oj.uz

Submission #717240

# Submission time Handle Problem Language Result Execution time Memory
717240 2023-04-01T16:28:12 Z Jarif_Rahman Toy Train (IOI17_train) C++17
100 / 100
 834 ms 1968 KB 
#include "train.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

int n, m;
vector<vector<int>> graph, graphr;
vector<bool> active;
vector<int> A;

template<int P>
vector<bool> reachable_from(vector<int> S){
    vector<bool> bl(n, 0);
    vector<int> cnt(n, 0);
    for(int i = 0; i < n; i++) if(active[i]) for(int x: graph[i]) cnt[i]+=active[x];

    function<void(int)> dfs = [&](int nd){
        if(!active[nd]) return;
        if(A[nd] != P){
            cnt[nd]--;
            if(cnt[nd] > 0) return;
        }
        if(bl[nd]) return;
        bl[nd] = 1;
        for(int x: graphr[nd]) dfs(x);
    };
    for(int x: S){
        cnt[x] = 0;
        dfs(x);
    }

    return bl;
}

vector<int> who_wins(vector<int> _A, vector<int> R, vector<int> U, vector<int> V){
    swap(A, _A);
    n = A.size(), m = U.size();
    graph.resize(n), graphr.resize(n);
    active.assign(n, 1);
    for(int i = 0; i < m; i++) graph[U[i]].pb(V[i]), graphr[V[i]].pb(U[i]);

    vector<int> ans(n, 1);

    while(1){
        vector<int> S;
        for(int i = 0; i < n; i++) if(active[i] && R[i]) S.pb(i);
        auto bl = reachable_from<1>(S);
        S.clear();
        for(int i = 0; i < n; i++) if(active[i] && !bl[i]) S.pb(i);
        if(S.empty()) break;
        bl = reachable_from<0>(S);
        for(int i = 0; i < n; i++) if(bl[i]) active[i] = 0, ans[i] = 0;
    }

    return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1108 KB Output is correct
2 Correct 7 ms 1108 KB Output is correct
3 Correct 6 ms 1108 KB Output is correct
4 Correct 5 ms 1080 KB Output is correct
5 Correct 6 ms 1076 KB Output is correct
6 Correct 5 ms 1188 KB Output is correct
7 Correct 5 ms 1116 KB Output is correct
8 Correct 5 ms 1108 KB Output is correct
9 Correct 5 ms 1104 KB Output is correct
10 Correct 6 ms 1108 KB Output is correct
11 Correct 5 ms 1080 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 167 ms 1968 KB Output is correct
2 Correct 311 ms 1924 KB Output is correct
3 Correct 435 ms 1916 KB Output is correct
4 Correct 9 ms 1720 KB Output is correct
5 Correct 10 ms 1724 KB Output is correct
6 Correct 10 ms 1628 KB Output is correct
7 Correct 9 ms 1620 KB Output is correct
8 Correct 9 ms 1620 KB Output is correct
9 Correct 8 ms 1568 KB Output is correct
10 Correct 9 ms 1492 KB Output is correct
11 Correct 9 ms 1568 KB Output is correct
12 Correct 7 ms 1464 KB Output is correct
13 Correct 11 ms 1720 KB Output is correct
14 Correct 8 ms 1748 KB Output is correct
15 Correct 9 ms 1748 KB Output is correct
16 Correct 9 ms 1724 KB Output is correct
17 Correct 12 ms 1728 KB Output is correct
18 Correct 503 ms 1424 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1460 KB Output is correct
2 Correct 9 ms 1416 KB Output is correct
3 Correct 10 ms 1596 KB Output is correct
4 Correct 11 ms 1596 KB Output is correct
5 Correct 9 ms 1624 KB Output is correct
6 Correct 9 ms 1492 KB Output is correct
7 Correct 9 ms 1492 KB Output is correct
8 Correct 8 ms 1492 KB Output is correct
9 Correct 9 ms 1468 KB Output is correct
10 Correct 9 ms 1620 KB Output is correct
11 Correct 9 ms 1620 KB Output is correct
12 Correct 8 ms 1592 KB Output is correct
13 Correct 9 ms 1588 KB Output is correct
14 Correct 8 ms 1460 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1584 KB Output is correct
2 Correct 9 ms 1748 KB Output is correct
3 Correct 9 ms 1600 KB Output is correct
4 Correct 8 ms 1492 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 5 ms 1156 KB Output is correct
7 Correct 6 ms 1044 KB Output is correct
8 Correct 7 ms 1080 KB Output is correct
9 Correct 5 ms 1072 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 6 ms 932 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1108 KB Output is correct
2 Correct 7 ms 1108 KB Output is correct
3 Correct 6 ms 1108 KB Output is correct
4 Correct 5 ms 1080 KB Output is correct
5 Correct 6 ms 1076 KB Output is correct
6 Correct 5 ms 1188 KB Output is correct
7 Correct 5 ms 1116 KB Output is correct
8 Correct 5 ms 1108 KB Output is correct
9 Correct 5 ms 1104 KB Output is correct
10 Correct 6 ms 1108 KB Output is correct
11 Correct 5 ms 1080 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 300 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 304 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 167 ms 1968 KB Output is correct
33 Correct 311 ms 1924 KB Output is correct
34 Correct 435 ms 1916 KB Output is correct
35 Correct 9 ms 1720 KB Output is correct
36 Correct 10 ms 1724 KB Output is correct
37 Correct 10 ms 1628 KB Output is correct
38 Correct 9 ms 1620 KB Output is correct
39 Correct 9 ms 1620 KB Output is correct
40 Correct 8 ms 1568 KB Output is correct
41 Correct 9 ms 1492 KB Output is correct
42 Correct 9 ms 1568 KB Output is correct
43 Correct 7 ms 1464 KB Output is correct
44 Correct 11 ms 1720 KB Output is correct
45 Correct 8 ms 1748 KB Output is correct
46 Correct 9 ms 1748 KB Output is correct
47 Correct 9 ms 1724 KB Output is correct
48 Correct 12 ms 1728 KB Output is correct
49 Correct 503 ms 1424 KB Output is correct
50 Correct 8 ms 1460 KB Output is correct
51 Correct 9 ms 1416 KB Output is correct
52 Correct 10 ms 1596 KB Output is correct
53 Correct 11 ms 1596 KB Output is correct
54 Correct 9 ms 1624 KB Output is correct
55 Correct 9 ms 1492 KB Output is correct
56 Correct 9 ms 1492 KB Output is correct
57 Correct 8 ms 1492 KB Output is correct
58 Correct 9 ms 1468 KB Output is correct
59 Correct 9 ms 1620 KB Output is correct
60 Correct 9 ms 1620 KB Output is correct
61 Correct 8 ms 1592 KB Output is correct
62 Correct 9 ms 1588 KB Output is correct
63 Correct 8 ms 1460 KB Output is correct
64 Correct 9 ms 1584 KB Output is correct
65 Correct 9 ms 1748 KB Output is correct
66 Correct 9 ms 1600 KB Output is correct
67 Correct 8 ms 1492 KB Output is correct
68 Correct 1 ms 316 KB Output is correct
69 Correct 5 ms 1156 KB Output is correct
70 Correct 6 ms 1044 KB Output is correct
71 Correct 7 ms 1080 KB Output is correct
72 Correct 5 ms 1072 KB Output is correct
73 Correct 2 ms 468 KB Output is correct
74 Correct 6 ms 932 KB Output is correct
75 Correct 297 ms 1708 KB Output is correct
76 Correct 368 ms 1916 KB Output is correct
77 Correct 513 ms 1908 KB Output is correct
78 Correct 534 ms 1876 KB Output is correct
79 Correct 526 ms 1904 KB Output is correct
80 Correct 13 ms 1636 KB Output is correct
81 Correct 11 ms 1592 KB Output is correct
82 Correct 10 ms 1620 KB Output is correct
83 Correct 10 ms 1580 KB Output is correct
84 Correct 12 ms 1748 KB Output is correct
85 Correct 9 ms 1592 KB Output is correct
86 Correct 11 ms 1596 KB Output is correct
87 Correct 9 ms 1588 KB Output is correct
88 Correct 13 ms 1504 KB Output is correct
89 Correct 12 ms 1596 KB Output is correct
90 Correct 17 ms 1492 KB Output is correct
91 Correct 15 ms 1604 KB Output is correct
92 Correct 29 ms 1636 KB Output is correct
93 Correct 33 ms 1612 KB Output is correct
94 Correct 33 ms 1580 KB Output is correct
95 Correct 35 ms 1604 KB Output is correct
96 Correct 108 ms 1620 KB Output is correct
97 Correct 449 ms 1620 KB Output is correct
98 Correct 736 ms 1584 KB Output is correct
99 Correct 834 ms 1664 KB Output is correct
100 Correct 522 ms 1424 KB Output is correct