답안 #1028922

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1028922	2024-07-20T10:21:33 Z	vjudge1	Osumnjičeni (COCI21_osumnjiceni)	C++17	110 / 110	538 ms	31272 KB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long
int const N=2e5+5;
int const mod=1e9+7;

set<pair<int,int>> st;
pair<int,int> a[N];
int par[N][18];

bool check(int i){
    if(st.find(a[i])!=st.end())
        return 0;
    st.insert(a[i]);
    auto p=st.lower_bound(a[i]);
    p++;
    bool ok=1;
    if(p!=st.end()){
        auto nxt=*p;
        if(nxt.first<=a[i].second)
            ok=0;
    }
    p--;
    if(p!=st.begin()){
        p--;
        auto nxt=*p;
        if(nxt.second>=a[i].first)
            ok=0;
    }
    if(ok==0)
        st.erase(a[i]);
    return ok;
}

int main(){
    int n;
    cin>>n;
    for (int i = 1; i <=n; ++i)
        cin>>a[i].first>>a[i].second;
    int j=1;
    for(int i=1;i<=n;i++){
        while(j<=n and check(j))
            j++;
        par[i][0]=j;
        // cout<<j<<' ';
        st.erase(a[i]);
    }
    // cout<<endl;
    par[n+1][0]=n+1;
    for(int p=1;p<18;p++)
        for(int i=1;i<=n+1;i++)
            par[i][p]=par[par[i][p-1]][p-1];
    int q;
    cin>>q;
    while(q--){
        int u,v;
        cin>>u>>v;
        int ans=0;
        for(int p=17;p>=0;p--){
            // cout<<u<<' ';
            if(par[u][p]<=v){
                u=par[u][p];
                ans+=(1<<p);
            }
        }
        // cout<<endl;
        cout<<ans+1<<endl;
    }
    return 0;
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	136 ms	19616 KB	Output is correct
2	Correct	121 ms	19628 KB	Output is correct
3	Correct	133 ms	19556 KB	Output is correct
4	Correct	125 ms	19620 KB	Output is correct
5	Correct	130 ms	19900 KB	Output is correct
6	Correct	111 ms	19308 KB	Output is correct
7	Correct	125 ms	19364 KB	Output is correct
8	Correct	131 ms	19480 KB	Output is correct
9	Correct	115 ms	19452 KB	Output is correct
10	Correct	115 ms	19284 KB	Output is correct
11	Correct	235 ms	28224 KB	Output is correct
12	Correct	244 ms	27472 KB	Output is correct
13	Correct	223 ms	26192 KB	Output is correct
14	Correct	235 ms	24044 KB	Output is correct
15	Correct	224 ms	22916 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	118 ms	19284 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	820 KB	Output is correct
2	Correct	10 ms	860 KB	Output is correct
3	Correct	9 ms	964 KB	Output is correct
4	Correct	9 ms	2908 KB	Output is correct
5	Correct	9 ms	860 KB	Output is correct
6	Correct	9 ms	824 KB	Output is correct
7	Correct	12 ms	2868 KB	Output is correct
8	Correct	9 ms	860 KB	Output is correct
9	Correct	11 ms	856 KB	Output is correct
10	Correct	12 ms	856 KB	Output is correct
11	Correct	8 ms	976 KB	Output is correct
12	Correct	11 ms	1116 KB	Output is correct
13	Correct	13 ms	1156 KB	Output is correct
14	Correct	15 ms	1048 KB	Output is correct
15	Correct	12 ms	1032 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	10 ms	1120 KB	Output is correct

Subtask #3

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	10 ms	820 KB	Output is correct
2	Correct	10 ms	860 KB	Output is correct
3	Correct	9 ms	964 KB	Output is correct
4	Correct	9 ms	2908 KB	Output is correct
5	Correct	9 ms	860 KB	Output is correct
6	Correct	9 ms	824 KB	Output is correct
7	Correct	12 ms	2868 KB	Output is correct
8	Correct	9 ms	860 KB	Output is correct
9	Correct	11 ms	856 KB	Output is correct
10	Correct	12 ms	856 KB	Output is correct
11	Correct	8 ms	976 KB	Output is correct
12	Correct	11 ms	1116 KB	Output is correct
13	Correct	13 ms	1156 KB	Output is correct
14	Correct	15 ms	1048 KB	Output is correct
15	Correct	12 ms	1032 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	10 ms	1120 KB	Output is correct
18	Correct	273 ms	5420 KB	Output is correct
19	Correct	262 ms	3156 KB	Output is correct
20	Correct	304 ms	3632 KB	Output is correct
21	Correct	254 ms	3412 KB	Output is correct
22	Correct	275 ms	3412 KB	Output is correct
23	Correct	242 ms	3412 KB	Output is correct
24	Correct	251 ms	3408 KB	Output is correct
25	Correct	247 ms	3408 KB	Output is correct
26	Correct	232 ms	3364 KB	Output is correct
27	Correct	260 ms	3232 KB	Output is correct
28	Correct	213 ms	3152 KB	Output is correct
29	Correct	232 ms	3204 KB	Output is correct
30	Correct	224 ms	5204 KB	Output is correct
31	Correct	215 ms	2900 KB	Output is correct
32	Correct	219 ms	3148 KB	Output is correct
33	Correct	0 ms	2396 KB	Output is correct
34	Correct	231 ms	5272 KB	Output is correct

Subtask #4

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	105 ms	19824 KB	Output is correct
2	Correct	103 ms	19280 KB	Output is correct
3	Correct	93 ms	19480 KB	Output is correct
4	Correct	94 ms	19284 KB	Output is correct
5	Correct	105 ms	19536 KB	Output is correct
6	Correct	94 ms	19368 KB	Output is correct
7	Correct	110 ms	19356 KB	Output is correct
8	Correct	100 ms	19280 KB	Output is correct
9	Correct	100 ms	19280 KB	Output is correct
10	Correct	114 ms	19648 KB	Output is correct
11	Correct	225 ms	27324 KB	Output is correct
12	Correct	231 ms	28500 KB	Output is correct
13	Correct	197 ms	27220 KB	Output is correct
14	Correct	237 ms	23124 KB	Output is correct
15	Correct	231 ms	24404 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	103 ms	18420 KB	Output is correct

Subtask #5

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	136 ms	19616 KB	Output is correct
2	Correct	121 ms	19628 KB	Output is correct
3	Correct	133 ms	19556 KB	Output is correct
4	Correct	125 ms	19620 KB	Output is correct
5	Correct	130 ms	19900 KB	Output is correct
6	Correct	111 ms	19308 KB	Output is correct
7	Correct	125 ms	19364 KB	Output is correct
8	Correct	131 ms	19480 KB	Output is correct
9	Correct	115 ms	19452 KB	Output is correct
10	Correct	115 ms	19284 KB	Output is correct
11	Correct	235 ms	28224 KB	Output is correct
12	Correct	244 ms	27472 KB	Output is correct
13	Correct	223 ms	26192 KB	Output is correct
14	Correct	235 ms	24044 KB	Output is correct
15	Correct	224 ms	22916 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	118 ms	19284 KB	Output is correct
18	Correct	10 ms	820 KB	Output is correct
19	Correct	10 ms	860 KB	Output is correct
20	Correct	9 ms	964 KB	Output is correct
21	Correct	9 ms	2908 KB	Output is correct
22	Correct	9 ms	860 KB	Output is correct
23	Correct	9 ms	824 KB	Output is correct
24	Correct	12 ms	2868 KB	Output is correct
25	Correct	9 ms	860 KB	Output is correct
26	Correct	11 ms	856 KB	Output is correct
27	Correct	12 ms	856 KB	Output is correct
28	Correct	8 ms	976 KB	Output is correct
29	Correct	11 ms	1116 KB	Output is correct
30	Correct	13 ms	1156 KB	Output is correct
31	Correct	15 ms	1048 KB	Output is correct
32	Correct	12 ms	1032 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	10 ms	1120 KB	Output is correct
35	Correct	273 ms	5420 KB	Output is correct
36	Correct	262 ms	3156 KB	Output is correct
37	Correct	304 ms	3632 KB	Output is correct
38	Correct	254 ms	3412 KB	Output is correct
39	Correct	275 ms	3412 KB	Output is correct
40	Correct	242 ms	3412 KB	Output is correct
41	Correct	251 ms	3408 KB	Output is correct
42	Correct	247 ms	3408 KB	Output is correct
43	Correct	232 ms	3364 KB	Output is correct
44	Correct	260 ms	3232 KB	Output is correct
45	Correct	213 ms	3152 KB	Output is correct
46	Correct	232 ms	3204 KB	Output is correct
47	Correct	224 ms	5204 KB	Output is correct
48	Correct	215 ms	2900 KB	Output is correct
49	Correct	219 ms	3148 KB	Output is correct
50	Correct	0 ms	2396 KB	Output is correct
51	Correct	231 ms	5272 KB	Output is correct
52	Correct	105 ms	19824 KB	Output is correct
53	Correct	103 ms	19280 KB	Output is correct
54	Correct	93 ms	19480 KB	Output is correct
55	Correct	94 ms	19284 KB	Output is correct
56	Correct	105 ms	19536 KB	Output is correct
57	Correct	94 ms	19368 KB	Output is correct
58	Correct	110 ms	19356 KB	Output is correct
59	Correct	100 ms	19280 KB	Output is correct
60	Correct	100 ms	19280 KB	Output is correct
61	Correct	114 ms	19648 KB	Output is correct
62	Correct	225 ms	27324 KB	Output is correct
63	Correct	231 ms	28500 KB	Output is correct
64	Correct	197 ms	27220 KB	Output is correct
65	Correct	237 ms	23124 KB	Output is correct
66	Correct	231 ms	24404 KB	Output is correct
67	Correct	0 ms	2396 KB	Output is correct
68	Correct	103 ms	18420 KB	Output is correct
69	Correct	468 ms	22084 KB	Output is correct
70	Correct	494 ms	23124 KB	Output is correct
71	Correct	509 ms	22612 KB	Output is correct
72	Correct	526 ms	22860 KB	Output is correct
73	Correct	502 ms	23072 KB	Output is correct
74	Correct	538 ms	23380 KB	Output is correct
75	Correct	494 ms	23080 KB	Output is correct
76	Correct	475 ms	23328 KB	Output is correct
77	Correct	420 ms	22672 KB	Output is correct
78	Correct	419 ms	23064 KB	Output is correct
79	Correct	448 ms	31272 KB	Output is correct
80	Correct	415 ms	30292 KB	Output is correct
81	Correct	438 ms	30108 KB	Output is correct
82	Correct	486 ms	25940 KB	Output is correct
83	Correct	431 ms	25564 KB	Output is correct
84	Correct	0 ms	2392 KB	Output is correct
85	Correct	342 ms	21588 KB	Output is correct