답안 #906409

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
906409	2024-01-14T08:00:20 Z	Darren0724	Joker (BOI20_joker)	C++17	100 / 100	512 ms	19712 KB

Joker

#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define all(x) x.begin(), x.end()
const int N=200005;
const int M=500005;
const int INF=1e9;
const int mod=1e9+7;
vector<int> e1(N<<1),e2(N<<1);
vector<int> pa(N<<1),sz(N<<1,1);
vector<int> dp(N);
vector<tuple<int,int,int,int>> st;
vector<int> st1;
int valid=0;
int n,m,q;
int Find(int k){
    if(pa[k]==k){
        return k;
    }
    return Find(pa[k]);
}
void onion2(int a,int b){
    a=Find(a);
    b=Find(b);
    if(a==b){
        return;
    }
    if(sz[a]>sz[b]){
        swap(a,b);
    }
    st.push_back({a,pa[a],b,sz[b]});
    pa[a]=b;
    sz[b]+=sz[a];
}
int onion1(int a,int b){
    onion2(a,b+N);
    onion2(a+N,b);
    while(st.size()>st1.size()){
        st1.push_back(valid);
    }
    valid|=(Find(a)==Find(a+N));
    return valid;
}
int onion(int i){
    return onion1(e1[i],e2[i]);
}
void undo(){
    auto [a,b,c,d]=st.back();
    st.pop_back();
    pa[a]=b;
    sz[c]=d;
    valid=st1.back();
    st1.pop_back();
}
// | 1 2 3 4 | 5 6 7 8 
void dc(int l,int r,int a,int b){
    if(r<l)return;
    b=min(m,b);
    //cout<<l<<' '<<r<<' '<<a<<' '<<b<<endl;
    int mi=(l+r)>>1;
    int rec1=st.size();
    for(int i=l;i<mi;i++){
        onion(i);
    }
    int rec=st.size();
    if(valid){
        //cout<<mi<<endl;
        dp[mi]=b+1;
    }
    else{
        int last=b;
        for(int i=b;i>=a;i--){
            if(onion(i)){
                break;
            }
            last--;
        }
        dp[mi]=last;
    }
    while(st.size()>rec){
        undo();
    }
    onion(mi);
    dc(mi+1,r,dp[mi],b);
    while(st.size()>rec1){
        undo();
    }
    for(int i=b;i>dp[mi];i--){
        onion(i);
    }
    dc(l,mi-1,a,dp[mi]);
    while(st.size()>rec1){
        undo();
    }
}
int32_t main() {
    LCBorz;
    iota(all(pa),0);
    cin>>n>>m>>q;
    for(int i=1;i<=m;i++){
        cin>>e1[i]>>e2[i];
    }
    dc(1,m,1,m);
    for(int i=1;i<m;i++){
        assert(dp[i]<=dp[i+1]);
    }
    for(int i=0;i<q;i++){
        int a,b;cin>>a>>b;
        if(b>=dp[a]){
            cout<<"NO"<<endl;
        }
        else{
            cout<<"YES"<<endl;
        }
    }
    
    return 0;
}

Compilation message

Joker.cpp: In function 'void dc(int, int, int, int)':
Joker.cpp:80:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::tuple<int, int, int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   80 |     while(st.size()>rec){
      |           ~~~~~~~~~^~~~
Joker.cpp:85:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::tuple<int, int, int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   85 |     while(st.size()>rec1){
      |           ~~~~~~~~~^~~~~
Joker.cpp:92:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::tuple<int, int, int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   92 |     while(st.size()>rec1){
      |           ~~~~~~~~~^~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	3 ms	7516 KB	Output is correct
4	Correct	4 ms	7516 KB	Output is correct
5	Correct	3 ms	7516 KB	Output is correct
6	Correct	3 ms	7516 KB	Output is correct
7	Correct	4 ms	7516 KB	Output is correct
8	Correct	4 ms	7516 KB	Output is correct
9	Correct	5 ms	7380 KB	Output is correct
10	Correct	4 ms	7512 KB	Output is correct
11	Correct	4 ms	7516 KB	Output is correct
12	Correct	4 ms	7352 KB	Output is correct
13	Correct	4 ms	7512 KB	Output is correct
14	Correct	4 ms	7516 KB	Output is correct
15	Correct	4 ms	7516 KB	Output is correct
16	Correct	4 ms	7516 KB	Output is correct
17	Correct	4 ms	7516 KB	Output is correct
18	Correct	4 ms	7324 KB	Output is correct
19	Correct	5 ms	7512 KB	Output is correct
20	Correct	5 ms	7516 KB	Output is correct
21	Correct	4 ms	7512 KB	Output is correct
22	Correct	4 ms	7512 KB	Output is correct
23	Correct	4 ms	7512 KB	Output is correct
24	Correct	4 ms	7512 KB	Output is correct
25	Correct	4 ms	7516 KB	Output is correct
26	Correct	4 ms	7516 KB	Output is correct
27	Correct	4 ms	7516 KB	Output is correct
28	Correct	4 ms	7544 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	3 ms	7516 KB	Output is correct
4	Correct	4 ms	7516 KB	Output is correct
5	Correct	3 ms	7516 KB	Output is correct
6	Correct	3 ms	7516 KB	Output is correct
7	Correct	4 ms	7516 KB	Output is correct
8	Correct	4 ms	7516 KB	Output is correct
9	Correct	5 ms	7380 KB	Output is correct
10	Correct	4 ms	7512 KB	Output is correct
11	Correct	4 ms	7516 KB	Output is correct
12	Correct	4 ms	7352 KB	Output is correct
13	Correct	4 ms	7512 KB	Output is correct
14	Correct	4 ms	7516 KB	Output is correct
15	Correct	4 ms	7516 KB	Output is correct
16	Correct	4 ms	7516 KB	Output is correct
17	Correct	4 ms	7516 KB	Output is correct
18	Correct	4 ms	7324 KB	Output is correct
19	Correct	5 ms	7512 KB	Output is correct
20	Correct	5 ms	7516 KB	Output is correct
21	Correct	4 ms	7512 KB	Output is correct
22	Correct	4 ms	7512 KB	Output is correct
23	Correct	4 ms	7512 KB	Output is correct
24	Correct	4 ms	7512 KB	Output is correct
25	Correct	4 ms	7516 KB	Output is correct
26	Correct	4 ms	7516 KB	Output is correct
27	Correct	4 ms	7516 KB	Output is correct
28	Correct	4 ms	7544 KB	Output is correct
29	Correct	6 ms	7516 KB	Output is correct
30	Correct	7 ms	7516 KB	Output is correct
31	Correct	7 ms	7512 KB	Output is correct
32	Correct	8 ms	7516 KB	Output is correct
33	Correct	7 ms	7516 KB	Output is correct
34	Correct	7 ms	7516 KB	Output is correct
35	Correct	7 ms	7512 KB	Output is correct
36	Correct	7 ms	7516 KB	Output is correct
37	Correct	8 ms	7516 KB	Output is correct
38	Correct	8 ms	7516 KB	Output is correct
39	Correct	7 ms	7528 KB	Output is correct
40	Correct	7 ms	7516 KB	Output is correct
41	Correct	10 ms	7768 KB	Output is correct
42	Correct	7 ms	7512 KB	Output is correct
43	Correct	7 ms	7516 KB	Output is correct
44	Correct	7 ms	7596 KB	Output is correct
45	Correct	8 ms	7516 KB	Output is correct
46	Correct	7 ms	7516 KB	Output is correct
47	Correct	7 ms	7516 KB	Output is correct
48	Correct	7 ms	7516 KB	Output is correct
49	Correct	8 ms	7512 KB	Output is correct
50	Correct	7 ms	7516 KB	Output is correct
51	Correct	7 ms	7340 KB	Output is correct
52	Correct	8 ms	7448 KB	Output is correct
53	Correct	7 ms	7516 KB	Output is correct
54	Correct	7 ms	7524 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	382 ms	13832 KB	Output is correct
4	Correct	488 ms	18100 KB	Output is correct
5	Correct	364 ms	18692 KB	Output is correct
6	Correct	402 ms	13308 KB	Output is correct
7	Correct	400 ms	13068 KB	Output is correct
8	Correct	414 ms	11012 KB	Output is correct
9	Correct	432 ms	13828 KB	Output is correct
10	Correct	482 ms	18428 KB	Output is correct
11	Correct	446 ms	14512 KB	Output is correct
12	Correct	437 ms	17920 KB	Output is correct
13	Correct	385 ms	8960 KB	Output is correct
14	Correct	416 ms	10792 KB	Output is correct
15	Correct	479 ms	18940 KB	Output is correct
16	Correct	480 ms	17916 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	3 ms	7516 KB	Output is correct
4	Correct	4 ms	7516 KB	Output is correct
5	Correct	3 ms	7516 KB	Output is correct
6	Correct	3 ms	7516 KB	Output is correct
7	Correct	4 ms	7516 KB	Output is correct
8	Correct	4 ms	7516 KB	Output is correct
9	Correct	5 ms	7380 KB	Output is correct
10	Correct	4 ms	7512 KB	Output is correct
11	Correct	4 ms	7516 KB	Output is correct
12	Correct	4 ms	7352 KB	Output is correct
13	Correct	4 ms	7512 KB	Output is correct
14	Correct	4 ms	7516 KB	Output is correct
15	Correct	4 ms	7516 KB	Output is correct
16	Correct	4 ms	7516 KB	Output is correct
17	Correct	4 ms	7516 KB	Output is correct
18	Correct	4 ms	7324 KB	Output is correct
19	Correct	5 ms	7512 KB	Output is correct
20	Correct	5 ms	7516 KB	Output is correct
21	Correct	4 ms	7512 KB	Output is correct
22	Correct	4 ms	7512 KB	Output is correct
23	Correct	4 ms	7512 KB	Output is correct
24	Correct	4 ms	7512 KB	Output is correct
25	Correct	4 ms	7516 KB	Output is correct
26	Correct	4 ms	7516 KB	Output is correct
27	Correct	4 ms	7516 KB	Output is correct
28	Correct	4 ms	7544 KB	Output is correct
29	Correct	382 ms	13832 KB	Output is correct
30	Correct	488 ms	18100 KB	Output is correct
31	Correct	364 ms	18692 KB	Output is correct
32	Correct	402 ms	13308 KB	Output is correct
33	Correct	400 ms	13068 KB	Output is correct
34	Correct	414 ms	11012 KB	Output is correct
35	Correct	432 ms	13828 KB	Output is correct
36	Correct	482 ms	18428 KB	Output is correct
37	Correct	446 ms	14512 KB	Output is correct
38	Correct	437 ms	17920 KB	Output is correct
39	Correct	385 ms	8960 KB	Output is correct
40	Correct	416 ms	10792 KB	Output is correct
41	Correct	479 ms	18940 KB	Output is correct
42	Correct	480 ms	17916 KB	Output is correct
43	Correct	383 ms	13076 KB	Output is correct
44	Correct	485 ms	18464 KB	Output is correct
45	Correct	477 ms	19312 KB	Output is correct
46	Correct	387 ms	13324 KB	Output is correct
47	Correct	389 ms	13584 KB	Output is correct
48	Correct	462 ms	13824 KB	Output is correct
49	Correct	490 ms	18428 KB	Output is correct
50	Correct	387 ms	14084 KB	Output is correct
51	Correct	433 ms	18176 KB	Output is correct
52	Correct	448 ms	19004 KB	Output is correct
53	Correct	397 ms	9060 KB	Output is correct
54	Correct	437 ms	13320 KB	Output is correct
55	Correct	474 ms	19400 KB	Output is correct
56	Correct	504 ms	19712 KB	Output is correct

Subtask #5
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	3 ms	7516 KB	Output is correct
4	Correct	4 ms	7516 KB	Output is correct
5	Correct	3 ms	7516 KB	Output is correct
6	Correct	3 ms	7516 KB	Output is correct
7	Correct	4 ms	7516 KB	Output is correct
8	Correct	4 ms	7516 KB	Output is correct
9	Correct	5 ms	7380 KB	Output is correct
10	Correct	4 ms	7512 KB	Output is correct
11	Correct	4 ms	7516 KB	Output is correct
12	Correct	4 ms	7352 KB	Output is correct
13	Correct	4 ms	7512 KB	Output is correct
14	Correct	4 ms	7516 KB	Output is correct
15	Correct	4 ms	7516 KB	Output is correct
16	Correct	4 ms	7516 KB	Output is correct
17	Correct	4 ms	7516 KB	Output is correct
18	Correct	4 ms	7324 KB	Output is correct
19	Correct	5 ms	7512 KB	Output is correct
20	Correct	5 ms	7516 KB	Output is correct
21	Correct	4 ms	7512 KB	Output is correct
22	Correct	4 ms	7512 KB	Output is correct
23	Correct	4 ms	7512 KB	Output is correct
24	Correct	4 ms	7512 KB	Output is correct
25	Correct	4 ms	7516 KB	Output is correct
26	Correct	4 ms	7516 KB	Output is correct
27	Correct	4 ms	7516 KB	Output is correct
28	Correct	4 ms	7544 KB	Output is correct
29	Correct	6 ms	7516 KB	Output is correct
30	Correct	7 ms	7516 KB	Output is correct
31	Correct	7 ms	7512 KB	Output is correct
32	Correct	8 ms	7516 KB	Output is correct
33	Correct	7 ms	7516 KB	Output is correct
34	Correct	7 ms	7516 KB	Output is correct
35	Correct	7 ms	7512 KB	Output is correct
36	Correct	7 ms	7516 KB	Output is correct
37	Correct	8 ms	7516 KB	Output is correct
38	Correct	8 ms	7516 KB	Output is correct
39	Correct	7 ms	7528 KB	Output is correct
40	Correct	7 ms	7516 KB	Output is correct
41	Correct	10 ms	7768 KB	Output is correct
42	Correct	7 ms	7512 KB	Output is correct
43	Correct	7 ms	7516 KB	Output is correct
44	Correct	7 ms	7596 KB	Output is correct
45	Correct	8 ms	7516 KB	Output is correct
46	Correct	7 ms	7516 KB	Output is correct
47	Correct	7 ms	7516 KB	Output is correct
48	Correct	7 ms	7516 KB	Output is correct
49	Correct	8 ms	7512 KB	Output is correct
50	Correct	7 ms	7516 KB	Output is correct
51	Correct	7 ms	7340 KB	Output is correct
52	Correct	8 ms	7448 KB	Output is correct
53	Correct	7 ms	7516 KB	Output is correct
54	Correct	7 ms	7524 KB	Output is correct
55	Correct	139 ms	13840 KB	Output is correct
56	Correct	233 ms	18832 KB	Output is correct
57	Correct	116 ms	19452 KB	Output is correct
58	Correct	151 ms	13312 KB	Output is correct
59	Correct	201 ms	14336 KB	Output is correct
60	Correct	256 ms	17920 KB	Output is correct
61	Correct	187 ms	12804 KB	Output is correct
62	Correct	193 ms	17756 KB	Output is correct
63	Correct	149 ms	10008 KB	Output is correct
64	Correct	220 ms	14344 KB	Output is correct
65	Correct	252 ms	17660 KB	Output is correct

Subtask #6
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7516 KB	Output is correct
2	Correct	3 ms	7516 KB	Output is correct
3	Correct	3 ms	7516 KB	Output is correct
4	Correct	4 ms	7516 KB	Output is correct
5	Correct	3 ms	7516 KB	Output is correct
6	Correct	3 ms	7516 KB	Output is correct
7	Correct	4 ms	7516 KB	Output is correct
8	Correct	4 ms	7516 KB	Output is correct
9	Correct	5 ms	7380 KB	Output is correct
10	Correct	4 ms	7512 KB	Output is correct
11	Correct	4 ms	7516 KB	Output is correct
12	Correct	4 ms	7352 KB	Output is correct
13	Correct	4 ms	7512 KB	Output is correct
14	Correct	4 ms	7516 KB	Output is correct
15	Correct	4 ms	7516 KB	Output is correct
16	Correct	4 ms	7516 KB	Output is correct
17	Correct	4 ms	7516 KB	Output is correct
18	Correct	4 ms	7324 KB	Output is correct
19	Correct	5 ms	7512 KB	Output is correct
20	Correct	5 ms	7516 KB	Output is correct
21	Correct	4 ms	7512 KB	Output is correct
22	Correct	4 ms	7512 KB	Output is correct
23	Correct	4 ms	7512 KB	Output is correct
24	Correct	4 ms	7512 KB	Output is correct
25	Correct	4 ms	7516 KB	Output is correct
26	Correct	4 ms	7516 KB	Output is correct
27	Correct	4 ms	7516 KB	Output is correct
28	Correct	4 ms	7544 KB	Output is correct
29	Correct	6 ms	7516 KB	Output is correct
30	Correct	7 ms	7516 KB	Output is correct
31	Correct	7 ms	7512 KB	Output is correct
32	Correct	8 ms	7516 KB	Output is correct
33	Correct	7 ms	7516 KB	Output is correct
34	Correct	7 ms	7516 KB	Output is correct
35	Correct	7 ms	7512 KB	Output is correct
36	Correct	7 ms	7516 KB	Output is correct
37	Correct	8 ms	7516 KB	Output is correct
38	Correct	8 ms	7516 KB	Output is correct
39	Correct	7 ms	7528 KB	Output is correct
40	Correct	7 ms	7516 KB	Output is correct
41	Correct	10 ms	7768 KB	Output is correct
42	Correct	7 ms	7512 KB	Output is correct
43	Correct	7 ms	7516 KB	Output is correct
44	Correct	7 ms	7596 KB	Output is correct
45	Correct	8 ms	7516 KB	Output is correct
46	Correct	7 ms	7516 KB	Output is correct
47	Correct	7 ms	7516 KB	Output is correct
48	Correct	7 ms	7516 KB	Output is correct
49	Correct	8 ms	7512 KB	Output is correct
50	Correct	7 ms	7516 KB	Output is correct
51	Correct	7 ms	7340 KB	Output is correct
52	Correct	8 ms	7448 KB	Output is correct
53	Correct	7 ms	7516 KB	Output is correct
54	Correct	7 ms	7524 KB	Output is correct
55	Correct	382 ms	13832 KB	Output is correct
56	Correct	488 ms	18100 KB	Output is correct
57	Correct	364 ms	18692 KB	Output is correct
58	Correct	402 ms	13308 KB	Output is correct
59	Correct	400 ms	13068 KB	Output is correct
60	Correct	414 ms	11012 KB	Output is correct
61	Correct	432 ms	13828 KB	Output is correct
62	Correct	482 ms	18428 KB	Output is correct
63	Correct	446 ms	14512 KB	Output is correct
64	Correct	437 ms	17920 KB	Output is correct
65	Correct	385 ms	8960 KB	Output is correct
66	Correct	416 ms	10792 KB	Output is correct
67	Correct	479 ms	18940 KB	Output is correct
68	Correct	480 ms	17916 KB	Output is correct
69	Correct	383 ms	13076 KB	Output is correct
70	Correct	485 ms	18464 KB	Output is correct
71	Correct	477 ms	19312 KB	Output is correct
72	Correct	387 ms	13324 KB	Output is correct
73	Correct	389 ms	13584 KB	Output is correct
74	Correct	462 ms	13824 KB	Output is correct
75	Correct	490 ms	18428 KB	Output is correct
76	Correct	387 ms	14084 KB	Output is correct
77	Correct	433 ms	18176 KB	Output is correct
78	Correct	448 ms	19004 KB	Output is correct
79	Correct	397 ms	9060 KB	Output is correct
80	Correct	437 ms	13320 KB	Output is correct
81	Correct	474 ms	19400 KB	Output is correct
82	Correct	504 ms	19712 KB	Output is correct
83	Correct	139 ms	13840 KB	Output is correct
84	Correct	233 ms	18832 KB	Output is correct
85	Correct	116 ms	19452 KB	Output is correct
86	Correct	151 ms	13312 KB	Output is correct
87	Correct	201 ms	14336 KB	Output is correct
88	Correct	256 ms	17920 KB	Output is correct
89	Correct	187 ms	12804 KB	Output is correct
90	Correct	193 ms	17756 KB	Output is correct
91	Correct	149 ms	10008 KB	Output is correct
92	Correct	220 ms	14344 KB	Output is correct
93	Correct	252 ms	17660 KB	Output is correct
94	Correct	386 ms	13824 KB	Output is correct
95	Correct	434 ms	18444 KB	Output is correct
96	Correct	352 ms	18028 KB	Output is correct
97	Correct	409 ms	14344 KB	Output is correct
98	Correct	403 ms	13048 KB	Output is correct
99	Correct	413 ms	11100 KB	Output is correct
100	Correct	476 ms	18844 KB	Output is correct
101	Correct	400 ms	14092 KB	Output is correct
102	Correct	443 ms	18680 KB	Output is correct
103	Correct	477 ms	18936 KB	Output is correct
104	Correct	406 ms	10240 KB	Output is correct
105	Correct	488 ms	14336 KB	Output is correct
106	Correct	512 ms	17920 KB	Output is correct
107	Correct	340 ms	18424 KB	Output is correct
108	Correct	386 ms	13644 KB	Output is correct
109	Correct	386 ms	13072 KB	Output is correct
110	Correct	409 ms	13832 KB	Output is correct
111	Correct	372 ms	13840 KB	Output is correct
112	Correct	398 ms	13840 KB	Output is correct
113	Correct	380 ms	13312 KB	Output is correct
114	Correct	382 ms	13568 KB	Output is correct
115	Correct	374 ms	12968 KB	Output is correct
116	Correct	382 ms	12820 KB	Output is correct

답안 #906409

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 25.0 / 25.0

Subtask #4 10.0 / 10.0

Subtask #5 22.0 / 22.0

Subtask #6 29.0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
25.0 / 25.0

Subtask #4
10.0 / 10.0

Subtask #5
22.0 / 22.0

Subtask #6
29.0 / 29.0