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Submission #609201

# Submission time Handle Problem Language Result Execution time Memory
609201 2022-07-27T12:47:35 Z yanndev Toy Train (IOI17_train) C++17
100 / 100
 356 ms 1484 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int MX = 5042;
 
int n;
int deg[MX];
int baseDeg[MX];
int nxt[2 * MX];
bool vis[MX];
bool vis2[MX];
bool isOk[MX];
bool isAlice[MX];
bool isCharge[MX];
vector<int> rgraph[MX];
vector<int> nodes {};
 
bool BFS() {
    int start = 0;
    int end = 0;
 
    for (auto& i: nodes) {
        deg[i] = baseDeg[i];
        if (isCharge[i] && isOk[i])
            nxt[end++] = i;
        vis[i] = vis2[i] = false;
    }
 
    //cout << layer << ' ' << (int)nxt.size() << '\n';
    
    while (start < end) {
        auto cur = nxt[start++];
        //cout << "cur is " << cur << '\n';
 
        if (vis[cur])
            continue;
        vis[cur] = true;
 
        for (auto& x: rgraph[cur]) {
            if (!vis2[x] && ((--deg[x] == 0) || isAlice[x])) {
                vis2[x] = true;
                nxt[end++] = x;
            }
        }
    }
 
  	vector<int> newNodes {};
  	bool ret = false;
  
    for (auto& i: nodes) {
        if (isOk[i] && !vis2[i]) {
          	vis[i] = true;
            isOk[i] = false;
            ret = true;
        } else {
          newNodes.push_back(i);
        }
    }
 	nodes = newNodes;
    return ret;
}
 
vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    n = (int)a.size();
 
    for (int i = 0; i < (int)u.size(); i++) {
        rgraph[v[i]].push_back(u[i]);
        baseDeg[u[i]]++;
    }
    
    for (int i = 0; i < n; i++) {
        isAlice[i] = a[i];
        isCharge[i] = r[i];
        isOk[i] = true;
      	nodes.push_back(i);
    }
 
    while (BFS());
 
    vector<int> ans (n);
    for (int i = 0; i < n; i++)
        ans[i] = isOk[i];
    return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 852 KB Output is correct
2 Correct 6 ms 896 KB Output is correct
3 Correct 14 ms 900 KB Output is correct
4 Correct 8 ms 900 KB Output is correct
5 Correct 5 ms 852 KB Output is correct
6 Correct 6 ms 908 KB Output is correct
7 Correct 5 ms 852 KB Output is correct
8 Correct 6 ms 852 KB Output is correct
9 Correct 6 ms 852 KB Output is correct
10 Correct 4 ms 852 KB Output is correct
11 Correct 3 ms 852 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 428 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 428 KB Output is correct
9 Correct 2 ms 428 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 420 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 428 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 396 KB Output is correct
17 Correct 1 ms 428 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 1188 KB Output is correct
2 Correct 116 ms 1196 KB Output is correct
3 Correct 130 ms 1192 KB Output is correct
4 Correct 10 ms 1152 KB Output is correct
5 Correct 23 ms 1128 KB Output is correct
6 Correct 10 ms 1108 KB Output is correct
7 Correct 7 ms 1108 KB Output is correct
8 Correct 7 ms 1212 KB Output is correct
9 Correct 9 ms 1108 KB Output is correct
10 Correct 10 ms 1108 KB Output is correct
11 Correct 8 ms 1072 KB Output is correct
12 Correct 9 ms 980 KB Output is correct
13 Correct 7 ms 1108 KB Output is correct
14 Correct 7 ms 1108 KB Output is correct
15 Correct 7 ms 1108 KB Output is correct
16 Correct 9 ms 1108 KB Output is correct
17 Correct 8 ms 1108 KB Output is correct
18 Correct 165 ms 980 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 1020 KB Output is correct
2 Correct 8 ms 1092 KB Output is correct
3 Correct 9 ms 1132 KB Output is correct
4 Correct 9 ms 1108 KB Output is correct
5 Correct 10 ms 1108 KB Output is correct
6 Correct 20 ms 1128 KB Output is correct
7 Correct 10 ms 1128 KB Output is correct
8 Correct 6 ms 1108 KB Output is correct
9 Correct 8 ms 1108 KB Output is correct
10 Correct 7 ms 1108 KB Output is correct
11 Correct 7 ms 1108 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 10 ms 1108 KB Output is correct
14 Correct 8 ms 1108 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1128 KB Output is correct
2 Correct 10 ms 1132 KB Output is correct
3 Correct 16 ms 1128 KB Output is correct
4 Correct 8 ms 1108 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 5 ms 852 KB Output is correct
7 Correct 12 ms 828 KB Output is correct
8 Correct 7 ms 964 KB Output is correct
9 Correct 13 ms 852 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 5 ms 852 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 852 KB Output is correct
2 Correct 6 ms 896 KB Output is correct
3 Correct 14 ms 900 KB Output is correct
4 Correct 8 ms 900 KB Output is correct
5 Correct 5 ms 852 KB Output is correct
6 Correct 6 ms 908 KB Output is correct
7 Correct 5 ms 852 KB Output is correct
8 Correct 6 ms 852 KB Output is correct
9 Correct 6 ms 852 KB Output is correct
10 Correct 4 ms 852 KB Output is correct
11 Correct 3 ms 852 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 428 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 428 KB Output is correct
20 Correct 2 ms 428 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 420 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 428 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 396 KB Output is correct
28 Correct 1 ms 428 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 66 ms 1188 KB Output is correct
33 Correct 116 ms 1196 KB Output is correct
34 Correct 130 ms 1192 KB Output is correct
35 Correct 10 ms 1152 KB Output is correct
36 Correct 23 ms 1128 KB Output is correct
37 Correct 10 ms 1108 KB Output is correct
38 Correct 7 ms 1108 KB Output is correct
39 Correct 7 ms 1212 KB Output is correct
40 Correct 9 ms 1108 KB Output is correct
41 Correct 10 ms 1108 KB Output is correct
42 Correct 8 ms 1072 KB Output is correct
43 Correct 9 ms 980 KB Output is correct
44 Correct 7 ms 1108 KB Output is correct
45 Correct 7 ms 1108 KB Output is correct
46 Correct 7 ms 1108 KB Output is correct
47 Correct 9 ms 1108 KB Output is correct
48 Correct 8 ms 1108 KB Output is correct
49 Correct 165 ms 980 KB Output is correct
50 Correct 9 ms 1020 KB Output is correct
51 Correct 8 ms 1092 KB Output is correct
52 Correct 9 ms 1132 KB Output is correct
53 Correct 9 ms 1108 KB Output is correct
54 Correct 10 ms 1108 KB Output is correct
55 Correct 20 ms 1128 KB Output is correct
56 Correct 10 ms 1128 KB Output is correct
57 Correct 6 ms 1108 KB Output is correct
58 Correct 8 ms 1108 KB Output is correct
59 Correct 7 ms 1108 KB Output is correct
60 Correct 7 ms 1108 KB Output is correct
61 Correct 7 ms 1108 KB Output is correct
62 Correct 10 ms 1108 KB Output is correct
63 Correct 8 ms 1108 KB Output is correct
64 Correct 11 ms 1128 KB Output is correct
65 Correct 10 ms 1132 KB Output is correct
66 Correct 16 ms 1128 KB Output is correct
67 Correct 8 ms 1108 KB Output is correct
68 Correct 2 ms 468 KB Output is correct
69 Correct 5 ms 852 KB Output is correct
70 Correct 12 ms 828 KB Output is correct
71 Correct 7 ms 964 KB Output is correct
72 Correct 13 ms 852 KB Output is correct
73 Correct 2 ms 596 KB Output is correct
74 Correct 5 ms 852 KB Output is correct
75 Correct 110 ms 1484 KB Output is correct
76 Correct 139 ms 1400 KB Output is correct
77 Correct 169 ms 1396 KB Output is correct
78 Correct 166 ms 1404 KB Output is correct
79 Correct 194 ms 1396 KB Output is correct
80 Correct 19 ms 1340 KB Output is correct
81 Correct 12 ms 1328 KB Output is correct
82 Correct 12 ms 1364 KB Output is correct
83 Correct 11 ms 1364 KB Output is correct
84 Correct 10 ms 1408 KB Output is correct
85 Correct 8 ms 1368 KB Output is correct
86 Correct 15 ms 1364 KB Output is correct
87 Correct 11 ms 1248 KB Output is correct
88 Correct 13 ms 1340 KB Output is correct
89 Correct 9 ms 1372 KB Output is correct
90 Correct 18 ms 1340 KB Output is correct
91 Correct 16 ms 1364 KB Output is correct
92 Correct 25 ms 1336 KB Output is correct
93 Correct 25 ms 1364 KB Output is correct
94 Correct 24 ms 1364 KB Output is correct
95 Correct 26 ms 1396 KB Output is correct
96 Correct 62 ms 1304 KB Output is correct
97 Correct 173 ms 1392 KB Output is correct
98 Correct 356 ms 1360 KB Output is correct
99 Correct 318 ms 1364 KB Output is correct
100 Correct 164 ms 1092 KB Output is correct