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Submission #608672

# Submission time Handle Problem Language Result Execution time Memory
608672 2022-07-27T09:00:12 Z yanndev Toy Train (IOI17_train) C++17
100 / 100
 702 ms 1136 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];
 
bool BFS() {
    int start = 0;
    int end = 0;
    
    for (int i = 0; i < n; i++)
        deg[i] = baseDeg[i];
    for (int i = 0; i < n; 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;
            }
        }
    }
 
    for (int i = 0; i < n; i++) {
        if (isOk[i] && !vis2[i]) {
            isOk[i] = false;
            return true;
        }
    }
 
    return false;
}
 
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;
    }
 
    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 225 ms 844 KB Output is correct
2 Correct 252 ms 852 KB Output is correct
3 Correct 233 ms 852 KB Output is correct
4 Correct 253 ms 832 KB Output is correct
5 Correct 228 ms 848 KB Output is correct
6 Correct 242 ms 844 KB Output is correct
7 Correct 274 ms 820 KB Output is correct
8 Correct 64 ms 852 KB Output is correct
9 Correct 211 ms 812 KB Output is correct
10 Correct 195 ms 784 KB Output is correct
11 Correct 138 ms 796 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 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 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 173 ms 1116 KB Output is correct
2 Correct 279 ms 1116 KB Output is correct
3 Correct 344 ms 1112 KB Output is correct
4 Correct 10 ms 1108 KB Output is correct
5 Correct 174 ms 1092 KB Output is correct
6 Correct 218 ms 1088 KB Output is correct
7 Correct 8 ms 1108 KB Output is correct
8 Correct 181 ms 1108 KB Output is correct
9 Correct 36 ms 1052 KB Output is correct
10 Correct 138 ms 1056 KB Output is correct
11 Correct 167 ms 1036 KB Output is correct
12 Correct 51 ms 1004 KB Output is correct
13 Correct 6 ms 1108 KB Output is correct
14 Correct 6 ms 1136 KB Output is correct
15 Correct 6 ms 1108 KB Output is correct
16 Correct 6 ms 1084 KB Output is correct
17 Correct 6 ms 1108 KB Output is correct
18 Correct 321 ms 888 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 980 KB Output is correct
2 Correct 209 ms 1012 KB Output is correct
3 Correct 160 ms 1048 KB Output is correct
4 Correct 338 ms 1088 KB Output is correct
5 Correct 328 ms 1092 KB Output is correct
6 Correct 247 ms 1072 KB Output is correct
7 Correct 283 ms 1064 KB Output is correct
8 Correct 207 ms 1040 KB Output is correct
9 Correct 198 ms 1044 KB Output is correct
10 Correct 6 ms 1108 KB Output is correct
11 Correct 6 ms 1108 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 294 ms 1076 KB Output is correct
14 Correct 235 ms 1044 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 340 ms 1080 KB Output is correct
2 Correct 6 ms 1108 KB Output is correct
3 Correct 228 ms 1108 KB Output is correct
4 Correct 6 ms 980 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 40 ms 764 KB Output is correct
7 Correct 18 ms 852 KB Output is correct
8 Correct 21 ms 832 KB Output is correct
9 Correct 23 ms 940 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 9 ms 852 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 225 ms 844 KB Output is correct
2 Correct 252 ms 852 KB Output is correct
3 Correct 233 ms 852 KB Output is correct
4 Correct 253 ms 832 KB Output is correct
5 Correct 228 ms 848 KB Output is correct
6 Correct 242 ms 844 KB Output is correct
7 Correct 274 ms 820 KB Output is correct
8 Correct 64 ms 852 KB Output is correct
9 Correct 211 ms 812 KB Output is correct
10 Correct 195 ms 784 KB Output is correct
11 Correct 138 ms 796 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 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 173 ms 1116 KB Output is correct
33 Correct 279 ms 1116 KB Output is correct
34 Correct 344 ms 1112 KB Output is correct
35 Correct 10 ms 1108 KB Output is correct
36 Correct 174 ms 1092 KB Output is correct
37 Correct 218 ms 1088 KB Output is correct
38 Correct 8 ms 1108 KB Output is correct
39 Correct 181 ms 1108 KB Output is correct
40 Correct 36 ms 1052 KB Output is correct
41 Correct 138 ms 1056 KB Output is correct
42 Correct 167 ms 1036 KB Output is correct
43 Correct 51 ms 1004 KB Output is correct
44 Correct 6 ms 1108 KB Output is correct
45 Correct 6 ms 1136 KB Output is correct
46 Correct 6 ms 1108 KB Output is correct
47 Correct 6 ms 1084 KB Output is correct
48 Correct 6 ms 1108 KB Output is correct
49 Correct 321 ms 888 KB Output is correct
50 Correct 5 ms 980 KB Output is correct
51 Correct 209 ms 1012 KB Output is correct
52 Correct 160 ms 1048 KB Output is correct
53 Correct 338 ms 1088 KB Output is correct
54 Correct 328 ms 1092 KB Output is correct
55 Correct 247 ms 1072 KB Output is correct
56 Correct 283 ms 1064 KB Output is correct
57 Correct 207 ms 1040 KB Output is correct
58 Correct 198 ms 1044 KB Output is correct
59 Correct 6 ms 1108 KB Output is correct
60 Correct 6 ms 1108 KB Output is correct
61 Correct 6 ms 1108 KB Output is correct
62 Correct 294 ms 1076 KB Output is correct
63 Correct 235 ms 1044 KB Output is correct
64 Correct 340 ms 1080 KB Output is correct
65 Correct 6 ms 1108 KB Output is correct
66 Correct 228 ms 1108 KB Output is correct
67 Correct 6 ms 980 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 40 ms 764 KB Output is correct
70 Correct 18 ms 852 KB Output is correct
71 Correct 21 ms 832 KB Output is correct
72 Correct 23 ms 940 KB Output is correct
73 Correct 2 ms 596 KB Output is correct
74 Correct 9 ms 852 KB Output is correct
75 Correct 115 ms 1116 KB Output is correct
76 Correct 378 ms 1120 KB Output is correct
77 Correct 435 ms 1108 KB Output is correct
78 Correct 465 ms 1116 KB Output is correct
79 Correct 456 ms 1112 KB Output is correct
80 Correct 7 ms 1108 KB Output is correct
81 Correct 347 ms 1092 KB Output is correct
82 Correct 367 ms 1084 KB Output is correct
83 Correct 207 ms 1092 KB Output is correct
84 Correct 278 ms 1100 KB Output is correct
85 Correct 371 ms 1076 KB Output is correct
86 Correct 303 ms 1088 KB Output is correct
87 Correct 274 ms 1068 KB Output is correct
88 Correct 625 ms 1092 KB Output is correct
89 Correct 350 ms 1072 KB Output is correct
90 Correct 572 ms 1096 KB Output is correct
91 Correct 471 ms 1088 KB Output is correct
92 Correct 477 ms 1124 KB Output is correct
93 Correct 559 ms 1084 KB Output is correct
94 Correct 663 ms 1112 KB Output is correct
95 Correct 567 ms 1108 KB Output is correct
96 Correct 264 ms 1032 KB Output is correct
97 Correct 533 ms 1108 KB Output is correct
98 Correct 702 ms 1080 KB Output is correct
99 Correct 629 ms 1072 KB Output is correct
100 Correct 323 ms 920 KB Output is correct