oj.uz

Submission #771061

# Submission time Handle Problem Language Result Execution time Memory
771061 2023-07-02T12:10:57 Z Mohammad_Parsa Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1116 ms 414436 KB 
/* in the name of allah */
#include<bits/stdc++.h>
using namespace std;

#define endl '\n'
#define pb push_back
#define F first
#define S second
#define mk make_pair
typedef long long ll;

const int N=1e5+7,sq=300;
int n,m,q,vis[N],dp[N],b[N];
vector<int>cev[N];
vector<pair<int,int>>a[N],x;

void merge(int v,int u){
	x.clear();
	int s1=a[v].size(),s2=a[u].size(),i=0,j=0;
	pair<int,int>p,f;
	while(x.size()<sq && !(i==s1 && j==s2)){
		if(i==s1){
			p=a[u][j];j++;
			p.F++;
		}
		else if(j==s2){
			p=a[v][i];i++;
		}
		else{
			f=a[u][j];f.F++;
			if(f>a[v][i]){
				j++;p=f;
			}
			else{
				p=a[v][i];i++;
			}
		}
		if(!vis[p.S]){
			vis[p.S]=1;
			x.pb(p);
		}
	}
	for(auto y:x){
		vis[y.S]=0;
	}
	swap(a[v],x);
	return;
}

int main(){
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin>>n>>m>>q;
	int u,v;
	for(int i=0;i<m;i++){
		cin>>u>>v;
		cev[v].pb(u);
	}
	for(int i=1;i<=n;i++){
		a[i].pb(mk(0,i));
		for(auto u:cev[i]){
			merge(i,u);
		}
	}
	while(q--){
		int t,y;
		cin>>t>>y;
		for(int i=0;i<y;i++){
			cin>>b[i];
			vis[b[i]]=1;
		}
		if(y>=sq){
			fill(dp,dp+N,-1e9);
			for(int i=1;i<=n;i++){
				if(!vis[i])dp[i]=0;
				for(auto u:cev[i]){
					dp[i]=max(dp[i],dp[u]+1);
				}
			}
			if(dp[t]<0)dp[t]=-1;
			cout<<dp[t]<<endl;
		}
		else{
			int ans=-1;
			for(auto c:a[t]){
				if(vis[c.S])continue;
				ans=c.F;
				break;
			}
			cout<<ans<<endl;
		}
		for(int i=0;i<y;i++){
			vis[b[i]]=0;
		}
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5024 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5932 KB Output is correct
7 Correct 4 ms 5844 KB Output is correct
8 Correct 9 ms 8788 KB Output is correct
9 Correct 9 ms 8788 KB Output is correct
10 Correct 9 ms 8788 KB Output is correct
11 Correct 9 ms 8404 KB Output is correct
12 Correct 5 ms 6740 KB Output is correct
13 Correct 9 ms 8148 KB Output is correct
14 Correct 7 ms 7596 KB Output is correct
15 Correct 6 ms 6508 KB Output is correct
16 Correct 7 ms 7508 KB Output is correct
17 Correct 7 ms 7920 KB Output is correct
18 Correct 6 ms 6740 KB Output is correct
19 Correct 7 ms 7892 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5024 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5932 KB Output is correct
7 Correct 4 ms 5844 KB Output is correct
8 Correct 9 ms 8788 KB Output is correct
9 Correct 9 ms 8788 KB Output is correct
10 Correct 9 ms 8788 KB Output is correct
11 Correct 9 ms 8404 KB Output is correct
12 Correct 5 ms 6740 KB Output is correct
13 Correct 9 ms 8148 KB Output is correct
14 Correct 7 ms 7596 KB Output is correct
15 Correct 6 ms 6508 KB Output is correct
16 Correct 7 ms 7508 KB Output is correct
17 Correct 7 ms 7920 KB Output is correct
18 Correct 6 ms 6740 KB Output is correct
19 Correct 7 ms 7892 KB Output is correct
20 Correct 475 ms 11368 KB Output is correct
21 Correct 471 ms 11320 KB Output is correct
22 Correct 475 ms 11412 KB Output is correct
23 Correct 535 ms 11404 KB Output is correct
24 Correct 652 ms 285084 KB Output is correct
25 Correct 654 ms 295176 KB Output is correct
26 Correct 640 ms 294048 KB Output is correct
27 Correct 896 ms 413336 KB Output is correct
28 Correct 917 ms 413412 KB Output is correct
29 Correct 876 ms 413188 KB Output is correct
30 Correct 858 ms 412912 KB Output is correct
31 Correct 822 ms 399628 KB Output is correct
32 Correct 839 ms 412700 KB Output is correct
33 Correct 584 ms 280360 KB Output is correct
34 Correct 537 ms 235056 KB Output is correct
35 Correct 576 ms 279068 KB Output is correct
36 Correct 658 ms 349340 KB Output is correct
37 Correct 649 ms 324156 KB Output is correct
38 Correct 682 ms 349892 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5024 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5932 KB Output is correct
7 Correct 4 ms 5844 KB Output is correct
8 Correct 9 ms 8788 KB Output is correct
9 Correct 9 ms 8788 KB Output is correct
10 Correct 9 ms 8788 KB Output is correct
11 Correct 9 ms 8404 KB Output is correct
12 Correct 5 ms 6740 KB Output is correct
13 Correct 9 ms 8148 KB Output is correct
14 Correct 7 ms 7596 KB Output is correct
15 Correct 6 ms 6508 KB Output is correct
16 Correct 7 ms 7508 KB Output is correct
17 Correct 7 ms 7920 KB Output is correct
18 Correct 6 ms 6740 KB Output is correct
19 Correct 7 ms 7892 KB Output is correct
20 Correct 475 ms 11368 KB Output is correct
21 Correct 471 ms 11320 KB Output is correct
22 Correct 475 ms 11412 KB Output is correct
23 Correct 535 ms 11404 KB Output is correct
24 Correct 652 ms 285084 KB Output is correct
25 Correct 654 ms 295176 KB Output is correct
26 Correct 640 ms 294048 KB Output is correct
27 Correct 896 ms 413336 KB Output is correct
28 Correct 917 ms 413412 KB Output is correct
29 Correct 876 ms 413188 KB Output is correct
30 Correct 858 ms 412912 KB Output is correct
31 Correct 822 ms 399628 KB Output is correct
32 Correct 839 ms 412700 KB Output is correct
33 Correct 584 ms 280360 KB Output is correct
34 Correct 537 ms 235056 KB Output is correct
35 Correct 576 ms 279068 KB Output is correct
36 Correct 658 ms 349340 KB Output is correct
37 Correct 649 ms 324156 KB Output is correct
38 Correct 682 ms 349892 KB Output is correct
39 Correct 664 ms 288796 KB Output is correct
40 Correct 633 ms 290072 KB Output is correct
41 Correct 642 ms 292224 KB Output is correct
42 Correct 744 ms 290976 KB Output is correct
43 Correct 656 ms 290868 KB Output is correct
44 Correct 538 ms 12356 KB Output is correct
45 Correct 496 ms 11584 KB Output is correct
46 Correct 484 ms 11448 KB Output is correct
47 Correct 512 ms 11592 KB Output is correct
48 Correct 493 ms 11312 KB Output is correct
49 Correct 899 ms 413648 KB Output is correct
50 Correct 885 ms 412356 KB Output is correct
51 Correct 495 ms 12132 KB Output is correct
52 Correct 478 ms 11228 KB Output is correct
53 Correct 713 ms 349212 KB Output is correct
54 Correct 700 ms 325800 KB Output is correct
55 Correct 676 ms 348224 KB Output is correct
56 Correct 661 ms 325400 KB Output is correct
57 Correct 523 ms 12196 KB Output is correct
58 Correct 513 ms 12104 KB Output is correct
59 Correct 489 ms 11284 KB Output is correct
60 Correct 494 ms 11320 KB Output is correct
61 Correct 947 ms 412952 KB Output is correct
62 Correct 754 ms 349544 KB Output is correct
63 Correct 729 ms 324372 KB Output is correct
64 Correct 1116 ms 412924 KB Output is correct
65 Correct 921 ms 348452 KB Output is correct
66 Correct 914 ms 325332 KB Output is correct
67 Correct 833 ms 412484 KB Output is correct
68 Correct 693 ms 348916 KB Output is correct
69 Correct 623 ms 322480 KB Output is correct
70 Correct 835 ms 413052 KB Output is correct
71 Correct 662 ms 349648 KB Output is correct
72 Correct 640 ms 325180 KB Output is correct
73 Correct 864 ms 412988 KB Output is correct
74 Correct 680 ms 349692 KB Output is correct
75 Correct 651 ms 325340 KB Output is correct
76 Correct 855 ms 414436 KB Output is correct
77 Correct 830 ms 413028 KB Output is correct
78 Correct 830 ms 413652 KB Output is correct
79 Correct 490 ms 12432 KB Output is correct
80 Correct 476 ms 11636 KB Output is correct
81 Correct 465 ms 11324 KB Output is correct
82 Correct 858 ms 413888 KB Output is correct
83 Correct 846 ms 400728 KB Output is correct
84 Correct 817 ms 412620 KB Output is correct
85 Correct 815 ms 398984 KB Output is correct
86 Correct 829 ms 413132 KB Output is correct
87 Correct 820 ms 400180 KB Output is correct
88 Correct 501 ms 12336 KB Output is correct
89 Correct 498 ms 12320 KB Output is correct
90 Correct 495 ms 11508 KB Output is correct
91 Correct 485 ms 11300 KB Output is correct
92 Correct 479 ms 11352 KB Output is correct
93 Correct 479 ms 11616 KB Output is correct
94 Correct 589 ms 281932 KB Output is correct
95 Correct 538 ms 234776 KB Output is correct
96 Correct 568 ms 278744 KB Output is correct
97 Correct 513 ms 237216 KB Output is correct
98 Correct 568 ms 279856 KB Output is correct
99 Correct 521 ms 236740 KB Output is correct
100 Correct 560 ms 12420 KB Output is correct
101 Correct 545 ms 12364 KB Output is correct
102 Correct 541 ms 11420 KB Output is correct
103 Correct 546 ms 11468 KB Output is correct
104 Correct 541 ms 11428 KB Output is correct
105 Correct 533 ms 11432 KB Output is correct
106 Correct 682 ms 349640 KB Output is correct
107 Correct 654 ms 326004 KB Output is correct
108 Correct 677 ms 349736 KB Output is correct
109 Correct 644 ms 324604 KB Output is correct
110 Correct 669 ms 350180 KB Output is correct
111 Correct 640 ms 325784 KB Output is correct
112 Correct 495 ms 12296 KB Output is correct
113 Correct 505 ms 12320 KB Output is correct
114 Correct 474 ms 11344 KB Output is correct
115 Correct 485 ms 11320 KB Output is correct
116 Correct 476 ms 11420 KB Output is correct
117 Correct 486 ms 11400 KB Output is correct
118 Correct 827 ms 412392 KB Output is correct
119 Correct 677 ms 349612 KB Output is correct
120 Correct 645 ms 324300 KB Output is correct
121 Correct 850 ms 412436 KB Output is correct
122 Correct 684 ms 348532 KB Output is correct
123 Correct 653 ms 324416 KB Output is correct
124 Correct 831 ms 412420 KB Output is correct
125 Correct 679 ms 349916 KB Output is correct
126 Correct 627 ms 323348 KB Output is correct