oj.uz

Submission #649806

# Submission time Handle Problem Language Result Execution time Memory
649806 2022-10-11T11:01:28 Z DJeniUp Joker (BOI20_joker) C++17
39 / 100
 2000 ms 10680 KB 
#include "bits/stdc++.h"
//#pragma GCC optimize("O3")

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll>pairll;
typedef long double ld;

#define fr first
#define sc second
#define pb push_back
#define INF 100000000007
#define endl '\n'
#define MOD 998244353
#define N 200007

ll n,m,q,p[N],res[N],h[N],f,k;

struct Q{
    ll l,r;
}o[N];

struct D{
    ll l,r;
}d[N];

set<ll>s;

ll P(ll x){
    if(p[x]!=x){
        ll g=P(p[x]);
        h[x]+=h[p[x]];
        h[x]%=2;
        p[x]=g;
    }
    return p[x];
}

ll H(ll x){
    ll r1=0;
    while(p[x]!=x){
        r1+=h[x];
        x=p[x];
    }
    return r1;
}

void A(ll x,ll y){
    if(rand()%2)swap(x,y);
    ll x1=P(x);
    ll y1=P(y);
    h[x1]=H(x)+1+H(y);
    h[x1]%=2;
    p[x1]=y1;
    return ;
}

int main(){
    
    cin>>n>>m>>q;
    //s.insert(0);
    for(int i=1;i<=m;i++){
        cin>>d[i].l>>d[i].r;
    }
    for(int i=1;i<=q;i++){
        cin>>o[i].l>>o[i].r;
        s.insert(o[i].l-1);
    }
    for(auto it:s){
        res[it]=0;
        for(int i=1;i<=n;i++){
            p[i]=i;
            h[i]=0;
        }
        for(int i=1;i<=it;i++){
            if(P(d[i].l)!=P(d[i].r)){
                A(d[i].l,d[i].r);
            }else if(H(d[i].l)%2==H(d[i].r)%2){
                res[it]=m+1;
            }
        }
        if(res[it]!=0)continue;
        for(int i=m;i>=it;i--){
            if(P(d[i].l)==P(d[i].r) && H(d[i].l)%2==H(d[i].r)%2){
                res[it]=i;
                break;
            }else if(P(d[i].l)!=P(d[i].r))A(d[i].l,d[i].r);
        }
    }
    
    for(int i=1;i<=q;i++){
        
        if(res[o[i].l-1]>o[i].r)cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
    }
    
    
    return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 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 1 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 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 316 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 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 2 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 356 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 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 1 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 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 316 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 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 2 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 49 ms 456 KB Output is correct
30 Correct 77 ms 468 KB Output is correct
31 Correct 100 ms 492 KB Output is correct
32 Correct 89 ms 480 KB Output is correct
33 Correct 75 ms 484 KB Output is correct
34 Correct 85 ms 496 KB Output is correct
35 Correct 96 ms 496 KB Output is correct
36 Correct 75 ms 484 KB Output is correct
37 Correct 109 ms 504 KB Output is correct
38 Correct 135 ms 496 KB Output is correct
39 Correct 88 ms 496 KB Output is correct
40 Correct 64 ms 528 KB Output is correct
41 Correct 77 ms 536 KB Output is correct
42 Correct 67 ms 520 KB Output is correct
43 Correct 72 ms 508 KB Output is correct
44 Correct 84 ms 528 KB Output is correct
45 Correct 83 ms 548 KB Output is correct
46 Correct 99 ms 524 KB Output is correct
47 Correct 74 ms 508 KB Output is correct
48 Correct 85 ms 520 KB Output is correct
49 Correct 81 ms 520 KB Output is correct
50 Correct 101 ms 540 KB Output is correct
51 Correct 78 ms 516 KB Output is correct
52 Correct 83 ms 512 KB Output is correct
53 Correct 91 ms 532 KB Output is correct
54 Correct 90 ms 536 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 232 ms 9452 KB Output is correct
4 Correct 245 ms 10680 KB Output is correct
5 Correct 256 ms 10028 KB Output is correct
6 Correct 242 ms 9036 KB Output is correct
7 Correct 237 ms 8656 KB Output is correct
8 Correct 212 ms 8232 KB Output is correct
9 Correct 202 ms 8876 KB Output is correct
10 Correct 245 ms 10324 KB Output is correct
11 Correct 234 ms 8876 KB Output is correct
12 Correct 236 ms 10556 KB Output is correct
13 Correct 231 ms 7484 KB Output is correct
14 Correct 233 ms 8104 KB Output is correct
15 Correct 228 ms 9276 KB Output is correct
16 Correct 226 ms 10316 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 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 1 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 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 316 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 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 2 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 232 ms 9452 KB Output is correct
30 Correct 245 ms 10680 KB Output is correct
31 Correct 256 ms 10028 KB Output is correct
32 Correct 242 ms 9036 KB Output is correct
33 Correct 237 ms 8656 KB Output is correct
34 Correct 212 ms 8232 KB Output is correct
35 Correct 202 ms 8876 KB Output is correct
36 Correct 245 ms 10324 KB Output is correct
37 Correct 234 ms 8876 KB Output is correct
38 Correct 236 ms 10556 KB Output is correct
39 Correct 231 ms 7484 KB Output is correct
40 Correct 233 ms 8104 KB Output is correct
41 Correct 228 ms 9276 KB Output is correct
42 Correct 226 ms 10316 KB Output is correct
43 Correct 1221 ms 9564 KB Output is correct
44 Execution timed out 2056 ms 10060 KB Time limit exceeded
45 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 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 1 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 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 316 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 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 2 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 49 ms 456 KB Output is correct
30 Correct 77 ms 468 KB Output is correct
31 Correct 100 ms 492 KB Output is correct
32 Correct 89 ms 480 KB Output is correct
33 Correct 75 ms 484 KB Output is correct
34 Correct 85 ms 496 KB Output is correct
35 Correct 96 ms 496 KB Output is correct
36 Correct 75 ms 484 KB Output is correct
37 Correct 109 ms 504 KB Output is correct
38 Correct 135 ms 496 KB Output is correct
39 Correct 88 ms 496 KB Output is correct
40 Correct 64 ms 528 KB Output is correct
41 Correct 77 ms 536 KB Output is correct
42 Correct 67 ms 520 KB Output is correct
43 Correct 72 ms 508 KB Output is correct
44 Correct 84 ms 528 KB Output is correct
45 Correct 83 ms 548 KB Output is correct
46 Correct 99 ms 524 KB Output is correct
47 Correct 74 ms 508 KB Output is correct
48 Correct 85 ms 520 KB Output is correct
49 Correct 81 ms 520 KB Output is correct
50 Correct 101 ms 540 KB Output is correct
51 Correct 78 ms 516 KB Output is correct
52 Correct 83 ms 512 KB Output is correct
53 Correct 91 ms 532 KB Output is correct
54 Correct 90 ms 536 KB Output is correct
55 Execution timed out 2039 ms 6116 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 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 1 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 2 ms 340 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 2 ms 316 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 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 2 ms 340 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 284 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 49 ms 456 KB Output is correct
30 Correct 77 ms 468 KB Output is correct
31 Correct 100 ms 492 KB Output is correct
32 Correct 89 ms 480 KB Output is correct
33 Correct 75 ms 484 KB Output is correct
34 Correct 85 ms 496 KB Output is correct
35 Correct 96 ms 496 KB Output is correct
36 Correct 75 ms 484 KB Output is correct
37 Correct 109 ms 504 KB Output is correct
38 Correct 135 ms 496 KB Output is correct
39 Correct 88 ms 496 KB Output is correct
40 Correct 64 ms 528 KB Output is correct
41 Correct 77 ms 536 KB Output is correct
42 Correct 67 ms 520 KB Output is correct
43 Correct 72 ms 508 KB Output is correct
44 Correct 84 ms 528 KB Output is correct
45 Correct 83 ms 548 KB Output is correct
46 Correct 99 ms 524 KB Output is correct
47 Correct 74 ms 508 KB Output is correct
48 Correct 85 ms 520 KB Output is correct
49 Correct 81 ms 520 KB Output is correct
50 Correct 101 ms 540 KB Output is correct
51 Correct 78 ms 516 KB Output is correct
52 Correct 83 ms 512 KB Output is correct
53 Correct 91 ms 532 KB Output is correct
54 Correct 90 ms 536 KB Output is correct
55 Correct 232 ms 9452 KB Output is correct
56 Correct 245 ms 10680 KB Output is correct
57 Correct 256 ms 10028 KB Output is correct
58 Correct 242 ms 9036 KB Output is correct
59 Correct 237 ms 8656 KB Output is correct
60 Correct 212 ms 8232 KB Output is correct
61 Correct 202 ms 8876 KB Output is correct
62 Correct 245 ms 10324 KB Output is correct
63 Correct 234 ms 8876 KB Output is correct
64 Correct 236 ms 10556 KB Output is correct
65 Correct 231 ms 7484 KB Output is correct
66 Correct 233 ms 8104 KB Output is correct
67 Correct 228 ms 9276 KB Output is correct
68 Correct 226 ms 10316 KB Output is correct
69 Correct 1221 ms 9564 KB Output is correct
70 Execution timed out 2056 ms 10060 KB Time limit exceeded
71 Halted 0 ms 0 KB -