oj.uz

Submission #837999

# Submission time Handle Problem Language Result Execution time Memory
837999 2023-08-26T03:57:44 Z 1075508020060209tc Joker (BOI20_joker) C++14
49 / 100
 2000 ms 8140 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")

#include <bits/stdc++.h>
using namespace std;
int n;int m;int Q;
int ar[400005];
int br[400005];
int uf[200005];
int isbip;
int sz[200005];
int ufv[200005];
stack<int>stk;
stack<int>stkv;
stack<int>stkbp;
inline int finv(int x){
if(uf[x]==x){return 0;}
return (ufv[x]+finv(uf[x]))&1;
}
inline int fin(int x){
if(uf[x]==x){return x;}
int v=(ufv[x]+finv(uf[x]))&1;
ufv[x]=v;
uf[x]=fin(uf[x]);
return uf[x];
}

inline void mrg(int a,int b){
int pa=fin(a);int pb=fin(b);
if(pa==pb){
  //  stk.push(0);stkbp.push(isbip);
    if(finv(a)==finv(b)){
        isbip=0;
    }
    return;
}
//stkbp.push(isbip);
if(sz[pa]<sz[pb]){swap(pa,pb);swap(a,b);}
int va=finv(a);int vb=finv(b);
if(va==vb){
   // stkv.push(1);
    ufv[pb]=1;
    uf[pb]=pa;
    sz[pa]+=sz[pb];
}else{
    //stkv.push(0);
    ufv[pb]=0;
    uf[pb]=pa;
    sz[pa]+=sz[pb];
}
//stk.push(pb);
}
void rollback(){
int pb=stk.top();
if(pb==0){
    stk.pop();//stkv.pop();
    isbip=stkbp.top();
    stkbp.pop();
    return;
}
isbip=stkbp.top();
stk.pop();stkbp.pop();
int pa=uf[pb];
sz[pa]-=sz[pb];
uf[pb]=pb;
ufv[pb]=0;
}
int lar[200005];int rar[200005];int lpl[200005];

inline void precalc(){
for(int i=1;i<=n;i++){
    uf[i]=i;
    ufv[i]=0;
    sz[i]=1;
}
while(stk.size()){stk.pop();}
while(stkbp.size()){stkbp.pop();}

}
 int all;
inline void dolid(int lid){
precalc();
isbip=1;
lpl[lid]=0;
for(int i=m+lid-1+(lid==0);i>=lid-1+2*(lid==0);i--){
    mrg(ar[i],br[i]);
    if(!isbip){
        lpl[lid]=i;break;
    }
}
if(lid==0&&lpl[lid]==0){
    all=1;
}
}

signed main(){
cin.tie(0);
ios_base::sync_with_stdio(0);

cin>>n>>m>>Q;
for(int i=1;i<=m;i++){
    cin>>ar[i]>>br[i];
    ar[i+m]=ar[i];
    br[i+m]=br[i];
}
set<int>st;
for(int i=1;i<=Q;i++){
    cin>>lar[i]>>rar[i];
    st.insert(lar[i]);
}
dolid(0);
if(!all){
for(auto it=st.begin();it!=st.end();it++){
    int v=*it;
    dolid(v);
}}
for(int i=1;i<=Q;i++){
    if(rar[i]<lpl[lar[i]]){
        cout<<"YES\n";
    }else{
        cout<<"NO\n";
    }
}

}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 464 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 464 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 11 ms 468 KB Output is correct
31 Correct 12 ms 596 KB Output is correct
32 Correct 6 ms 468 KB Output is correct
33 Correct 4 ms 468 KB Output is correct
34 Correct 9 ms 468 KB Output is correct
35 Correct 11 ms 468 KB Output is correct
36 Correct 10 ms 468 KB Output is correct
37 Correct 19 ms 592 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 11 ms 468 KB Output is correct
40 Correct 7 ms 468 KB Output is correct
41 Correct 7 ms 468 KB Output is correct
42 Correct 6 ms 468 KB Output is correct
43 Correct 7 ms 488 KB Output is correct
44 Correct 8 ms 468 KB Output is correct
45 Correct 8 ms 468 KB Output is correct
46 Correct 11 ms 468 KB Output is correct
47 Correct 8 ms 468 KB Output is correct
48 Correct 8 ms 468 KB Output is correct
49 Correct 9 ms 468 KB Output is correct
50 Correct 14 ms 468 KB Output is correct
51 Correct 7 ms 492 KB Output is correct
52 Correct 8 ms 468 KB Output is correct
53 Correct 9 ms 468 KB Output is correct
54 Correct 10 ms 468 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 50 ms 6732 KB Output is correct
4 Correct 52 ms 7844 KB Output is correct
5 Correct 51 ms 7684 KB Output is correct
6 Correct 55 ms 6708 KB Output is correct
7 Correct 53 ms 6800 KB Output is correct
8 Correct 48 ms 6476 KB Output is correct
9 Correct 49 ms 6932 KB Output is correct
10 Correct 51 ms 8008 KB Output is correct
11 Correct 55 ms 6820 KB Output is correct
12 Correct 65 ms 7756 KB Output is correct
13 Correct 49 ms 5840 KB Output is correct
14 Correct 51 ms 6348 KB Output is correct
15 Correct 61 ms 7188 KB Output is correct
16 Correct 63 ms 7876 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 464 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 50 ms 6732 KB Output is correct
30 Correct 52 ms 7844 KB Output is correct
31 Correct 51 ms 7684 KB Output is correct
32 Correct 55 ms 6708 KB Output is correct
33 Correct 53 ms 6800 KB Output is correct
34 Correct 48 ms 6476 KB Output is correct
35 Correct 49 ms 6932 KB Output is correct
36 Correct 51 ms 8008 KB Output is correct
37 Correct 55 ms 6820 KB Output is correct
38 Correct 65 ms 7756 KB Output is correct
39 Correct 49 ms 5840 KB Output is correct
40 Correct 51 ms 6348 KB Output is correct
41 Correct 61 ms 7188 KB Output is correct
42 Correct 63 ms 7876 KB Output is correct
43 Correct 374 ms 6724 KB Output is correct
44 Correct 65 ms 7884 KB Output is correct
45 Correct 904 ms 7884 KB Output is correct
46 Correct 107 ms 6864 KB Output is correct
47 Correct 105 ms 6860 KB Output is correct
48 Correct 308 ms 6976 KB Output is correct
49 Correct 503 ms 8140 KB Output is correct
50 Correct 547 ms 6484 KB Output is correct
51 Correct 486 ms 7192 KB Output is correct
52 Correct 443 ms 7880 KB Output is correct
53 Correct 252 ms 5904 KB Output is correct
54 Correct 321 ms 6612 KB Output is correct
55 Correct 420 ms 7316 KB Output is correct
56 Correct 505 ms 8000 KB Output is correct

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 464 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 11 ms 468 KB Output is correct
31 Correct 12 ms 596 KB Output is correct
32 Correct 6 ms 468 KB Output is correct
33 Correct 4 ms 468 KB Output is correct
34 Correct 9 ms 468 KB Output is correct
35 Correct 11 ms 468 KB Output is correct
36 Correct 10 ms 468 KB Output is correct
37 Correct 19 ms 592 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 11 ms 468 KB Output is correct
40 Correct 7 ms 468 KB Output is correct
41 Correct 7 ms 468 KB Output is correct
42 Correct 6 ms 468 KB Output is correct
43 Correct 7 ms 488 KB Output is correct
44 Correct 8 ms 468 KB Output is correct
45 Correct 8 ms 468 KB Output is correct
46 Correct 11 ms 468 KB Output is correct
47 Correct 8 ms 468 KB Output is correct
48 Correct 8 ms 468 KB Output is correct
49 Correct 9 ms 468 KB Output is correct
50 Correct 14 ms 468 KB Output is correct
51 Correct 7 ms 492 KB Output is correct
52 Correct 8 ms 468 KB Output is correct
53 Correct 9 ms 468 KB Output is correct
54 Correct 10 ms 468 KB Output is correct
55 Execution timed out 2044 ms 5196 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 464 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 464 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 11 ms 468 KB Output is correct
31 Correct 12 ms 596 KB Output is correct
32 Correct 6 ms 468 KB Output is correct
33 Correct 4 ms 468 KB Output is correct
34 Correct 9 ms 468 KB Output is correct
35 Correct 11 ms 468 KB Output is correct
36 Correct 10 ms 468 KB Output is correct
37 Correct 19 ms 592 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 11 ms 468 KB Output is correct
40 Correct 7 ms 468 KB Output is correct
41 Correct 7 ms 468 KB Output is correct
42 Correct 6 ms 468 KB Output is correct
43 Correct 7 ms 488 KB Output is correct
44 Correct 8 ms 468 KB Output is correct
45 Correct 8 ms 468 KB Output is correct
46 Correct 11 ms 468 KB Output is correct
47 Correct 8 ms 468 KB Output is correct
48 Correct 8 ms 468 KB Output is correct
49 Correct 9 ms 468 KB Output is correct
50 Correct 14 ms 468 KB Output is correct
51 Correct 7 ms 492 KB Output is correct
52 Correct 8 ms 468 KB Output is correct
53 Correct 9 ms 468 KB Output is correct
54 Correct 10 ms 468 KB Output is correct
55 Correct 50 ms 6732 KB Output is correct
56 Correct 52 ms 7844 KB Output is correct
57 Correct 51 ms 7684 KB Output is correct
58 Correct 55 ms 6708 KB Output is correct
59 Correct 53 ms 6800 KB Output is correct
60 Correct 48 ms 6476 KB Output is correct
61 Correct 49 ms 6932 KB Output is correct
62 Correct 51 ms 8008 KB Output is correct
63 Correct 55 ms 6820 KB Output is correct
64 Correct 65 ms 7756 KB Output is correct
65 Correct 49 ms 5840 KB Output is correct
66 Correct 51 ms 6348 KB Output is correct
67 Correct 61 ms 7188 KB Output is correct
68 Correct 63 ms 7876 KB Output is correct
69 Correct 374 ms 6724 KB Output is correct
70 Correct 65 ms 7884 KB Output is correct
71 Correct 904 ms 7884 KB Output is correct
72 Correct 107 ms 6864 KB Output is correct
73 Correct 105 ms 6860 KB Output is correct
74 Correct 308 ms 6976 KB Output is correct
75 Correct 503 ms 8140 KB Output is correct
76 Correct 547 ms 6484 KB Output is correct
77 Correct 486 ms 7192 KB Output is correct
78 Correct 443 ms 7880 KB Output is correct
79 Correct 252 ms 5904 KB Output is correct
80 Correct 321 ms 6612 KB Output is correct
81 Correct 420 ms 7316 KB Output is correct
82 Correct 505 ms 8000 KB Output is correct
83 Execution timed out 2044 ms 5196 KB Time limit exceeded
84 Halted 0 ms 0 KB -