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Submission #91999

# Submission time Handle Problem Language Result Execution time Memory
91999 2018-12-31T21:48:01 Z popovicirobert Birthday gift (IZhO18_treearray) C++14
100 / 100
 1271 ms 101072 KB 
#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
#define ld long double
// 217
// 44

using namespace std;

const int MAXN = (int) 2e5;
const int LOG = 19;

vector <int> g[MAXN + 1];
int lvl[MAXN + 1];

int rmq[2 * MAXN + 1][LOG + 1];
int first[MAXN + 1], sz;

void dfs(int nod, int par) {
    rmq[++sz][0] = nod;
    first[nod] = sz;
    lvl[nod] = lvl[par] + 1;
    for(auto it : g[nod]) {
        if(it != par) {
            dfs(it, nod);
            rmq[++sz][0] = nod;
        }
    }
}

char lg[2 * MAXN + 1];

inline void prec(int n) {
    dfs(1, 0);
    for(int i = 2; i <= sz; i++) {
        lg[i] = lg[i >> 1] + 1;
    }
    for(int bit = 1; (1 << bit) <= sz; bit++) {
        for(int i = 1; i + (1 << bit) <= sz + 1; i++) {
            int a = rmq[i][bit - 1], b = rmq[i + (1 << (bit - 1))][bit - 1];
            if(lvl[a] < lvl[b])
                rmq[i][bit] = a;
            else
                rmq[i][bit] = b;
        }
    }
}

inline int get(int x, int y) {
    x = first[x], y = first[y];
    if(x > y) {
        swap(x, y);
    }
    int bit = lg[y - x + 1];
    int a = rmq[x][bit], b = rmq[y - (1 << bit) + 1][bit];
    if(lvl[a] < lvl[b])
        return a;
    return b;
}

int arr[MAXN + 1];

multiset <int> mst1[MAXN + 1], mst2[MAXN + 1];

int main() {
    //ifstream cin("A.in");
    //ofstream cout("A.out");
    int i, n, m, q;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin >> n >> m >> q;
    for(i = 1; i < n; i++) {
        int x, y;
        cin >> x >> y;
        g[x].push_back(y);
        g[y].push_back(x);
    }
    prec(n);
    for(i = 1; i<= m; i++) {
        cin >> arr[i];
    }
    for(i = 1; i <= m; i++) {
        mst1[arr[i]].insert(i);
        if(i < m) {
            mst2[get(arr[i], arr[i + 1])].insert(i);
        }
    }
    while(q > 0) {
        q--;
        int type;
        cin >> type;
        if(type == 1) {
            int pos, nod;
            cin >> pos >> nod;
            mst1[arr[pos]].erase(mst1[arr[pos]].find(pos));
            mst1[nod].insert(pos);
            if(pos > 1) {
                int x = get(arr[pos], arr[pos - 1]);
                mst2[x].erase(mst2[x].find(pos - 1));
                x = get(nod, arr[pos - 1]);
                mst2[x].insert(pos - 1);
            }
            if(pos < m) {
                int x = get(arr[pos], arr[pos + 1]);
                mst2[x].erase(mst2[x].find(pos));
                x = get(nod, arr[pos + 1]);
                mst2[x].insert(pos);
            }
            arr[pos] = nod;
        }
        else {
            int l, r, nod;
            cin >> l >> r >> nod;
            pair <int, int> ans = {-1, -1};
            if(mst1[nod].lower_bound(l) != mst1[nod].end()) {
                auto it = mst1[nod].lower_bound(l);
                if(*it <= r) {
                    ans = {*it, *it};
                }
            }
            if(mst2[nod].lower_bound(l) != mst2[nod].end()) {
                auto it = mst2[nod].lower_bound(l);
                if(*it < r) {
                    ans = {*it, *it + 1};
                }
            }
            cout << ans.first << " " << ans.second << "\n";
        }
    }
    //cin.close();
    //cout.close();
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23800 KB n=5
2 Correct 20 ms 23816 KB n=100
3 Correct 19 ms 23804 KB n=100
4 Correct 22 ms 23928 KB n=100
5 Correct 20 ms 23928 KB n=100
6 Correct 19 ms 23800 KB n=100
7 Correct 19 ms 23800 KB n=100
8 Correct 20 ms 23800 KB n=100
9 Correct 19 ms 23800 KB n=100
10 Correct 19 ms 23800 KB n=100
11 Correct 20 ms 23900 KB n=100
12 Correct 23 ms 23848 KB n=100
13 Correct 21 ms 23928 KB n=100
14 Correct 19 ms 23800 KB n=100
15 Correct 19 ms 23928 KB n=100
16 Correct 19 ms 23800 KB n=100
17 Correct 19 ms 23928 KB n=100
18 Correct 19 ms 23800 KB n=100
19 Correct 19 ms 23900 KB n=100
20 Correct 23 ms 23928 KB n=100
21 Correct 23 ms 23928 KB n=100
22 Correct 23 ms 23800 KB n=100
23 Correct 23 ms 23928 KB n=100
24 Correct 23 ms 23800 KB n=100
25 Correct 23 ms 23928 KB n=100
26 Correct 23 ms 23900 KB n=12
27 Correct 23 ms 23900 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23800 KB n=5
2 Correct 20 ms 23816 KB n=100
3 Correct 19 ms 23804 KB n=100
4 Correct 22 ms 23928 KB n=100
5 Correct 20 ms 23928 KB n=100
6 Correct 19 ms 23800 KB n=100
7 Correct 19 ms 23800 KB n=100
8 Correct 20 ms 23800 KB n=100
9 Correct 19 ms 23800 KB n=100
10 Correct 19 ms 23800 KB n=100
11 Correct 20 ms 23900 KB n=100
12 Correct 23 ms 23848 KB n=100
13 Correct 21 ms 23928 KB n=100
14 Correct 19 ms 23800 KB n=100
15 Correct 19 ms 23928 KB n=100
16 Correct 19 ms 23800 KB n=100
17 Correct 19 ms 23928 KB n=100
18 Correct 19 ms 23800 KB n=100
19 Correct 19 ms 23900 KB n=100
20 Correct 23 ms 23928 KB n=100
21 Correct 23 ms 23928 KB n=100
22 Correct 23 ms 23800 KB n=100
23 Correct 23 ms 23928 KB n=100
24 Correct 23 ms 23800 KB n=100
25 Correct 23 ms 23928 KB n=100
26 Correct 23 ms 23900 KB n=12
27 Correct 23 ms 23900 KB n=100
28 Correct 20 ms 23928 KB n=500
29 Correct 20 ms 24056 KB n=500
30 Correct 24 ms 24056 KB n=500
31 Correct 23 ms 23980 KB n=500
32 Correct 24 ms 24052 KB n=500
33 Correct 23 ms 24056 KB n=500
34 Correct 22 ms 24056 KB n=500
35 Correct 23 ms 24056 KB n=500
36 Correct 24 ms 23984 KB n=500
37 Correct 23 ms 23932 KB n=500
38 Correct 23 ms 23932 KB n=500
39 Correct 23 ms 23928 KB n=500
40 Correct 23 ms 24056 KB n=500
41 Correct 23 ms 24056 KB n=500
42 Correct 23 ms 24056 KB n=500
43 Correct 23 ms 23928 KB n=500
44 Correct 23 ms 23928 KB n=500
45 Correct 23 ms 23944 KB n=500
46 Correct 23 ms 23928 KB n=500
47 Correct 23 ms 24004 KB n=500
48 Correct 20 ms 23928 KB n=500
49 Correct 20 ms 23928 KB n=500
50 Correct 20 ms 23956 KB n=500
51 Correct 24 ms 24056 KB n=500
52 Correct 23 ms 24056 KB n=500
53 Correct 20 ms 23928 KB n=500
54 Correct 19 ms 23928 KB n=500
55 Correct 19 ms 23928 KB n=278
56 Correct 19 ms 23928 KB n=500
57 Correct 19 ms 23928 KB n=500
58 Correct 19 ms 23928 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23800 KB n=5
2 Correct 20 ms 23816 KB n=100
3 Correct 19 ms 23804 KB n=100
4 Correct 22 ms 23928 KB n=100
5 Correct 20 ms 23928 KB n=100
6 Correct 19 ms 23800 KB n=100
7 Correct 19 ms 23800 KB n=100
8 Correct 20 ms 23800 KB n=100
9 Correct 19 ms 23800 KB n=100
10 Correct 19 ms 23800 KB n=100
11 Correct 20 ms 23900 KB n=100
12 Correct 23 ms 23848 KB n=100
13 Correct 21 ms 23928 KB n=100
14 Correct 19 ms 23800 KB n=100
15 Correct 19 ms 23928 KB n=100
16 Correct 19 ms 23800 KB n=100
17 Correct 19 ms 23928 KB n=100
18 Correct 19 ms 23800 KB n=100
19 Correct 19 ms 23900 KB n=100
20 Correct 23 ms 23928 KB n=100
21 Correct 23 ms 23928 KB n=100
22 Correct 23 ms 23800 KB n=100
23 Correct 23 ms 23928 KB n=100
24 Correct 23 ms 23800 KB n=100
25 Correct 23 ms 23928 KB n=100
26 Correct 23 ms 23900 KB n=12
27 Correct 23 ms 23900 KB n=100
28 Correct 20 ms 23928 KB n=500
29 Correct 20 ms 24056 KB n=500
30 Correct 24 ms 24056 KB n=500
31 Correct 23 ms 23980 KB n=500
32 Correct 24 ms 24052 KB n=500
33 Correct 23 ms 24056 KB n=500
34 Correct 22 ms 24056 KB n=500
35 Correct 23 ms 24056 KB n=500
36 Correct 24 ms 23984 KB n=500
37 Correct 23 ms 23932 KB n=500
38 Correct 23 ms 23932 KB n=500
39 Correct 23 ms 23928 KB n=500
40 Correct 23 ms 24056 KB n=500
41 Correct 23 ms 24056 KB n=500
42 Correct 23 ms 24056 KB n=500
43 Correct 23 ms 23928 KB n=500
44 Correct 23 ms 23928 KB n=500
45 Correct 23 ms 23944 KB n=500
46 Correct 23 ms 23928 KB n=500
47 Correct 23 ms 24004 KB n=500
48 Correct 20 ms 23928 KB n=500
49 Correct 20 ms 23928 KB n=500
50 Correct 20 ms 23956 KB n=500
51 Correct 24 ms 24056 KB n=500
52 Correct 23 ms 24056 KB n=500
53 Correct 20 ms 23928 KB n=500
54 Correct 19 ms 23928 KB n=500
55 Correct 19 ms 23928 KB n=278
56 Correct 19 ms 23928 KB n=500
57 Correct 19 ms 23928 KB n=500
58 Correct 19 ms 23928 KB n=500
59 Correct 22 ms 24440 KB n=2000
60 Correct 21 ms 24568 KB n=2000
61 Correct 22 ms 24440 KB n=2000
62 Correct 23 ms 24440 KB n=2000
63 Correct 23 ms 24572 KB n=2000
64 Correct 23 ms 24440 KB n=2000
65 Correct 22 ms 24412 KB n=2000
66 Correct 21 ms 24440 KB n=2000
67 Correct 23 ms 24440 KB n=2000
68 Correct 22 ms 24440 KB n=2000
69 Correct 23 ms 24440 KB n=2000
70 Correct 22 ms 24440 KB n=2000
71 Correct 22 ms 24504 KB n=2000
72 Correct 21 ms 24440 KB n=2000
73 Correct 46 ms 24440 KB n=2000
74 Correct 22 ms 24384 KB n=1844
75 Correct 21 ms 24440 KB n=2000
76 Correct 37 ms 24568 KB n=2000
77 Correct 22 ms 24440 KB n=2000
78 Correct 23 ms 24440 KB n=2000
79 Correct 23 ms 24440 KB n=2000
80 Correct 23 ms 24584 KB n=2000
81 Correct 22 ms 24440 KB n=2000
82 Correct 55 ms 24440 KB n=2000
83 Correct 23 ms 24568 KB n=2000
84 Correct 22 ms 24440 KB n=2000
85 Correct 23 ms 24552 KB n=2000
86 Correct 23 ms 24440 KB n=2000
87 Correct 23 ms 24440 KB n=2000
88 Correct 22 ms 24568 KB n=2000
89 Correct 22 ms 24568 KB n=2000
90 Correct 21 ms 24568 KB n=2000
91 Correct 22 ms 24440 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23800 KB n=5
2 Correct 20 ms 23816 KB n=100
3 Correct 19 ms 23804 KB n=100
4 Correct 22 ms 23928 KB n=100
5 Correct 20 ms 23928 KB n=100
6 Correct 19 ms 23800 KB n=100
7 Correct 19 ms 23800 KB n=100
8 Correct 20 ms 23800 KB n=100
9 Correct 19 ms 23800 KB n=100
10 Correct 19 ms 23800 KB n=100
11 Correct 20 ms 23900 KB n=100
12 Correct 23 ms 23848 KB n=100
13 Correct 21 ms 23928 KB n=100
14 Correct 19 ms 23800 KB n=100
15 Correct 19 ms 23928 KB n=100
16 Correct 19 ms 23800 KB n=100
17 Correct 19 ms 23928 KB n=100
18 Correct 19 ms 23800 KB n=100
19 Correct 19 ms 23900 KB n=100
20 Correct 23 ms 23928 KB n=100
21 Correct 23 ms 23928 KB n=100
22 Correct 23 ms 23800 KB n=100
23 Correct 23 ms 23928 KB n=100
24 Correct 23 ms 23800 KB n=100
25 Correct 23 ms 23928 KB n=100
26 Correct 23 ms 23900 KB n=12
27 Correct 23 ms 23900 KB n=100
28 Correct 20 ms 23928 KB n=500
29 Correct 20 ms 24056 KB n=500
30 Correct 24 ms 24056 KB n=500
31 Correct 23 ms 23980 KB n=500
32 Correct 24 ms 24052 KB n=500
33 Correct 23 ms 24056 KB n=500
34 Correct 22 ms 24056 KB n=500
35 Correct 23 ms 24056 KB n=500
36 Correct 24 ms 23984 KB n=500
37 Correct 23 ms 23932 KB n=500
38 Correct 23 ms 23932 KB n=500
39 Correct 23 ms 23928 KB n=500
40 Correct 23 ms 24056 KB n=500
41 Correct 23 ms 24056 KB n=500
42 Correct 23 ms 24056 KB n=500
43 Correct 23 ms 23928 KB n=500
44 Correct 23 ms 23928 KB n=500
45 Correct 23 ms 23944 KB n=500
46 Correct 23 ms 23928 KB n=500
47 Correct 23 ms 24004 KB n=500
48 Correct 20 ms 23928 KB n=500
49 Correct 20 ms 23928 KB n=500
50 Correct 20 ms 23956 KB n=500
51 Correct 24 ms 24056 KB n=500
52 Correct 23 ms 24056 KB n=500
53 Correct 20 ms 23928 KB n=500
54 Correct 19 ms 23928 KB n=500
55 Correct 19 ms 23928 KB n=278
56 Correct 19 ms 23928 KB n=500
57 Correct 19 ms 23928 KB n=500
58 Correct 19 ms 23928 KB n=500
59 Correct 22 ms 24440 KB n=2000
60 Correct 21 ms 24568 KB n=2000
61 Correct 22 ms 24440 KB n=2000
62 Correct 23 ms 24440 KB n=2000
63 Correct 23 ms 24572 KB n=2000
64 Correct 23 ms 24440 KB n=2000
65 Correct 22 ms 24412 KB n=2000
66 Correct 21 ms 24440 KB n=2000
67 Correct 23 ms 24440 KB n=2000
68 Correct 22 ms 24440 KB n=2000
69 Correct 23 ms 24440 KB n=2000
70 Correct 22 ms 24440 KB n=2000
71 Correct 22 ms 24504 KB n=2000
72 Correct 21 ms 24440 KB n=2000
73 Correct 46 ms 24440 KB n=2000
74 Correct 22 ms 24384 KB n=1844
75 Correct 21 ms 24440 KB n=2000
76 Correct 37 ms 24568 KB n=2000
77 Correct 22 ms 24440 KB n=2000
78 Correct 23 ms 24440 KB n=2000
79 Correct 23 ms 24440 KB n=2000
80 Correct 23 ms 24584 KB n=2000
81 Correct 22 ms 24440 KB n=2000
82 Correct 55 ms 24440 KB n=2000
83 Correct 23 ms 24568 KB n=2000
84 Correct 22 ms 24440 KB n=2000
85 Correct 23 ms 24552 KB n=2000
86 Correct 23 ms 24440 KB n=2000
87 Correct 23 ms 24440 KB n=2000
88 Correct 22 ms 24568 KB n=2000
89 Correct 22 ms 24568 KB n=2000
90 Correct 21 ms 24568 KB n=2000
91 Correct 22 ms 24440 KB n=2000
92 Correct 1084 ms 91420 KB n=200000
93 Correct 1123 ms 96348 KB n=200000
94 Correct 871 ms 99792 KB n=200000
95 Correct 1002 ms 91444 KB n=200000
96 Correct 764 ms 91164 KB n=200000
97 Correct 799 ms 95612 KB n=200000
98 Correct 1154 ms 91368 KB n=200000
99 Correct 1271 ms 91400 KB n=200000
100 Correct 836 ms 91248 KB n=200000
101 Correct 889 ms 101072 KB n=200000
102 Correct 454 ms 92464 KB n=200000
103 Correct 524 ms 92632 KB n=200000
104 Correct 600 ms 92408 KB n=200000
105 Correct 471 ms 92856 KB n=200000
106 Correct 630 ms 93048 KB n=200000
107 Correct 618 ms 92792 KB n=200000
108 Correct 1133 ms 91484 KB n=200000
109 Correct 1118 ms 91344 KB n=200000
110 Correct 931 ms 91448 KB n=200000
111 Correct 810 ms 90736 KB n=200000
112 Correct 796 ms 100048 KB n=200000
113 Correct 925 ms 95408 KB n=200000
114 Correct 954 ms 90956 KB n=200000
115 Correct 1222 ms 93412 KB n=200000
116 Correct 1089 ms 91380 KB n=200000
117 Correct 939 ms 100392 KB n=200000
118 Correct 1166 ms 94392 KB n=200000
119 Correct 927 ms 91460 KB n=200000
120 Correct 724 ms 99980 KB n=200000
121 Correct 687 ms 100008 KB n=200000
122 Correct 883 ms 100356 KB n=200000
123 Correct 494 ms 92716 KB n=200000
124 Correct 181 ms 40824 KB n=25264