 ms 6264 KB Output is correct
13 Correct 14 ms 6776 KB Output is correct
14 Correct 13 ms 6136 KB Output is correct
15 Correct 12 ms 5880 KB Output is correct
16 Correct 13 ms 6136 KB Output is correct
17 Correct 14 ms 6392 KB Output is correct
18 Correct 13 ms 5880 KB Output is correct
19 Correct 15 ms 6392 KB Output is correct
20 Correct 525 ms 8356 KB Output is correct
21 Correct 524 ms 8568 KB Output is correct
22 Correct 522 ms 8440 KB Output is correct
23 Correct 536 ms 8484 KB Output is correct
24 Correct 1495 ms 187092 KB Output is correct
25 Correct 1604 ms 181628 KB Output is correct
26 Correct 1652 ms 183064 KB Output is correct
27 Correct 1018 ms 213052 KB Output is correct
28 Correct 1000 ms 213128 KB Output is correct
29 Correct 1022 ms 213012 KB Output is correct
30 Correct 1050 ms 212740 KB Output is correct
31 Correct 1463 ms 231836 KB Output is correct
32 Correct 1109 ms 212892 KB Output is correct
33 Correct 990 ms 136312 KB Output is correct
34 Correct 1291 ms 160444 KB Output is correct
35 Correct 982 ms 135436 KB Output is correct
36 Correct 1047 ms 174736 KB Output is correct
37 Correct 1579 ms 196808 KB Output is correct
38 Correct 1060 ms 174840 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4984 KB Output is correct
2 Correct 5 ms 4984 KB Output is correct
3 Correct 5 ms 5112 KB Output is correct
4 Correct 5 ms 4988 KB Output is correct
5 Correct 10 ms 5496 KB Output is correct
6 Correct 9 ms 5472 KB Output is correct
7 Correct 8 ms 5496 KB Output is correct
8 Correct 14 ms 6908 KB Output is correct
9 Correct 14 ms 6904 KB Output is correct
10 Correct 14 ms 7032 KB Output is correct
11 Correct 14 ms 6776 KB Output is correct
12 Correct 12 ms 6264 KB Output is correct
13 Correct 14 ms 6776 KB Output is correct
14 Correct 13 ms 6136 KB Output is correct
15 Correct 12 ms 5880 KB Output is correct
16 Correct 13 ms 6136 KB Output is correct
17 Correct 14 ms 6392 KB Output is correct
18 Correct 13 ms 5880 KB Output is correct
19 Correct 15 ms 6392 KB Output is correct
20 Correct 525 ms 8356 KB Output is correct
21 Correct 524 ms 8568 KB Output is correct
22 Correct 522 ms 8440 KB Output is correct
23 Correct 536 ms 8484 KB Output is correct
24 Correct 1495 ms 187092 KB Output is correct
25 Correct 1604 ms 181628 KB Output is correct
26 Correct 1652 ms 183064 KB Output is correct
27 Correct 1018 ms 213052 KB Output is correct
28 Correct 1000 ms 213128 KB Output is correct
29 Correct 1022 ms 213012 KB Output is correct
30 Correct 1050 ms 212740 KB Output is correct
31 Correct 1463 ms 231836 KB Output is correct
32 Correct 1109 ms 212892 KB Output is correct
33 Correct 990 ms 136312 KB Output is correct
34 Correct 1291 ms 160444 KB Output is correct
35 Correct 982 ms 135436 KB Output is correct
36 Correct 1047 ms 174736 KB Output is correct
37 Correct 1579 ms 196808 KB Output is correct
38 Correct 1060 ms 174840 KB Output is correct
39 Correct 1699 ms 192560 KB Output is correct
40 Correct 1665 ms 183036 KB Output is correct
41 Correct 1696 ms 185892 KB Output is correct
42 Correct 1718 ms 186944 KB Output is correct
43 Correct 1624 ms 192680 KB Output is correct
44 Correct 557 ms 10924 KB Output is correct
45 Correct 550 ms 9980 KB Output is correct
46 Correct 526 ms 9988 KB Output is correct
47 Correct 695 ms 9800 KB Output is correct
48 Correct 638 ms 9720 KB Output is correct
49 Correct 1232 ms 213932 KB Output is correct
50 Correct 1055 ms 212612 KB Output is correct
51 Correct 617 ms 10752 KB Output is correct
52 Correct 529 ms 9776 KB Output is correct
53 Correct 1136 ms 174840 KB Output is correct
54 Correct 1548 ms 200184 KB Output is correct
55 Correct 1096 ms 173608 KB Output is correct
56 Correct 1657 ms 212488 KB Output is correct
57 Correct 568 ms 10672 KB Output is correct
58 Correct 566 ms 10680 KB Output is correct
59 Correct 534 ms 9836 KB Output is correct
60 Correct 541 ms 9820 KB Output is correct
61 Correct 1169 ms 213144 KB Output is correct
62 Correct 1157 ms 174804 KB Output is correct
63 Correct 1714 ms 196296 KB Output is correct
64 Correct 1335 ms 212984 KB Output is correct
65 Correct 1348 ms 174332 KB Output is correct
66 Correct 1837 ms 207196 KB Output is correct
67 Correct 1347 ms 213112 KB Output is correct
68 Correct 1256 ms 174952 KB Output is correct
69 Correct 1687 ms 202288 KB Output is correct
70 Correct 1113 ms 213240 KB Output is correct
71 Correct 1140 ms 174712 KB Output is correct
72 Correct 1510 ms 200228 KB Output is correct
73 Correct 1167 ms 213152 KB Output is correct
74 Correct 1124 ms 174712 KB Output is correct
75 Correct 1485 ms 201792 KB Output is correct
76 Correct 1117 ms 214468 KB Output is correct
77 Correct 1097 ms 213384 KB Output is correct
78 Correct 1040 ms 213476 KB Output is correct
79 Correct 547 ms 10868 KB Output is correct
80 Correct 533 ms 9848 KB Output is correct
81 Correct 535 ms 9484 KB Output is correct
82 Correct 1233 ms 214136 KB Output is correct
83 Correct 1661 ms 236468 KB Output is correct
84 Correct 1185 ms 213236 KB Output is correct
85 Correct 1664 ms 242948 KB Output is correct
86 Correct 1182 ms 213216 KB Output is correct
87 Correct 1607 ms 243936 KB Output is correct
88 Correct 563 ms 10936 KB Output is correct
89 Correct 576 ms 10872 KB Output is correct
90 Correct 554 ms 10068 KB Output is correct
91 Correct 538 ms 9984 KB Output is correct
92 Correct 525 ms 9460 KB Output is correct
93 Correct 531 ms 9724 KB Output is correct
94 Correct 1067 ms 137732 KB Output is correct
95 Correct 1438 ms 166672 KB Output is correct
96 Correct 1029 ms 136252 KB Output is correct
97 Correct 1385 ms 169080 KB Output is correct
98 Correct 1016 ms 136716 KB Output is correct
99 Correct 1339 ms 166264 KB Output is correct
100 Correct 577 ms 11000 KB Output is correct
101 Correct 577 ms 10924 KB Output is correct
102 Correct 555 ms 9976 KB Output is correct
103 Correct 568 ms 9976 KB Output is correct
104 Correct 545 ms 9520 KB Output is correct
105 Correct 555 ms 9592 KB Output is correct
106 Correct 1160 ms 175152 KB Output is correct
107 Correct 1634 ms 203820 KB Output is correct
108 Correct 1159 ms 175340 KB Output is correct
109 Correct 1539 ms 200464 KB Output is correct
110 Correct 1142 ms 175608 KB Output is correct
111 Correct 1643 ms 197416 KB Output is correct
112 Correct 557 ms 11036 KB Output is correct
113 Correct 564 ms 10900 KB Output is correct
114 Correct 535 ms 10112 KB Output is correct
115 Correct 555 ms 9976 KB Output is correct
116 Correct 522 ms 9536 KB Output is correct
117 Correct 518 ms 9592 KB Output is correct
118 Correct 1152 ms 212736 KB Output is correct
119 Correct 1130 ms 174584 KB Output is correct
120 Correct 1578 ms 196288 KB Output is correct
121 Correct 1153 ms 212768 KB Output is correct
122 Correct 1105 ms 174060 KB Output is correct
123 Correct 1478 ms 206036 KB Output is correct
124 Correct 1039 ms 212680 KB Output is correct
125 Correct 1178 ms 174936 KB Output is correct
126 Correct 1594 ms 199672 KB Output is correct