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Submission #1081392

# Submission time Handle Problem Language Result Execution time Memory
1081392 2024-08-30T03:33:31 Z thelegendary08 The Ties That Guide Us (CEOI23_incursion) C++17
42 / 100
 276 ms 9044 KB 
#include <bits/stdc++.h>
#include "incursion.h"
#define f0r(i,n) for(int i = 0;i<n;i++)
#define vi vector<int>
using namespace std;
std::vector<int> mark(std::vector<std::pair<int, int>> F, int safe) {

    safe--;
	int n;

	int two;
	n = F.size() + 1;
	vector<int>dist(n);
	dist[safe] = 0;
	vector<int>adj[n];
	vi deg(n, 0);
	vi degcnt(4, 0);
	f0r(i, n-1){
		adj[--F[i].first].push_back(--F[i].second);
		adj[F[i].second].push_back(F[i].first);
		deg[F[i].first]++;
		deg[F[i].second]++;
	}
	//f0r(i,n)cout<<deg[i]<<' ';
	//cout<<'\n';

	f0r(i,n){
	    if(deg[i] == 2)two = i;
        degcnt[deg[i]]++;
	}

	if(degcnt[3] == 0){
        vi col(n, 0);
        queue<int>q;
        q.push(safe);
        vector<bool>vis(n,0);
        vis[safe] = 1;

        col[safe] = 0;
        while(!q.empty()){
            int cur = q.front();
            q.pop();
            for(auto u : adj[cur]){
                if(vis[u])continue;
                vis[u] = 1;
                dist[u] = dist[cur] + 1;
                col[u] = (col[cur] + 1) % 3;
                q.push(u);
            }
        }
        return col;
	}
	else{
	    vi col(n,0);
        vi par(n);
        par[two] = -1;
        queue<int>q;
        q.push(two);
        while(!q.empty()){
            int cur = q.front();
            q.pop();
            for(auto u : adj[cur]){
                if(u != par[cur]){
                    par[u] = cur;
                    q.push(u);
                }
            }
        }
        //f0r(i,n)cout<<par[i]<<' ';
        //cout<<'\n';

        int now = safe;
        while(now != -1){
            //cout<<now<<'\n';
            col[now] = 1;
            now = par[now];
        }
        //cout<<cur<<'\n';
        //cout<<par[cur]<<'\n';

        //cout<<par[par[par[cur]]]<<'\n';
        return col;


	}


}

void locate(std::vector<std::pair<int, int>> F, int curr, int t) {
	int x;
	vector<int>nxt = {2, 0, 1};
	int n = F.size() + 1;
	vector<bool>vis(n+1, 0);
	vector<int>adj[n+1];
	vi deg(n+1);
	vi degcnt(4, 0);
	f0r(i, n-1){
		adj[F[i].first].push_back(F[i].second);
		adj[F[i].second].push_back(F[i].first);
		deg[F[i].first]++;
		deg[F[i].second]++;
	}
	int two;
	for(int i = 1; i<=n; i++){
        if(deg[i]==2)two = i;
        degcnt[deg[i]]++;
	}
	if(degcnt[3] == 0){
        vis[curr] = 1;
        //queue<int>q;
        //q.push(curr);
        bool found = false;
        int col = t;
        int cur = curr;
        vi cols(n+1, -1);
        cols[curr] = t;
        while(!found){
            bool ok = 0;
            for(auto u : adj[cur]){
                if(vis[u])continue;
                vis[u] = 1;
                x = visit(u);
                cols[u] = x;
                if(x == nxt[cols[cur]]){
                    cur = u;
                    ok = 1;
                    break;
                }
                else{
                    visit(cur);
                }
            }
            if(!ok)return;
        }
	}
	else{
        vi par(n+1);
        par[two] = -1;
        vi d(n+1, 0);

        queue<int>q;
        q.push(two);
        while(!q.empty()){
            int cur = q.front();
            q.pop();
            for(auto u : adj[cur]){
                if(u != par[cur]){
                    par[u] = cur;
                    d[u] = d[cur] + 1;
                    q.push(u);
                }
            }
        }
        //for(int i = 1; i<=n; i++)cout<<d[i]<<' ';
        //cout<<'\n';
        vector<bool>viss(n+1, 0);
        vi sts(n+1, 0);


        priority_queue<pair<int,int>>pq;
        for(int i=1; i<=n;i++){
            if(deg[i] == 1){
                pq.push({d[i], i});
                sts[i] = 1;
                viss[i] = 1;
            }
        }
        while(!pq.empty()){
            int cur = pq.top().second;
            pq.pop();
            //cout<<cur<<'\n';
            //if(par[cur] != -1)sts[par[cur]] += sts[cur];
            if(par[cur] != -1 && !viss[par[cur]]){
                viss[par[cur]] = 1;
                for(auto u : adj[par[cur]]){
                    if(u != par[par[cur]]){
                        sts[par[cur]] += sts[u];
                    }
                }
                pq.push({d[par[cur]], par[cur]});
            }
        }
        //for(int i = 1; i<=n; i++)cout<<sts[i]<<' ';
        //cout<<'\n';
        vi vis(n+1, 0);
        int cur = curr;
        int col = t;
        int x;
        vis[cur] = 1;
        while(col == 0){
            cur = par[cur];
            vis[cur] = 1;
            x = visit(cur);
            col = x;
        }
        bool found = 0;
        while(!found){
            vector<pair<int,int>>thing;
            for(auto u : adj[cur]){
                if(!vis[u] && u != par[cur])thing.push_back({sts[u], u});
            }
            sort(thing.rbegin(), thing.rend());
            bool ok =0;
            for(auto u : thing){
                x = visit(u.second);
                if(x == 0){
                    visit(cur);
                }
                else{
                    cur = u.second;
                    vis[cur] = 1;
                    col = x;
                    ok = 1;
                    break;
                }
            }
            if(!ok)return;
        }

	}



}

Compilation message

incursion.cpp: In function 'void locate(std::vector<std::pair<int, int> >, int, int)':
incursion.cpp:114:13: warning: unused variable 'col' [-Wunused-variable]
  114 |         int col = t;
      |             ^~~
interface.cpp: In function 'int main()':
interface.cpp:44:55: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   44 |     if(fread(T.data(), sizeof(int), 2 * N - 2, stdin) != 2 * N - 2) exit(0);
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
interface.cpp:50:33: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   50 |         int l = (numbers.size() == N ? N : 0);
      |                  ~~~~~~~~~~~~~~~^~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 768 KB Partially correct

Subtask #1
12.0 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 215 ms 8080 KB Partially correct
2 Partially correct 208 ms 8068 KB Partially correct
3 Partially correct 97 ms 7952 KB Partially correct
4 Partially correct 101 ms 7836 KB Partially correct
5 Partially correct 192 ms 8080 KB Partially correct
6 Partially correct 84 ms 7760 KB Partially correct
7 Partially correct 76 ms 7756 KB Partially correct
8 Partially correct 192 ms 8276 KB Partially correct
9 Partially correct 220 ms 8124 KB Partially correct
10 Partially correct 157 ms 8036 KB Partially correct
11 Partially correct 102 ms 8136 KB Partially correct
12 Partially correct 276 ms 7864 KB Partially correct
13 Partially correct 74 ms 7840 KB Partially correct
14 Partially correct 78 ms 8292 KB Partially correct
15 Partially correct 221 ms 8056 KB Partially correct
16 Partially correct 229 ms 8060 KB Partially correct
17 Partially correct 114 ms 7844 KB Partially correct
18 Partially correct 89 ms 7868 KB Partially correct
19 Partially correct 138 ms 8120 KB Partially correct
20 Partially correct 73 ms 7772 KB Partially correct
21 Partially correct 78 ms 7836 KB Partially correct
22 Partially correct 207 ms 8092 KB Partially correct
23 Partially correct 208 ms 8068 KB Partially correct
24 Partially correct 90 ms 8104 KB Partially correct
25 Partially correct 86 ms 7960 KB Partially correct
26 Partially correct 90 ms 8124 KB Partially correct
27 Partially correct 79 ms 7776 KB Partially correct
28 Partially correct 79 ms 7872 KB Partially correct
29 Partially correct 216 ms 7872 KB Partially correct
30 Partially correct 199 ms 8036 KB Partially correct
31 Partially correct 83 ms 7952 KB Partially correct
32 Partially correct 241 ms 8132 KB Partially correct
33 Partially correct 230 ms 8284 KB Partially correct
34 Partially correct 83 ms 8052 KB Partially correct
35 Partially correct 82 ms 8276 KB Partially correct
36 Partially correct 189 ms 7868 KB Partially correct
37 Partially correct 204 ms 8060 KB Partially correct
38 Partially correct 239 ms 7868 KB Partially correct
39 Partially correct 145 ms 8064 KB Partially correct
40 Partially correct 202 ms 8092 KB Partially correct
41 Partially correct 84 ms 8036 KB Partially correct
42 Partially correct 81 ms 8032 KB Partially correct
43 Partially correct 222 ms 8064 KB Partially correct
44 Partially correct 193 ms 7872 KB Partially correct
45 Partially correct 84 ms 7848 KB Partially correct
46 Partially correct 71 ms 7840 KB Partially correct
47 Partially correct 90 ms 8268 KB Partially correct
48 Partially correct 73 ms 7772 KB Partially correct
49 Partially correct 76 ms 8100 KB Partially correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 8936 KB Correct
2 Correct 82 ms 8860 KB Correct
3 Correct 83 ms 8932 KB Correct
4 Correct 96 ms 8804 KB Correct
5 Correct 156 ms 8964 KB Correct
6 Correct 164 ms 8908 KB Correct
7 Correct 94 ms 8824 KB Correct
8 Correct 81 ms 8668 KB Correct
9 Correct 84 ms 8712 KB Correct
10 Correct 77 ms 8756 KB Correct
11 Correct 79 ms 8680 KB Correct
12 Correct 72 ms 8792 KB Correct
13 Correct 74 ms 8764 KB Correct
14 Correct 65 ms 6628 KB Correct
15 Correct 59 ms 6644 KB Correct
16 Correct 80 ms 8784 KB Correct
17 Correct 75 ms 8964 KB Correct
18 Correct 89 ms 8676 KB Correct
19 Correct 81 ms 8720 KB Correct
20 Correct 61 ms 6552 KB Correct
21 Correct 56 ms 6780 KB Correct
22 Correct 62 ms 6720 KB Correct
23 Correct 60 ms 6664 KB Correct
24 Correct 61 ms 6576 KB Correct
25 Correct 55 ms 6728 KB Correct
26 Correct 80 ms 8684 KB Correct
27 Correct 80 ms 8708 KB Correct
28 Correct 86 ms 8956 KB Correct
29 Correct 82 ms 8832 KB Correct
30 Correct 92 ms 8988 KB Correct
31 Correct 86 ms 9016 KB Correct
32 Correct 89 ms 8680 KB Correct
33 Correct 80 ms 8896 KB Correct
34 Correct 82 ms 8968 KB Correct
35 Correct 83 ms 8764 KB Correct
36 Correct 84 ms 9024 KB Correct
37 Correct 92 ms 8760 KB Correct
38 Correct 82 ms 8948 KB Correct
39 Correct 95 ms 8952 KB Correct
40 Correct 83 ms 8764 KB Correct
41 Correct 88 ms 8880 KB Correct
42 Correct 81 ms 8696 KB Correct
43 Correct 82 ms 8860 KB Correct
44 Correct 82 ms 8880 KB Correct
45 Correct 89 ms 8824 KB Correct
46 Correct 82 ms 8940 KB Correct
47 Correct 93 ms 8948 KB Correct
48 Correct 81 ms 8768 KB Correct
49 Correct 70 ms 8712 KB Correct
50 Correct 84 ms 8952 KB Correct
51 Correct 94 ms 8936 KB Correct
52 Correct 92 ms 8764 KB Correct
53 Correct 75 ms 8872 KB Correct
54 Correct 63 ms 8868 KB Correct
55 Correct 78 ms 9044 KB Correct
56 Correct 86 ms 8924 KB Correct
57 Correct 74 ms 8572 KB Correct
58 Correct 81 ms 8740 KB Correct
59 Correct 80 ms 8684 KB Correct
60 Correct 92 ms 8732 KB Correct
61 Correct 77 ms 8736 KB Correct
62 Correct 89 ms 8736 KB Correct
63 Correct 82 ms 8740 KB Correct
64 Correct 84 ms 8660 KB Correct
65 Correct 96 ms 8596 KB Correct

Subtask #3
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 768 KB Partially correct
2 Partially correct 215 ms 8080 KB Partially correct
3 Partially correct 208 ms 8068 KB Partially correct
4 Partially correct 97 ms 7952 KB Partially correct
5 Partially correct 101 ms 7836 KB Partially correct
6 Partially correct 192 ms 8080 KB Partially correct
7 Partially correct 84 ms 7760 KB Partially correct
8 Partially correct 76 ms 7756 KB Partially correct
9 Partially correct 192 ms 8276 KB Partially correct
10 Partially correct 220 ms 8124 KB Partially correct
11 Partially correct 157 ms 8036 KB Partially correct
12 Partially correct 102 ms 8136 KB Partially correct
13 Partially correct 276 ms 7864 KB Partially correct
14 Partially correct 74 ms 7840 KB Partially correct
15 Partially correct 78 ms 8292 KB Partially correct
16 Partially correct 221 ms 8056 KB Partially correct
17 Partially correct 229 ms 8060 KB Partially correct
18 Partially correct 114 ms 7844 KB Partially correct
19 Partially correct 89 ms 7868 KB Partially correct
20 Partially correct 138 ms 8120 KB Partially correct
21 Partially correct 73 ms 7772 KB Partially correct
22 Partially correct 78 ms 7836 KB Partially correct
23 Partially correct 207 ms 8092 KB Partially correct
24 Partially correct 208 ms 8068 KB Partially correct
25 Partially correct 90 ms 8104 KB Partially correct
26 Partially correct 86 ms 7960 KB Partially correct
27 Partially correct 90 ms 8124 KB Partially correct
28 Partially correct 79 ms 7776 KB Partially correct
29 Partially correct 79 ms 7872 KB Partially correct
30 Partially correct 216 ms 7872 KB Partially correct
31 Partially correct 199 ms 8036 KB Partially correct
32 Partially correct 83 ms 7952 KB Partially correct
33 Partially correct 241 ms 8132 KB Partially correct
34 Partially correct 230 ms 8284 KB Partially correct
35 Partially correct 83 ms 8052 KB Partially correct
36 Partially correct 82 ms 8276 KB Partially correct
37 Partially correct 189 ms 7868 KB Partially correct
38 Partially correct 204 ms 8060 KB Partially correct
39 Partially correct 239 ms 7868 KB Partially correct
40 Partially correct 145 ms 8064 KB Partially correct
41 Partially correct 202 ms 8092 KB Partially correct
42 Partially correct 84 ms 8036 KB Partially correct
43 Partially correct 81 ms 8032 KB Partially correct
44 Partially correct 222 ms 8064 KB Partially correct
45 Partially correct 193 ms 7872 KB Partially correct
46 Partially correct 84 ms 7848 KB Partially correct
47 Partially correct 71 ms 7840 KB Partially correct
48 Partially correct 90 ms 8268 KB Partially correct
49 Partially correct 73 ms 7772 KB Partially correct
50 Partially correct 76 ms 8100 KB Partially correct
51 Correct 83 ms 8936 KB Correct
52 Correct 82 ms 8860 KB Correct
53 Correct 83 ms 8932 KB Correct
54 Correct 96 ms 8804 KB Correct
55 Correct 156 ms 8964 KB Correct
56 Correct 164 ms 8908 KB Correct
57 Correct 94 ms 8824 KB Correct
58 Correct 81 ms 8668 KB Correct
59 Correct 84 ms 8712 KB Correct
60 Correct 77 ms 8756 KB Correct
61 Correct 79 ms 8680 KB Correct
62 Correct 72 ms 8792 KB Correct
63 Correct 74 ms 8764 KB Correct
64 Correct 65 ms 6628 KB Correct
65 Correct 59 ms 6644 KB Correct
66 Correct 80 ms 8784 KB Correct
67 Correct 75 ms 8964 KB Correct
68 Correct 89 ms 8676 KB Correct
69 Correct 81 ms 8720 KB Correct
70 Correct 61 ms 6552 KB Correct
71 Correct 56 ms 6780 KB Correct
72 Correct 62 ms 6720 KB Correct
73 Correct 60 ms 6664 KB Correct
74 Correct 61 ms 6576 KB Correct
75 Correct 55 ms 6728 KB Correct
76 Correct 80 ms 8684 KB Correct
77 Correct 80 ms 8708 KB Correct
78 Correct 86 ms 8956 KB Correct
79 Correct 82 ms 8832 KB Correct
80 Correct 92 ms 8988 KB Correct
81 Correct 86 ms 9016 KB Correct
82 Correct 89 ms 8680 KB Correct
83 Correct 80 ms 8896 KB Correct
84 Correct 82 ms 8968 KB Correct
85 Correct 83 ms 8764 KB Correct
86 Correct 84 ms 9024 KB Correct
87 Correct 92 ms 8760 KB Correct
88 Correct 82 ms 8948 KB Correct
89 Correct 95 ms 8952 KB Correct
90 Correct 83 ms 8764 KB Correct
91 Correct 88 ms 8880 KB Correct
92 Correct 81 ms 8696 KB Correct
93 Correct 82 ms 8860 KB Correct
94 Correct 82 ms 8880 KB Correct
95 Correct 89 ms 8824 KB Correct
96 Correct 82 ms 8940 KB Correct
97 Correct 93 ms 8948 KB Correct
98 Correct 81 ms 8768 KB Correct
99 Correct 70 ms 8712 KB Correct
100 Correct 84 ms 8952 KB Correct
101 Correct 94 ms 8936 KB Correct
102 Correct 92 ms 8764 KB Correct
103 Correct 75 ms 8872 KB Correct
104 Correct 63 ms 8868 KB Correct
105 Correct 78 ms 9044 KB Correct
106 Correct 86 ms 8924 KB Correct
107 Correct 74 ms 8572 KB Correct
108 Correct 81 ms 8740 KB Correct
109 Correct 80 ms 8684 KB Correct
110 Correct 92 ms 8732 KB Correct
111 Correct 77 ms 8736 KB Correct
112 Correct 89 ms 8736 KB Correct
113 Correct 82 ms 8740 KB Correct
114 Correct 84 ms 8660 KB Correct
115 Correct 96 ms 8596 KB Correct
116 Incorrect 83 ms 8792 KB Not correct
117 Halted 0 ms 0 KB -