oj.uz

Submission #161389

# Submission time Handle Problem Language Result Execution time Memory
161389 2019-11-02T07:37:28 Z georgerapeanu Split the Attractions (IOI19_split) C++14
100 / 100
 233 ms 28536 KB 
#include "split.h"
#pragma once
#include <vector>
#include <algorithm>

using namespace std;

const int NMAX = 1e5;

vector<int> graph[NMAX + 5];
vector<int> sons[NMAX + 5];

bool special[NMAX + 5];

int low[NMAX + 5];
int id[NMAX + 5],last_id;
int weight[NMAX + 5];

int global_a;
int global_b;
int global_c;
int global_n;

bool found = false;
vector<int> ans;

void dfs2(int nod,int col,int &cnt){
    if(cnt > 0){
        cnt--;
        ans[nod] = col;
    }
    else{
        ans[nod] = 3;
    }

    for(auto it:sons[nod]){
        dfs2(it,col,cnt);
    }
}

void dfs3(int nod,int col,int &cnt){
    if(cnt > 0){
        cnt--;
        ans[nod] = col;
    }
    else{
        ans[nod] = 3;
    }

    for(auto it:graph[nod]){
        if(ans[it] == 0){
            dfs3(it,col,cnt);
        }
    }
}

void dfs(int nod){
    id[nod] = low[nod] = ++last_id;
    weight[nod] = 1;
    for(auto it:graph[nod]){
        if(id[it] == 0){
            dfs(it);
            sons[nod].push_back(it);
            weight[nod] += weight[it];
            low[nod] = min(low[nod],low[it]);
        }
        else{
            low[nod] = min(low[nod],id[it]);
        }
    }

    if(found){
        return ;
    }

    if(weight[nod] >= global_a){
        int tmp = weight[nod];

        for(auto it:sons[nod]){
            if(low[it] < id[nod] && tmp - weight[it] >= global_a){
                tmp -= weight[it];
                special[it] = true;
            }
        }

        if(tmp >= global_a && global_n - tmp >= global_b){
            found = true;
            int how_many = global_a - 1;
            ans[nod] = 1;
            for(auto it:sons[nod]){
                if(special[it] == true){
                    continue;
                }
                dfs2(it,1,how_many);
            }
            how_many = global_b;
            dfs3(0,2,how_many);

        }
        else if(tmp >= global_b && global_n - tmp >= global_a){
            found = true;
            int how_many = global_b - 1;
            ans[nod] = 2;
            for(auto it:sons[nod]){
                if(special[it] == true){
                    continue;
                }
                dfs2(it,2,how_many);
            }
            how_many = global_a;
            dfs3(0,1,how_many);
        }
    }
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {

    vector<int> perm = {0,1,2,3};

    if(b < a){
        swap(a,b);
        swap(perm[1],perm[2]);
    }
    else if(c < a){
        swap(a,c);
        swap(perm[1],perm[3]);
    }
    if(b > c){
        swap(b,c);
        swap(perm[2],perm[3]);
    }

    global_a = a;
    global_b = b;
    global_c = c;
    global_n = n;

    ans.resize(n);
    
    for(int i = 0;i < (int)p.size();i++){
        graph[p[i]].push_back(q[i]);
        graph[q[i]].push_back(p[i]);
    }

    dfs(0);

    for(auto &it:ans){
        it = perm[it];
    }

	return ans;
}

Compilation message

split.cpp:2:9: warning: #pragma once in main file
 #pragma once
         ^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB ok, correct split
2 Correct 6 ms 4980 KB ok, correct split
3 Correct 6 ms 4988 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 16 ms 4984 KB ok, correct split
6 Correct 6 ms 4984 KB ok, correct split
7 Correct 150 ms 23644 KB ok, correct split
8 Correct 144 ms 21752 KB ok, correct split
9 Correct 149 ms 22008 KB ok, correct split
10 Correct 233 ms 28536 KB ok, correct split
11 Correct 143 ms 24312 KB ok, correct split

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 6 ms 4984 KB ok, correct split
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 159 ms 20216 KB ok, correct split
5 Correct 138 ms 14580 KB ok, correct split
6 Correct 169 ms 28508 KB ok, correct split
7 Correct 175 ms 24060 KB ok, correct split
8 Correct 177 ms 18380 KB ok, correct split
9 Correct 142 ms 16120 KB ok, correct split
10 Correct 76 ms 13424 KB ok, correct split
11 Correct 74 ms 13424 KB ok, correct split
12 Correct 73 ms 13776 KB ok, correct split

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 123 ms 14572 KB ok, correct split
3 Correct 42 ms 8824 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 132 ms 18552 KB ok, correct split
6 Correct 144 ms 18368 KB ok, correct split
7 Correct 135 ms 18168 KB ok, correct split
8 Correct 155 ms 19492 KB ok, correct split
9 Correct 134 ms 17912 KB ok, correct split
10 Correct 35 ms 8188 KB ok, no valid answer
11 Correct 51 ms 9720 KB ok, no valid answer
12 Correct 86 ms 13940 KB ok, no valid answer
13 Correct 109 ms 14468 KB ok, no valid answer
14 Correct 126 ms 13808 KB ok, no valid answer

Subtask #4
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4984 KB ok, correct split
2 Correct 7 ms 4984 KB ok, no valid answer
3 Correct 6 ms 4984 KB ok, correct split
4 Correct 7 ms 4984 KB ok, correct split
5 Correct 7 ms 5112 KB ok, correct split
6 Correct 6 ms 4984 KB ok, correct split
7 Correct 7 ms 4984 KB ok, correct split
8 Correct 7 ms 4984 KB ok, correct split
9 Correct 9 ms 5496 KB ok, correct split
10 Correct 9 ms 5416 KB ok, correct split
11 Correct 6 ms 5112 KB ok, correct split
12 Correct 9 ms 5368 KB ok, correct split
13 Correct 6 ms 4988 KB ok, correct split
14 Correct 7 ms 4984 KB ok, correct split
15 Correct 6 ms 4984 KB ok, correct split
16 Correct 6 ms 4984 KB ok, correct split
17 Correct 6 ms 4984 KB ok, correct split
18 Correct 7 ms 4984 KB ok, correct split
19 Correct 7 ms 4984 KB ok, correct split
20 Correct 8 ms 5240 KB ok, correct split
21 Correct 8 ms 5368 KB ok, correct split
22 Correct 8 ms 5368 KB ok, correct split
23 Correct 8 ms 5368 KB ok, correct split
24 Correct 8 ms 5368 KB ok, correct split
25 Correct 8 ms 5368 KB ok, correct split
26 Correct 9 ms 5368 KB ok, correct split
27 Correct 9 ms 5372 KB ok, correct split
28 Correct 9 ms 5368 KB ok, correct split
29 Correct 7 ms 5112 KB ok, correct split
30 Correct 10 ms 5368 KB ok, correct split
31 Correct 7 ms 5112 KB ok, correct split
32 Correct 6 ms 4984 KB ok, correct split
33 Correct 7 ms 5112 KB ok, correct split
34 Correct 8 ms 5240 KB ok, correct split
35 Correct 9 ms 5368 KB ok, correct split
36 Correct 8 ms 5240 KB ok, correct split
37 Correct 10 ms 5368 KB ok, correct split
38 Correct 9 ms 5368 KB ok, correct split
39 Correct 9 ms 5416 KB ok, correct split
40 Correct 9 ms 5368 KB ok, correct split
41 Correct 7 ms 5112 KB ok, correct split
42 Correct 7 ms 5112 KB ok, correct split
43 Correct 9 ms 5368 KB ok, correct split
44 Correct 9 ms 5368 KB ok, correct split
45 Correct 10 ms 5388 KB ok, correct split
46 Correct 8 ms 5368 KB ok, correct split
47 Correct 9 ms 5368 KB ok, no valid answer
48 Correct 8 ms 5240 KB ok, correct split
49 Correct 8 ms 5368 KB ok, correct split
50 Correct 6 ms 4984 KB ok, no valid answer
51 Correct 6 ms 4984 KB ok, no valid answer
52 Correct 9 ms 5240 KB ok, no valid answer
53 Correct 9 ms 5368 KB ok, no valid answer
54 Correct 7 ms 5240 KB ok, no valid answer
55 Correct 8 ms 5240 KB ok, no valid answer
56 Correct 8 ms 5240 KB ok, no valid answer

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB ok, correct split
2 Correct 6 ms 4980 KB ok, correct split
3 Correct 6 ms 4988 KB ok, correct split
4 Correct 6 ms 4984 KB ok, correct split
5 Correct 16 ms 4984 KB ok, correct split
6 Correct 6 ms 4984 KB ok, correct split
7 Correct 150 ms 23644 KB ok, correct split
8 Correct 144 ms 21752 KB ok, correct split
9 Correct 149 ms 22008 KB ok, correct split
10 Correct 233 ms 28536 KB ok, correct split
11 Correct 143 ms 24312 KB ok, correct split
12 Correct 6 ms 4984 KB ok, correct split
13 Correct 6 ms 4984 KB ok, correct split
14 Correct 6 ms 4984 KB ok, correct split
15 Correct 159 ms 20216 KB ok, correct split
16 Correct 138 ms 14580 KB ok, correct split
17 Correct 169 ms 28508 KB ok, correct split
18 Correct 175 ms 24060 KB ok, correct split
19 Correct 177 ms 18380 KB ok, correct split
20 Correct 142 ms 16120 KB ok, correct split
21 Correct 76 ms 13424 KB ok, correct split
22 Correct 74 ms 13424 KB ok, correct split
23 Correct 73 ms 13776 KB ok, correct split
24 Correct 6 ms 4984 KB ok, correct split
25 Correct 123 ms 14572 KB ok, correct split
26 Correct 42 ms 8824 KB ok, correct split
27 Correct 6 ms 4984 KB ok, correct split
28 Correct 132 ms 18552 KB ok, correct split
29 Correct 144 ms 18368 KB ok, correct split
30 Correct 135 ms 18168 KB ok, correct split
31 Correct 155 ms 19492 KB ok, correct split
32 Correct 134 ms 17912 KB ok, correct split
33 Correct 35 ms 8188 KB ok, no valid answer
34 Correct 51 ms 9720 KB ok, no valid answer
35 Correct 86 ms 13940 KB ok, no valid answer
36 Correct 109 ms 14468 KB ok, no valid answer
37 Correct 126 ms 13808 KB ok, no valid answer
38 Correct 6 ms 4984 KB ok, correct split
39 Correct 7 ms 4984 KB ok, no valid answer
40 Correct 6 ms 4984 KB ok, correct split
41 Correct 7 ms 4984 KB ok, correct split
42 Correct 7 ms 5112 KB ok, correct split
43 Correct 6 ms 4984 KB ok, correct split
44 Correct 7 ms 4984 KB ok, correct split
45 Correct 7 ms 4984 KB ok, correct split
46 Correct 9 ms 5496 KB ok, correct split
47 Correct 9 ms 5416 KB ok, correct split
48 Correct 6 ms 5112 KB ok, correct split
49 Correct 9 ms 5368 KB ok, correct split
50 Correct 6 ms 4988 KB ok, correct split
51 Correct 7 ms 4984 KB ok, correct split
52 Correct 6 ms 4984 KB ok, correct split
53 Correct 6 ms 4984 KB ok, correct split
54 Correct 6 ms 4984 KB ok, correct split
55 Correct 7 ms 4984 KB ok, correct split
56 Correct 7 ms 4984 KB ok, correct split
57 Correct 8 ms 5240 KB ok, correct split
58 Correct 8 ms 5368 KB ok, correct split
59 Correct 8 ms 5368 KB ok, correct split
60 Correct 8 ms 5368 KB ok, correct split
61 Correct 8 ms 5368 KB ok, correct split
62 Correct 8 ms 5368 KB ok, correct split
63 Correct 9 ms 5368 KB ok, correct split
64 Correct 9 ms 5372 KB ok, correct split
65 Correct 9 ms 5368 KB ok, correct split
66 Correct 7 ms 5112 KB ok, correct split
67 Correct 10 ms 5368 KB ok, correct split
68 Correct 7 ms 5112 KB ok, correct split
69 Correct 6 ms 4984 KB ok, correct split
70 Correct 7 ms 5112 KB ok, correct split
71 Correct 8 ms 5240 KB ok, correct split
72 Correct 9 ms 5368 KB ok, correct split
73 Correct 8 ms 5240 KB ok, correct split
74 Correct 10 ms 5368 KB ok, correct split
75 Correct 9 ms 5368 KB ok, correct split
76 Correct 9 ms 5416 KB ok, correct split
77 Correct 9 ms 5368 KB ok, correct split
78 Correct 7 ms 5112 KB ok, correct split
79 Correct 7 ms 5112 KB ok, correct split
80 Correct 9 ms 5368 KB ok, correct split
81 Correct 9 ms 5368 KB ok, correct split
82 Correct 10 ms 5388 KB ok, correct split
83 Correct 8 ms 5368 KB ok, correct split
84 Correct 9 ms 5368 KB ok, no valid answer
85 Correct 8 ms 5240 KB ok, correct split
86 Correct 8 ms 5368 KB ok, correct split
87 Correct 6 ms 4984 KB ok, no valid answer
88 Correct 6 ms 4984 KB ok, no valid answer
89 Correct 9 ms 5240 KB ok, no valid answer
90 Correct 9 ms 5368 KB ok, no valid answer
91 Correct 7 ms 5240 KB ok, no valid answer
92 Correct 8 ms 5240 KB ok, no valid answer
93 Correct 8 ms 5240 KB ok, no valid answer
94 Correct 142 ms 18908 KB ok, correct split
95 Correct 192 ms 24952 KB ok, correct split
96 Correct 173 ms 23032 KB ok, correct split
97 Correct 43 ms 8824 KB ok, correct split
98 Correct 46 ms 9080 KB ok, correct split
99 Correct 70 ms 11640 KB ok, correct split
100 Correct 203 ms 18936 KB ok, correct split
101 Correct 184 ms 17884 KB ok, correct split
102 Correct 162 ms 16996 KB ok, correct split
103 Correct 141 ms 16876 KB ok, correct split
104 Correct 136 ms 17020 KB ok, correct split
105 Correct 71 ms 11000 KB ok, correct split
106 Correct 171 ms 16932 KB ok, correct split
107 Correct 109 ms 14712 KB ok, correct split
108 Correct 116 ms 14676 KB ok, correct split
109 Correct 159 ms 18332 KB ok, correct split
110 Correct 165 ms 19184 KB ok, correct split
111 Correct 172 ms 19184 KB ok, correct split
112 Correct 181 ms 17944 KB ok, correct split
113 Correct 152 ms 17892 KB ok, correct split
114 Correct 20 ms 6776 KB ok, correct split
115 Correct 41 ms 6520 KB ok, correct split
116 Correct 177 ms 19184 KB ok, correct split
117 Correct 167 ms 19056 KB ok, correct split
118 Correct 139 ms 16248 KB ok, correct split
119 Correct 138 ms 15992 KB ok, correct split
120 Correct 145 ms 20088 KB ok, correct split
121 Correct 110 ms 14584 KB ok, no valid answer
122 Correct 98 ms 14456 KB ok, no valid answer
123 Correct 174 ms 19156 KB ok, no valid answer
124 Correct 178 ms 18936 KB ok, no valid answer
125 Correct 102 ms 15344 KB ok, no valid answer
126 Correct 65 ms 12912 KB ok, no valid answer
127 Correct 126 ms 16416 KB ok, no valid answer