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Submission #696408

# Submission time Handle Problem Language Result Execution time Memory
696408 2023-02-06T12:27:00 Z Quan2003 Duathlon (APIO18_duathlon) C++17
49 / 100
 96 ms 41164 KB 
#include<bits/stdc++.h>
#include<iostream>
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = 5e5 + 5;
int up[21][N + 1];
int dp[N + 1];
int a[N + 1];
int n,m,q;
long long res; 
vector<int>adj[N + 1];
vector<int>tadj[N + 1];
int trs,dsz,psz;
bool vis[N + 1]; 
int st[N + 1],low[N + 1];
int comsize = 0; 
void dfs(int u,int p){
    a[u] = low[u] = ++dsz;
    st[++psz] = u;
    comsize++; 
    for(int i = 0; i < tadj[u].size(); i++){
        int v = tadj[u][i];
        if(v == p) continue;
        if(!a[v]){
            dfs(v,u);
            low[u] = min(low[u] , low[v]);
            if( low[v] >= a[u]){
                int j = u;
                trs++;
                adj[u].push_back(trs);
               // adj[trs].push_back(u);
                while(j != v){
                    j = st[psz--];
                    adj[trs].push_back(j);
                   // adj[j].push_back(trs);
               } 
            }
        }
        else low[u] = min(a[v] , low[u]);
    }
}
void dfs_calc(int u){
     dp[u] = (u <= n);
     for(int i = 0; i  < adj[u].size(); i++){ 
          int v = adj[u][i];
           dfs_calc(v);
           dp[u] += dp[v];
           if(u > n) res = res - (long long) adj[u].size() * (dp[v] - 1) * dp[v]; 
     }
     if(u > n) res = res - (long long) adj[u].size() * (comsize - dp[u] - 1) * (comsize - dp[u]);
} 
int main(){
     scanf("%d%d",&n,&m);
     for(int i = 0; i < m; i++){
         int u,v; scanf("%d%d",&u,&v);
         tadj[u].push_back(v);
         tadj[v].push_back(u); 
     }
     trs = n;
     for(int i = 1; i <= n; i++){
        if(!a[i]){
             comsize = 0; 
             dfs(i,0);
             res += comsize * (comsize - 1) * (comsize - 2);
             dfs_calc(i);
        }
     }
     cout<<res<<endl; 
}

Compilation message

count_triplets.cpp: In function 'void dfs(int, int)':
count_triplets.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for(int i = 0; i < tadj[u].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~~
count_triplets.cpp: In function 'void dfs_calc(int)':
count_triplets.cpp:45:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |      for(int i = 0; i  < adj[u].size(); i++){
      |                     ~~~^~~~~~~~~~~~~~~
count_triplets.cpp: In function 'int main()':
count_triplets.cpp:54:11: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |      scanf("%d%d",&n,&m);
      |      ~~~~~^~~~~~~~~~~~~~
count_triplets.cpp:56:24: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |          int u,v; scanf("%d%d",&u,&v);
      |                   ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23888 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 11 ms 23800 KB Output is correct
4 Correct 15 ms 23724 KB Output is correct
5 Correct 12 ms 23724 KB Output is correct
6 Correct 12 ms 23768 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 11 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23740 KB Output is correct
11 Correct 11 ms 23796 KB Output is correct
12 Correct 14 ms 23796 KB Output is correct
13 Correct 14 ms 23768 KB Output is correct
14 Correct 15 ms 23784 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 12 ms 23764 KB Output is correct
17 Correct 14 ms 23796 KB Output is correct
18 Correct 11 ms 23788 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23764 KB Output is correct
21 Correct 12 ms 23724 KB Output is correct
22 Correct 12 ms 23800 KB Output is correct
23 Correct 11 ms 23764 KB Output is correct
24 Correct 11 ms 23748 KB Output is correct
25 Correct 15 ms 23760 KB Output is correct
26 Correct 12 ms 23764 KB Output is correct
27 Correct 12 ms 23812 KB Output is correct
28 Correct 12 ms 23764 KB Output is correct
29 Correct 14 ms 23796 KB Output is correct
30 Correct 14 ms 23796 KB Output is correct
31 Correct 15 ms 23800 KB Output is correct
32 Correct 16 ms 23712 KB Output is correct
33 Correct 13 ms 23792 KB Output is correct
34 Correct 11 ms 23764 KB Output is correct
35 Correct 12 ms 23752 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23888 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 11 ms 23800 KB Output is correct
4 Correct 15 ms 23724 KB Output is correct
5 Correct 12 ms 23724 KB Output is correct
6 Correct 12 ms 23768 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 11 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23740 KB Output is correct
11 Correct 11 ms 23796 KB Output is correct
12 Correct 14 ms 23796 KB Output is correct
13 Correct 14 ms 23768 KB Output is correct
14 Correct 15 ms 23784 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 12 ms 23764 KB Output is correct
17 Correct 14 ms 23796 KB Output is correct
18 Correct 11 ms 23788 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23764 KB Output is correct
21 Correct 12 ms 23724 KB Output is correct
22 Correct 12 ms 23800 KB Output is correct
23 Correct 11 ms 23764 KB Output is correct
24 Correct 11 ms 23748 KB Output is correct
25 Correct 15 ms 23760 KB Output is correct
26 Correct 12 ms 23764 KB Output is correct
27 Correct 12 ms 23812 KB Output is correct
28 Correct 12 ms 23764 KB Output is correct
29 Correct 14 ms 23796 KB Output is correct
30 Correct 14 ms 23796 KB Output is correct
31 Correct 15 ms 23800 KB Output is correct
32 Correct 16 ms 23712 KB Output is correct
33 Correct 13 ms 23792 KB Output is correct
34 Correct 11 ms 23764 KB Output is correct
35 Correct 12 ms 23752 KB Output is correct
36 Correct 13 ms 23776 KB Output is correct
37 Correct 12 ms 23792 KB Output is correct
38 Correct 14 ms 23728 KB Output is correct
39 Correct 14 ms 23892 KB Output is correct
40 Correct 13 ms 23784 KB Output is correct
41 Correct 15 ms 23792 KB Output is correct
42 Correct 14 ms 23812 KB Output is correct
43 Correct 15 ms 23728 KB Output is correct
44 Correct 13 ms 23800 KB Output is correct
45 Correct 14 ms 23804 KB Output is correct
46 Correct 16 ms 23732 KB Output is correct
47 Correct 11 ms 23764 KB Output is correct
48 Correct 11 ms 23764 KB Output is correct
49 Correct 12 ms 23796 KB Output is correct
50 Correct 15 ms 23744 KB Output is correct
51 Correct 13 ms 23824 KB Output is correct
52 Correct 13 ms 23752 KB Output is correct
53 Correct 15 ms 23796 KB Output is correct
54 Correct 12 ms 23772 KB Output is correct
55 Correct 14 ms 23780 KB Output is correct
56 Correct 13 ms 23796 KB Output is correct
57 Correct 11 ms 23764 KB Output is correct
58 Correct 12 ms 23800 KB Output is correct
59 Correct 12 ms 23792 KB Output is correct
60 Correct 12 ms 23764 KB Output is correct
61 Correct 12 ms 23792 KB Output is correct
62 Correct 11 ms 23720 KB Output is correct
63 Correct 12 ms 23708 KB Output is correct
64 Correct 13 ms 23792 KB Output is correct
65 Correct 11 ms 23792 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 95 ms 41164 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 23856 KB Output is correct
2 Correct 13 ms 23808 KB Output is correct
3 Correct 13 ms 23908 KB Output is correct
4 Correct 13 ms 23936 KB Output is correct
5 Correct 13 ms 23892 KB Output is correct
6 Correct 13 ms 23932 KB Output is correct
7 Correct 14 ms 23892 KB Output is correct
8 Correct 12 ms 23892 KB Output is correct
9 Correct 13 ms 23928 KB Output is correct
10 Correct 12 ms 23824 KB Output is correct
11 Correct 12 ms 23812 KB Output is correct
12 Correct 15 ms 23892 KB Output is correct
13 Correct 15 ms 23888 KB Output is correct
14 Correct 12 ms 23860 KB Output is correct
15 Correct 12 ms 23804 KB Output is correct
16 Correct 12 ms 23892 KB Output is correct
17 Correct 15 ms 23904 KB Output is correct
18 Correct 13 ms 23812 KB Output is correct
19 Correct 12 ms 23892 KB Output is correct
20 Correct 13 ms 23808 KB Output is correct

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 83 ms 34492 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23804 KB Output is correct
2 Correct 14 ms 23812 KB Output is correct
3 Correct 13 ms 23804 KB Output is correct
4 Correct 13 ms 23808 KB Output is correct
5 Correct 13 ms 23804 KB Output is correct
6 Correct 12 ms 23764 KB Output is correct
7 Correct 13 ms 23772 KB Output is correct
8 Correct 13 ms 23804 KB Output is correct
9 Correct 12 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 15 ms 23892 KB Output is correct
12 Correct 14 ms 23932 KB Output is correct
13 Correct 13 ms 23892 KB Output is correct
14 Correct 13 ms 23880 KB Output is correct
15 Correct 13 ms 23892 KB Output is correct
16 Correct 13 ms 23892 KB Output is correct
17 Correct 13 ms 23892 KB Output is correct
18 Correct 13 ms 23892 KB Output is correct
19 Correct 13 ms 23804 KB Output is correct
20 Correct 14 ms 23892 KB Output is correct
21 Correct 14 ms 23908 KB Output is correct
22 Correct 14 ms 23804 KB Output is correct
23 Correct 13 ms 23892 KB Output is correct
24 Correct 13 ms 23812 KB Output is correct
25 Correct 12 ms 23784 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 13 ms 23764 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 96 ms 34576 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23888 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 11 ms 23800 KB Output is correct
4 Correct 15 ms 23724 KB Output is correct
5 Correct 12 ms 23724 KB Output is correct
6 Correct 12 ms 23768 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 11 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23740 KB Output is correct
11 Correct 11 ms 23796 KB Output is correct
12 Correct 14 ms 23796 KB Output is correct
13 Correct 14 ms 23768 KB Output is correct
14 Correct 15 ms 23784 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 12 ms 23764 KB Output is correct
17 Correct 14 ms 23796 KB Output is correct
18 Correct 11 ms 23788 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23764 KB Output is correct
21 Correct 12 ms 23724 KB Output is correct
22 Correct 12 ms 23800 KB Output is correct
23 Correct 11 ms 23764 KB Output is correct
24 Correct 11 ms 23748 KB Output is correct
25 Correct 15 ms 23760 KB Output is correct
26 Correct 12 ms 23764 KB Output is correct
27 Correct 12 ms 23812 KB Output is correct
28 Correct 12 ms 23764 KB Output is correct
29 Correct 14 ms 23796 KB Output is correct
30 Correct 14 ms 23796 KB Output is correct
31 Correct 15 ms 23800 KB Output is correct
32 Correct 16 ms 23712 KB Output is correct
33 Correct 13 ms 23792 KB Output is correct
34 Correct 11 ms 23764 KB Output is correct
35 Correct 12 ms 23752 KB Output is correct
36 Correct 13 ms 23776 KB Output is correct
37 Correct 12 ms 23792 KB Output is correct
38 Correct 14 ms 23728 KB Output is correct
39 Correct 14 ms 23892 KB Output is correct
40 Correct 13 ms 23784 KB Output is correct
41 Correct 15 ms 23792 KB Output is correct
42 Correct 14 ms 23812 KB Output is correct
43 Correct 15 ms 23728 KB Output is correct
44 Correct 13 ms 23800 KB Output is correct
45 Correct 14 ms 23804 KB Output is correct
46 Correct 16 ms 23732 KB Output is correct
47 Correct 11 ms 23764 KB Output is correct
48 Correct 11 ms 23764 KB Output is correct
49 Correct 12 ms 23796 KB Output is correct
50 Correct 15 ms 23744 KB Output is correct
51 Correct 13 ms 23824 KB Output is correct
52 Correct 13 ms 23752 KB Output is correct
53 Correct 15 ms 23796 KB Output is correct
54 Correct 12 ms 23772 KB Output is correct
55 Correct 14 ms 23780 KB Output is correct
56 Correct 13 ms 23796 KB Output is correct
57 Correct 11 ms 23764 KB Output is correct
58 Correct 12 ms 23800 KB Output is correct
59 Correct 12 ms 23792 KB Output is correct
60 Correct 12 ms 23764 KB Output is correct
61 Correct 12 ms 23792 KB Output is correct
62 Correct 11 ms 23720 KB Output is correct
63 Correct 12 ms 23708 KB Output is correct
64 Correct 13 ms 23792 KB Output is correct
65 Correct 11 ms 23792 KB Output is correct
66 Correct 12 ms 23764 KB Output is correct
67 Correct 12 ms 23804 KB Output is correct
68 Correct 16 ms 23892 KB Output is correct
69 Correct 13 ms 23944 KB Output is correct
70 Correct 17 ms 23892 KB Output is correct
71 Correct 13 ms 23796 KB Output is correct
72 Correct 14 ms 23892 KB Output is correct
73 Correct 16 ms 23808 KB Output is correct
74 Correct 12 ms 23892 KB Output is correct
75 Correct 12 ms 23840 KB Output is correct
76 Correct 12 ms 23764 KB Output is correct
77 Correct 12 ms 23880 KB Output is correct
78 Correct 12 ms 23892 KB Output is correct
79 Correct 12 ms 23856 KB Output is correct
80 Correct 12 ms 23768 KB Output is correct
81 Correct 12 ms 23808 KB Output is correct
82 Correct 12 ms 23892 KB Output is correct
83 Correct 13 ms 23932 KB Output is correct
84 Correct 12 ms 23892 KB Output is correct
85 Correct 15 ms 23892 KB Output is correct
86 Correct 12 ms 23804 KB Output is correct
87 Correct 15 ms 23856 KB Output is correct
88 Correct 16 ms 23876 KB Output is correct
89 Correct 15 ms 23812 KB Output is correct
90 Correct 13 ms 23816 KB Output is correct
91 Correct 12 ms 23812 KB Output is correct
92 Correct 12 ms 23784 KB Output is correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23888 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 11 ms 23800 KB Output is correct
4 Correct 15 ms 23724 KB Output is correct
5 Correct 12 ms 23724 KB Output is correct
6 Correct 12 ms 23768 KB Output is correct
7 Correct 12 ms 23764 KB Output is correct
8 Correct 11 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23740 KB Output is correct
11 Correct 11 ms 23796 KB Output is correct
12 Correct 14 ms 23796 KB Output is correct
13 Correct 14 ms 23768 KB Output is correct
14 Correct 15 ms 23784 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 12 ms 23764 KB Output is correct
17 Correct 14 ms 23796 KB Output is correct
18 Correct 11 ms 23788 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23764 KB Output is correct
21 Correct 12 ms 23724 KB Output is correct
22 Correct 12 ms 23800 KB Output is correct
23 Correct 11 ms 23764 KB Output is correct
24 Correct 11 ms 23748 KB Output is correct
25 Correct 15 ms 23760 KB Output is correct
26 Correct 12 ms 23764 KB Output is correct
27 Correct 12 ms 23812 KB Output is correct
28 Correct 12 ms 23764 KB Output is correct
29 Correct 14 ms 23796 KB Output is correct
30 Correct 14 ms 23796 KB Output is correct
31 Correct 15 ms 23800 KB Output is correct
32 Correct 16 ms 23712 KB Output is correct
33 Correct 13 ms 23792 KB Output is correct
34 Correct 11 ms 23764 KB Output is correct
35 Correct 12 ms 23752 KB Output is correct
36 Correct 13 ms 23776 KB Output is correct
37 Correct 12 ms 23792 KB Output is correct
38 Correct 14 ms 23728 KB Output is correct
39 Correct 14 ms 23892 KB Output is correct
40 Correct 13 ms 23784 KB Output is correct
41 Correct 15 ms 23792 KB Output is correct
42 Correct 14 ms 23812 KB Output is correct
43 Correct 15 ms 23728 KB Output is correct
44 Correct 13 ms 23800 KB Output is correct
45 Correct 14 ms 23804 KB Output is correct
46 Correct 16 ms 23732 KB Output is correct
47 Correct 11 ms 23764 KB Output is correct
48 Correct 11 ms 23764 KB Output is correct
49 Correct 12 ms 23796 KB Output is correct
50 Correct 15 ms 23744 KB Output is correct
51 Correct 13 ms 23824 KB Output is correct
52 Correct 13 ms 23752 KB Output is correct
53 Correct 15 ms 23796 KB Output is correct
54 Correct 12 ms 23772 KB Output is correct
55 Correct 14 ms 23780 KB Output is correct
56 Correct 13 ms 23796 KB Output is correct
57 Correct 11 ms 23764 KB Output is correct
58 Correct 12 ms 23800 KB Output is correct
59 Correct 12 ms 23792 KB Output is correct
60 Correct 12 ms 23764 KB Output is correct
61 Correct 12 ms 23792 KB Output is correct
62 Correct 11 ms 23720 KB Output is correct
63 Correct 12 ms 23708 KB Output is correct
64 Correct 13 ms 23792 KB Output is correct
65 Correct 11 ms 23792 KB Output is correct
66 Incorrect 95 ms 41164 KB Output isn't correct
67 Halted 0 ms 0 KB -