oj.uz

Submission #368490

# Submission time Handle Problem Language Result Execution time Memory
368490 2021-02-20T04:48:38 Z 1306439119 Traffic (IOI10_traffic) C++11
50 / 100
 1553 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pi pair<int, int>
#define endl '\n'

void setIO(string name = "") { 
    ios_base::sync_with_stdio(0); 
	cin.tie(0);     
    if (name.length()) {
        freopen((name+".in").c_str(), "r", stdin); 
        freopen((name+".out").c_str(), "w", stdout);
    }
}

struct node{
    int id, person;
    vector<node*> adj;
    node(int i, int p, vector<node*> a){
        id = i;
        person = p;
        adj = a;
    }
};

int n;
node* A[1000000];
map<pi, int> memo;

ll dfs(node* curr, int prev){
    if(memo.find({prev, curr->id}) != memo.end()){
        return memo[{prev, curr->id}];
    }

    ll sum = curr->person;
    for(node* next : curr->adj){
        if(prev != next->id){            
            sum += dfs(next, curr->id);
        }
    }

    memo[{prev, curr->id}] = sum;    
    return sum;
}

ll root(node* root){    
    ll ret = 0;    
    for(node* next : root->adj){        
        ret = max(ret, dfs(next, root->id));
    }
    return ret;
}

int LocateCentre(int n, int* p, int* s, int* d){
    for(int i = 0; i < n; i++){        
        A[i] = new node(i, p[i], vector<node*>());        
    }
    for(int i = 0; i < n-1; i++){        
        A[s[i]]->adj.push_back(A[d[i]]);
        A[d[i]]->adj.push_back(A[s[i]]);
    }        

    ll res = LLONG_MAX, ret = -1;
    for(int i = 0; i < n; i++){        
        ll curr = root(A[i]);        
        if(curr < res){            
            res = curr;
            ret = A[i]->id;
        }
    }

    return ret;
}

/*int main(){			 
    setIO("");               
    int* p = new int[5]; 
    int* s = new int[4]; 
    int* d = new int[4];
    p[0] = 10, p[1] = 10, p[2] = 10, p[3] = 20, p[4] = 20;
    s[0] = 0, s[1] = 1, s[2] = 2, s[3] = 3;
    d[0] = 2, d[1] = 2, d[2] = 3, d[3] = 4;    
    cout << LocateCentre(5, p, s, d) << endl;;

    return 0;
}*/

Compilation message

traffic.cpp: In function 'void setIO(std::string)':
traffic.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         freopen((name+".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
traffic.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         freopen((name+".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 2 ms 640 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 620 KB Output is correct
37 Correct 1 ms 620 KB Output is correct
38 Correct 2 ms 620 KB Output is correct
39 Correct 2 ms 620 KB Output is correct
40 Correct 2 ms 620 KB Output is correct
41 Correct 3 ms 768 KB Output is correct
42 Correct 3 ms 748 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 2 ms 640 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 620 KB Output is correct
37 Correct 1 ms 620 KB Output is correct
38 Correct 2 ms 620 KB Output is correct
39 Correct 2 ms 620 KB Output is correct
40 Correct 2 ms 620 KB Output is correct
41 Correct 3 ms 768 KB Output is correct
42 Correct 3 ms 748 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 492 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 0 ms 364 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 512 KB Output is correct
62 Correct 0 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 89 ms 16956 KB Output is correct
69 Correct 198 ms 35328 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 258 ms 52972 KB Output is correct
72 Correct 353 ms 70324 KB Output is correct
73 Correct 488 ms 87928 KB Output is correct
74 Correct 598 ms 105412 KB Output is correct
75 Correct 672 ms 123008 KB Output is correct
76 Correct 741 ms 140520 KB Output is correct
77 Correct 833 ms 158096 KB Output is correct
78 Correct 1064 ms 175680 KB Output is correct
79 Correct 1091 ms 193132 KB Output is correct
80 Correct 1385 ms 210656 KB Output is correct
81 Correct 1 ms 364 KB Output is correct
82 Correct 1523 ms 228208 KB Output is correct
83 Correct 1503 ms 245756 KB Output is correct
84 Correct 1519 ms 262144 KB Output is correct
85 Runtime error 1553 ms 262144 KB Execution killed with signal 9
86 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 2 ms 640 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 620 KB Output is correct
37 Correct 1 ms 620 KB Output is correct
38 Correct 2 ms 620 KB Output is correct
39 Correct 2 ms 620 KB Output is correct
40 Correct 2 ms 620 KB Output is correct
41 Correct 3 ms 768 KB Output is correct
42 Correct 3 ms 748 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 236 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 504 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 512 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 1 ms 364 KB Output is correct
69 Correct 1 ms 364 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 1 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 1 ms 364 KB Output is correct
74 Correct 1 ms 364 KB Output is correct
75 Correct 1 ms 364 KB Output is correct
76 Correct 1 ms 364 KB Output is correct
77 Correct 1 ms 364 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 1 ms 492 KB Output is correct
80 Correct 1 ms 492 KB Output is correct
81 Correct 0 ms 364 KB Output is correct
82 Correct 2 ms 492 KB Output is correct
83 Correct 2 ms 492 KB Output is correct
84 Correct 3 ms 492 KB Output is correct
85 Correct 2 ms 492 KB Output is correct
86 Correct 2 ms 492 KB Output is correct
87 Correct 2 ms 492 KB Output is correct
88 Correct 2 ms 492 KB Output is correct
89 Correct 2 ms 492 KB Output is correct
90 Correct 2 ms 492 KB Output is correct
91 Correct 2 ms 620 KB Output is correct
92 Correct 1 ms 364 KB Output is correct
93 Correct 3 ms 620 KB Output is correct
94 Correct 1 ms 492 KB Output is correct
95 Correct 3 ms 620 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 1 ms 364 KB Output is correct
98 Correct 1 ms 364 KB Output is correct
99 Correct 1 ms 364 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 2 ms 640 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 620 KB Output is correct
37 Correct 1 ms 620 KB Output is correct
38 Correct 2 ms 620 KB Output is correct
39 Correct 2 ms 620 KB Output is correct
40 Correct 2 ms 620 KB Output is correct
41 Correct 3 ms 768 KB Output is correct
42 Correct 3 ms 748 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 492 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 0 ms 364 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 512 KB Output is correct
62 Correct 0 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1 ms 364 KB Output is correct
68 Correct 89 ms 16956 KB Output is correct
69 Correct 198 ms 35328 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 258 ms 52972 KB Output is correct
72 Correct 353 ms 70324 KB Output is correct
73 Correct 488 ms 87928 KB Output is correct
74 Correct 598 ms 105412 KB Output is correct
75 Correct 672 ms 123008 KB Output is correct
76 Correct 741 ms 140520 KB Output is correct
77 Correct 833 ms 158096 KB Output is correct
78 Correct 1064 ms 175680 KB Output is correct
79 Correct 1091 ms 193132 KB Output is correct
80 Correct 1385 ms 210656 KB Output is correct
81 Correct 1 ms 364 KB Output is correct
82 Correct 1523 ms 228208 KB Output is correct
83 Correct 1503 ms 245756 KB Output is correct
84 Correct 1519 ms 262144 KB Output is correct
85 Runtime error 1553 ms 262144 KB Execution killed with signal 9
86 Halted 0 ms 0 KB -