oj.uz

Submission #1070782

# Submission time Handle Problem Language Result Execution time Memory
1070782 2024-08-22T18:26:03 Z Ahmed57 Toy Train (IOI17_train) C++17
100 / 100
 256 ms 1884 KB 
#include "bits/stdc++.h"
 
using namespace std;
vector<int> who_wins(vector<int> a,vector<int> r,vector<int> u,vector<int> v){
    int n = a.size();
    int m = u.size();
    vector<int> adj[n+1],rev[n+1];
    for(int i = 0;i<u.size();i++){
        adj[u[i]].push_back(v[i]);
        rev[v[i]].push_back(u[i]);
    }
    vector<int> ans(n,1);
    int deg[n+1] = {0};
    int vis[n+1] = {0};
    int ch[n+1] = {0};
    while(1){
        for(int i = 0;i<n;i++){
            if(ans[i]){
                vis[i] = 0;ch[i] = 0;
                deg[i] = adj[i].size();
            }
        }
        queue<int> q;
        for(int i = 0;i<n;i++){
            if(ans[i]&&r[i]){
                q.push(i);
            }
        }
        while(!q.empty()){
            int x = q.front();q.pop();
            if(ch[x])continue;
            ch[x] = 1;
            for(auto i:rev[x]){
                deg[i]--;
                if(ans[i]&&(deg[i]==0||a[i]==1)&&!vis[i]){
                    vis[i] = 1;
                    q.push(i);
                }
            }
        }
        bool upd = 0;
        for(int i = 0;i<n;i++){
            int old = ans[i];
            ans[i]&=vis[i];
            if(old!=ans[i])upd = 1;
        }
        if(upd==0)break;
    }
    return ans;
}

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:8:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for(int i = 0;i<u.size();i++){
      |                   ~^~~~~~~~~
train.cpp:6:9: warning: unused variable 'm' [-Wunused-variable]
    6 |     int m = u.size();
      |         ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1112 KB Output is correct
2 Correct 5 ms 1188 KB Output is correct
3 Correct 4 ms 1116 KB Output is correct
4 Correct 4 ms 1116 KB Output is correct
5 Correct 5 ms 1116 KB Output is correct
6 Correct 5 ms 1324 KB Output is correct
7 Correct 4 ms 1112 KB Output is correct
8 Correct 4 ms 1120 KB Output is correct
9 Correct 3 ms 1116 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 3 ms 1216 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 356 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 376 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 1588 KB Output is correct
2 Correct 90 ms 1624 KB Output is correct
3 Correct 130 ms 1784 KB Output is correct
4 Correct 6 ms 1628 KB Output is correct
5 Correct 9 ms 1628 KB Output is correct
6 Correct 6 ms 1628 KB Output is correct
7 Correct 7 ms 1764 KB Output is correct
8 Correct 6 ms 1656 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 5 ms 1628 KB Output is correct
11 Correct 5 ms 1628 KB Output is correct
12 Correct 5 ms 1628 KB Output is correct
13 Correct 6 ms 1600 KB Output is correct
14 Correct 5 ms 1604 KB Output is correct
15 Correct 5 ms 1600 KB Output is correct
16 Correct 5 ms 1628 KB Output is correct
17 Correct 6 ms 1624 KB Output is correct
18 Correct 141 ms 1400 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1368 KB Output is correct
2 Correct 6 ms 1484 KB Output is correct
3 Correct 6 ms 1748 KB Output is correct
4 Correct 6 ms 1624 KB Output is correct
5 Correct 6 ms 1628 KB Output is correct
6 Correct 5 ms 1512 KB Output is correct
7 Correct 6 ms 1588 KB Output is correct
8 Correct 5 ms 1628 KB Output is correct
9 Correct 6 ms 1628 KB Output is correct
10 Correct 6 ms 1628 KB Output is correct
11 Correct 5 ms 1732 KB Output is correct
12 Correct 5 ms 1764 KB Output is correct
13 Correct 6 ms 1628 KB Output is correct
14 Correct 5 ms 1428 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1368 KB Output is correct
2 Correct 6 ms 1368 KB Output is correct
3 Correct 5 ms 1372 KB Output is correct
4 Correct 5 ms 1372 KB Output is correct
5 Correct 0 ms 448 KB Output is correct
6 Correct 2 ms 1116 KB Output is correct
7 Correct 3 ms 940 KB Output is correct
8 Correct 5 ms 1212 KB Output is correct
9 Correct 4 ms 1116 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 3 ms 1116 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1112 KB Output is correct
2 Correct 5 ms 1188 KB Output is correct
3 Correct 4 ms 1116 KB Output is correct
4 Correct 4 ms 1116 KB Output is correct
5 Correct 5 ms 1116 KB Output is correct
6 Correct 5 ms 1324 KB Output is correct
7 Correct 4 ms 1112 KB Output is correct
8 Correct 4 ms 1120 KB Output is correct
9 Correct 3 ms 1116 KB Output is correct
10 Correct 3 ms 1116 KB Output is correct
11 Correct 3 ms 1216 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 356 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 376 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 56 ms 1588 KB Output is correct
33 Correct 90 ms 1624 KB Output is correct
34 Correct 130 ms 1784 KB Output is correct
35 Correct 6 ms 1628 KB Output is correct
36 Correct 9 ms 1628 KB Output is correct
37 Correct 6 ms 1628 KB Output is correct
38 Correct 7 ms 1764 KB Output is correct
39 Correct 6 ms 1656 KB Output is correct
40 Correct 4 ms 1628 KB Output is correct
41 Correct 5 ms 1628 KB Output is correct
42 Correct 5 ms 1628 KB Output is correct
43 Correct 5 ms 1628 KB Output is correct
44 Correct 6 ms 1600 KB Output is correct
45 Correct 5 ms 1604 KB Output is correct
46 Correct 5 ms 1600 KB Output is correct
47 Correct 5 ms 1628 KB Output is correct
48 Correct 6 ms 1624 KB Output is correct
49 Correct 141 ms 1400 KB Output is correct
50 Correct 5 ms 1368 KB Output is correct
51 Correct 6 ms 1484 KB Output is correct
52 Correct 6 ms 1748 KB Output is correct
53 Correct 6 ms 1624 KB Output is correct
54 Correct 6 ms 1628 KB Output is correct
55 Correct 5 ms 1512 KB Output is correct
56 Correct 6 ms 1588 KB Output is correct
57 Correct 5 ms 1628 KB Output is correct
58 Correct 6 ms 1628 KB Output is correct
59 Correct 6 ms 1628 KB Output is correct
60 Correct 5 ms 1732 KB Output is correct
61 Correct 5 ms 1764 KB Output is correct
62 Correct 6 ms 1628 KB Output is correct
63 Correct 5 ms 1428 KB Output is correct
64 Correct 6 ms 1368 KB Output is correct
65 Correct 6 ms 1368 KB Output is correct
66 Correct 5 ms 1372 KB Output is correct
67 Correct 5 ms 1372 KB Output is correct
68 Correct 0 ms 448 KB Output is correct
69 Correct 2 ms 1116 KB Output is correct
70 Correct 3 ms 940 KB Output is correct
71 Correct 5 ms 1212 KB Output is correct
72 Correct 4 ms 1116 KB Output is correct
73 Correct 1 ms 604 KB Output is correct
74 Correct 3 ms 1116 KB Output is correct
75 Correct 66 ms 1624 KB Output is correct
76 Correct 91 ms 1628 KB Output is correct
77 Correct 130 ms 1628 KB Output is correct
78 Correct 126 ms 1784 KB Output is correct
79 Correct 118 ms 1776 KB Output is correct
80 Correct 6 ms 1628 KB Output is correct
81 Correct 6 ms 1628 KB Output is correct
82 Correct 7 ms 1628 KB Output is correct
83 Correct 7 ms 1728 KB Output is correct
84 Correct 8 ms 1628 KB Output is correct
85 Correct 9 ms 1744 KB Output is correct
86 Correct 9 ms 1600 KB Output is correct
87 Correct 7 ms 1628 KB Output is correct
88 Correct 11 ms 1628 KB Output is correct
89 Correct 6 ms 1628 KB Output is correct
90 Correct 14 ms 1760 KB Output is correct
91 Correct 15 ms 1760 KB Output is correct
92 Correct 25 ms 1768 KB Output is correct
93 Correct 22 ms 1624 KB Output is correct
94 Correct 22 ms 1628 KB Output is correct
95 Correct 25 ms 1768 KB Output is correct
96 Correct 44 ms 1628 KB Output is correct
97 Correct 187 ms 1628 KB Output is correct
98 Correct 256 ms 1884 KB Output is correct
99 Correct 255 ms 1628 KB Output is correct
100 Correct 172 ms 1372 KB Output is correct