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Submission #745205

# Submission time Handle Problem Language Result Execution time Memory
745205 2023-05-19T14:48:18 Z Ahmed57 Osumnjičeni (COCI21_osumnjiceni) C++17
110 / 110
 722 ms 42188 KB 
//LCA
#include <bits/stdc++.h>

using namespace std;
int P[200001][18];
int main(){
    int n;
    cin>>n;
    for(int i = 0;i<=n;i++)P[i][0]= n;
    multiset<pair<pair<int,int>,int>> s;
    set<int> ind;
    for(int i = 0;i<n;i++)ind.insert(i);
    for(int i = 0;i<n;i++){
        int a,b;cin>>a>>b;
        int ma = -1;
        pair<pair<int,int>,int> p = {{a,0},0};
        auto it = s.lower_bound(p);
        if(it!=s.begin()){
            it--;
            if((*it).first.second>=a){
                ma = max(ma,(*it).second);
                s.erase(it);
            }
        }
        it = s.lower_bound(p);
        while(it!=s.end()&&(*it).first.first<=b){
            ma = max(ma,(*it).second);
            s.erase(it);
            it = s.lower_bound(p);
        }
        p.second = i;
        p.first.second = b;
        s.insert(p);
        while(!ind.empty()&&(*ind.begin())<=ma){
            P[(*ind.begin())][0] = i;
            ind.erase(ind.begin());
        }
    }
    for(int i = n;i>=0;i--){
        for(int j= 1;j<=17;j++){
            P[i][j] = P[P[i][j-1]][j-1];
        }
    }
    int q;cin>>q;
    while(q--){
        int x,y;cin>>x>>y;
        x--;y--;
        long long sum = 0;
        for(int j = 17;j>=0;j--){
            if(P[x][j]<=y){
                x = P[x][j];
                sum+=(1<<j);
            }
        }
        cout<<sum+1<<endl;
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 210 ms 22708 KB Output is correct
2 Correct 212 ms 25992 KB Output is correct
3 Correct 214 ms 26060 KB Output is correct
4 Correct 215 ms 26412 KB Output is correct
5 Correct 227 ms 27592 KB Output is correct
6 Correct 201 ms 25016 KB Output is correct
7 Correct 210 ms 25388 KB Output is correct
8 Correct 204 ms 25668 KB Output is correct
9 Correct 235 ms 26320 KB Output is correct
10 Correct 216 ms 25396 KB Output is correct
11 Correct 316 ms 38692 KB Output is correct
12 Correct 289 ms 36324 KB Output is correct
13 Correct 302 ms 36272 KB Output is correct
14 Correct 309 ms 33568 KB Output is correct
15 Correct 309 ms 32244 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 218 ms 26676 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 852 KB Output is correct
2 Correct 15 ms 960 KB Output is correct
3 Correct 15 ms 980 KB Output is correct
4 Correct 13 ms 980 KB Output is correct
5 Correct 13 ms 980 KB Output is correct
6 Correct 13 ms 1024 KB Output is correct
7 Correct 13 ms 980 KB Output is correct
8 Correct 13 ms 980 KB Output is correct
9 Correct 17 ms 992 KB Output is correct
10 Correct 15 ms 964 KB Output is correct
11 Correct 15 ms 1220 KB Output is correct
12 Correct 14 ms 1144 KB Output is correct
13 Correct 14 ms 1148 KB Output is correct
14 Correct 15 ms 1224 KB Output is correct
15 Correct 14 ms 1108 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 14 ms 1016 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 852 KB Output is correct
2 Correct 15 ms 960 KB Output is correct
3 Correct 15 ms 980 KB Output is correct
4 Correct 13 ms 980 KB Output is correct
5 Correct 13 ms 980 KB Output is correct
6 Correct 13 ms 1024 KB Output is correct
7 Correct 13 ms 980 KB Output is correct
8 Correct 13 ms 980 KB Output is correct
9 Correct 17 ms 992 KB Output is correct
10 Correct 15 ms 964 KB Output is correct
11 Correct 15 ms 1220 KB Output is correct
12 Correct 14 ms 1144 KB Output is correct
13 Correct 14 ms 1148 KB Output is correct
14 Correct 15 ms 1224 KB Output is correct
15 Correct 14 ms 1108 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 14 ms 1016 KB Output is correct
18 Correct 363 ms 2264 KB Output is correct
19 Correct 318 ms 2156 KB Output is correct
20 Correct 372 ms 2176 KB Output is correct
21 Correct 352 ms 2152 KB Output is correct
22 Correct 339 ms 2132 KB Output is correct
23 Correct 320 ms 2328 KB Output is correct
24 Correct 340 ms 2104 KB Output is correct
25 Correct 348 ms 2180 KB Output is correct
26 Correct 342 ms 2152 KB Output is correct
27 Correct 322 ms 2004 KB Output is correct
28 Correct 318 ms 2008 KB Output is correct
29 Correct 329 ms 1964 KB Output is correct
30 Correct 334 ms 2180 KB Output is correct
31 Correct 335 ms 1880 KB Output is correct
32 Correct 325 ms 2020 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 330 ms 2720 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 235 ms 23708 KB Output is correct
2 Correct 221 ms 26948 KB Output is correct
3 Correct 207 ms 25124 KB Output is correct
4 Correct 203 ms 24900 KB Output is correct
5 Correct 217 ms 25716 KB Output is correct
6 Correct 206 ms 25288 KB Output is correct
7 Correct 215 ms 25060 KB Output is correct
8 Correct 200 ms 25112 KB Output is correct
9 Correct 214 ms 24944 KB Output is correct
10 Correct 234 ms 26864 KB Output is correct
11 Correct 299 ms 35916 KB Output is correct
12 Correct 320 ms 39628 KB Output is correct
13 Correct 293 ms 35952 KB Output is correct
14 Correct 302 ms 31184 KB Output is correct
15 Correct 334 ms 34920 KB Output is correct
16 Correct 1 ms 304 KB Output is correct
17 Correct 214 ms 25692 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 210 ms 22708 KB Output is correct
2 Correct 212 ms 25992 KB Output is correct
3 Correct 214 ms 26060 KB Output is correct
4 Correct 215 ms 26412 KB Output is correct
5 Correct 227 ms 27592 KB Output is correct
6 Correct 201 ms 25016 KB Output is correct
7 Correct 210 ms 25388 KB Output is correct
8 Correct 204 ms 25668 KB Output is correct
9 Correct 235 ms 26320 KB Output is correct
10 Correct 216 ms 25396 KB Output is correct
11 Correct 316 ms 38692 KB Output is correct
12 Correct 289 ms 36324 KB Output is correct
13 Correct 302 ms 36272 KB Output is correct
14 Correct 309 ms 33568 KB Output is correct
15 Correct 309 ms 32244 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 218 ms 26676 KB Output is correct
18 Correct 16 ms 852 KB Output is correct
19 Correct 15 ms 960 KB Output is correct
20 Correct 15 ms 980 KB Output is correct
21 Correct 13 ms 980 KB Output is correct
22 Correct 13 ms 980 KB Output is correct
23 Correct 13 ms 1024 KB Output is correct
24 Correct 13 ms 980 KB Output is correct
25 Correct 13 ms 980 KB Output is correct
26 Correct 17 ms 992 KB Output is correct
27 Correct 15 ms 964 KB Output is correct
28 Correct 15 ms 1220 KB Output is correct
29 Correct 14 ms 1144 KB Output is correct
30 Correct 14 ms 1148 KB Output is correct
31 Correct 15 ms 1224 KB Output is correct
32 Correct 14 ms 1108 KB Output is correct
33 Correct 1 ms 308 KB Output is correct
34 Correct 14 ms 1016 KB Output is correct
35 Correct 363 ms 2264 KB Output is correct
36 Correct 318 ms 2156 KB Output is correct
37 Correct 372 ms 2176 KB Output is correct
38 Correct 352 ms 2152 KB Output is correct
39 Correct 339 ms 2132 KB Output is correct
40 Correct 320 ms 2328 KB Output is correct
41 Correct 340 ms 2104 KB Output is correct
42 Correct 348 ms 2180 KB Output is correct
43 Correct 342 ms 2152 KB Output is correct
44 Correct 322 ms 2004 KB Output is correct
45 Correct 318 ms 2008 KB Output is correct
46 Correct 329 ms 1964 KB Output is correct
47 Correct 334 ms 2180 KB Output is correct
48 Correct 335 ms 1880 KB Output is correct
49 Correct 325 ms 2020 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 330 ms 2720 KB Output is correct
52 Correct 235 ms 23708 KB Output is correct
53 Correct 221 ms 26948 KB Output is correct
54 Correct 207 ms 25124 KB Output is correct
55 Correct 203 ms 24900 KB Output is correct
56 Correct 217 ms 25716 KB Output is correct
57 Correct 206 ms 25288 KB Output is correct
58 Correct 215 ms 25060 KB Output is correct
59 Correct 200 ms 25112 KB Output is correct
60 Correct 214 ms 24944 KB Output is correct
61 Correct 234 ms 26864 KB Output is correct
62 Correct 299 ms 35916 KB Output is correct
63 Correct 320 ms 39628 KB Output is correct
64 Correct 293 ms 35952 KB Output is correct
65 Correct 302 ms 31184 KB Output is correct
66 Correct 334 ms 34920 KB Output is correct
67 Correct 1 ms 304 KB Output is correct
68 Correct 214 ms 25692 KB Output is correct
69 Correct 690 ms 29224 KB Output is correct
70 Correct 708 ms 30676 KB Output is correct
71 Correct 668 ms 28260 KB Output is correct
72 Correct 666 ms 29788 KB Output is correct
73 Correct 692 ms 29356 KB Output is correct
74 Correct 697 ms 30880 KB Output is correct
75 Correct 719 ms 28748 KB Output is correct
76 Correct 708 ms 31060 KB Output is correct
77 Correct 690 ms 28600 KB Output is correct
78 Correct 710 ms 29184 KB Output is correct
79 Correct 722 ms 42188 KB Output is correct
80 Correct 698 ms 39036 KB Output is correct
81 Correct 654 ms 38740 KB Output is correct
82 Correct 680 ms 34892 KB Output is correct
83 Correct 639 ms 33848 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 567 ms 28756 KB Output is correct