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답안 #934158

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
934158 2024-02-26T22:04:35 Z amirhoseinfar1385 다리 (APIO19_bridges) C++17
100 / 100
 1655 ms 10176 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=50000+10,maxm=100000+10,sq=1500;
int n,m,q,res[maxm];
struct yal{
	int u,v,w,tagh,asl;
}alle[maxm];
struct qu{
	int qq,ind,w;
}allq[maxm];
struct dsu{
	vector<int>allv;
	int par[maxn],sz[maxn];
	dsu(){
		for(int i=1;i<maxn;i++){
			par[i]=i;
			sz[i]=1;
		}
	}
	void clear(){
		allv.clear();
		for(int i=1;i<maxn;i++){
			par[i]=i;
			sz[i]=1;
		}
	}
	int root(int u){
		if(u==par[u]){
			return u;
		}
		return root(par[u]);
	}
	void con(int u,int v){
		int rootu=root(u),rootv=root(v);
		if(rootu!=rootv){
			if(sz[rootu]<sz[rootv]){
				swap(rootu,rootv);
			}
			allv.push_back(rootv);
			par[rootv]=rootu;
			sz[rootu]+=sz[rootv];
			return ;
		}
		allv.push_back(-1);
	}
	int gets(int u){
		return sz[root(u)];
	}
	void back(){
		int x=allv.back();
		allv.pop_back();
		if(x==-1){
			return ;
		}
		sz[par[x]]-=sz[x];
		par[x]=x;
	}
}ds;
vector<int>allp,allind,allval,que[maxm];
bool cmp(int a,int b){
	if(alle[a].w!=alle[b].w){
		return alle[a].w<alle[b].w;
	}
	if(alle[a].u!=alle[b].w){
		return alle[a].u<alle[b].u;
	}
	return alle[a].v<alle[b].v;
}

void vorod(){
	cin>>n>>m;
	for(int i=1;i<=m;i++){
		cin>>alle[i].u>>alle[i].v>>alle[i].w;
		alle[i].w*=-1;
		alle[i].tagh=0;
		alle[i].asl=alle[i].w;
		allind.push_back(i);
	}
	sort(allind.begin(),allind.end(),cmp);
	for(auto x:allind){
		allval.push_back(alle[x].w);
	}	
	cin>>q;
	for(int i=0;i<q;i++){
		cin>>allq[i].qq>>allq[i].ind>>allq[i].w;
		allq[i].w*=-1;
	}
}

void calq(int ind){
	for(auto x:que[ind]){
		int l=x-(x%sq);
		for(int i=l;i<x;i++){
			if(allq[i].qq==1){
				alle[allq[i].ind].w=allq[i].w;
			}
		}
		for(auto y:allp){
			if(allq[x].w>=alle[y].w){
				ds.con(alle[y].u,alle[y].v);
			}
		}
		res[x]=ds.gets(allq[x].ind);
		for(auto y:allp){
			if(allq[x].w>=alle[y].w){
				ds.back();
			}
		}
		for(int i=l;i<x;i++){
			if(allq[i].qq==1){
				alle[allq[i].ind].w=alle[allq[i].ind].asl;
			}
		}
	}
	que[ind].clear();
}

void solve(){
	for(int l=0;l<q;l+=sq){
		sort(allind.begin(),allind.end(),cmp);
		allval.clear();
		for(auto x:allind){
			allval.push_back(alle[x].w);
		}	
		ds.clear();
		allp.clear();
		for(int i=l;i<min(q,l+sq);i++){
			if(allq[i].qq==1){
				alle[allq[i].ind].tagh=1;
				allp.push_back(allq[i].ind);
			}
			else{
				int p=upper_bound(allval.begin(),allval.end(),allq[i].w)-allval.begin();
				que[p].push_back(i);
			}
		}
		for(int i=0;i<(int)allind.size();i++){
			calq(i);
			if(alle[allind[i]].tagh==0){
				ds.con(alle[allind[i]].u,alle[allind[i]].v);
			}
		}
		calq((int)allind.size());
		for(int i=l;i<min(q,l+sq);i++){
			if(allq[i].qq==1){
				alle[allq[i].ind].tagh=0;
				alle[allq[i].ind].w=alle[allq[i].ind].asl=allq[i].w;
			}
		}
	}
}

void khor(){
	for(int i=0;i<q;i++){
		if(allq[i].qq==2)
			cout<<res[i]<<"\n";
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	vorod();	
	solve();
	khor();
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 59 ms 4796 KB Output is correct
4 Correct 27 ms 4696 KB Output is correct
5 Correct 50 ms 4772 KB Output is correct
6 Correct 39 ms 4700 KB Output is correct
7 Correct 37 ms 4696 KB Output is correct
8 Correct 57 ms 4776 KB Output is correct
9 Correct 37 ms 4700 KB Output is correct
10 Correct 61 ms 4776 KB Output is correct
11 Correct 58 ms 4780 KB Output is correct
12 Correct 68 ms 4780 KB Output is correct
13 Correct 64 ms 4784 KB Output is correct
14 Correct 74 ms 4784 KB Output is correct
15 Correct 70 ms 4760 KB Output is correct
16 Correct 47 ms 4776 KB Output is correct
17 Correct 45 ms 4696 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 909 ms 7228 KB Output is correct
2 Correct 884 ms 7312 KB Output is correct
3 Correct 908 ms 7384 KB Output is correct
4 Correct 1047 ms 7288 KB Output is correct
5 Correct 943 ms 7292 KB Output is correct
6 Correct 1107 ms 6752 KB Output is correct
7 Correct 1118 ms 6828 KB Output is correct
8 Correct 1156 ms 6812 KB Output is correct
9 Correct 143 ms 5200 KB Output is correct
10 Correct 830 ms 6796 KB Output is correct
11 Correct 928 ms 6780 KB Output is correct
12 Correct 899 ms 7032 KB Output is correct
13 Correct 628 ms 6484 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 711 ms 6524 KB Output is correct
2 Correct 550 ms 5432 KB Output is correct
3 Correct 726 ms 6528 KB Output is correct
4 Correct 687 ms 6528 KB Output is correct
5 Correct 150 ms 5112 KB Output is correct
6 Correct 741 ms 6552 KB Output is correct
7 Correct 892 ms 6616 KB Output is correct
8 Correct 628 ms 6576 KB Output is correct
9 Correct 554 ms 6700 KB Output is correct
10 Correct 538 ms 6760 KB Output is correct
11 Correct 457 ms 5908 KB Output is correct
12 Correct 408 ms 6304 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 919 ms 9864 KB Output is correct
2 Correct 245 ms 5088 KB Output is correct
3 Correct 111 ms 7792 KB Output is correct
4 Correct 84 ms 7760 KB Output is correct
5 Correct 1084 ms 8460 KB Output is correct
6 Correct 907 ms 9840 KB Output is correct
7 Correct 877 ms 8476 KB Output is correct
8 Correct 472 ms 7544 KB Output is correct
9 Correct 465 ms 7352 KB Output is correct
10 Correct 487 ms 6936 KB Output is correct
11 Correct 683 ms 8872 KB Output is correct
12 Correct 670 ms 8656 KB Output is correct
13 Correct 877 ms 7524 KB Output is correct
14 Correct 1040 ms 8512 KB Output is correct
15 Correct 829 ms 8404 KB Output is correct
16 Correct 948 ms 10176 KB Output is correct
17 Correct 903 ms 9692 KB Output is correct
18 Correct 870 ms 9684 KB Output is correct
19 Correct 881 ms 9860 KB Output is correct
20 Correct 922 ms 8060 KB Output is correct
21 Correct 854 ms 8016 KB Output is correct
22 Correct 871 ms 8932 KB Output is correct
23 Correct 684 ms 7956 KB Output is correct

Subtask #5
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 909 ms 7228 KB Output is correct
2 Correct 884 ms 7312 KB Output is correct
3 Correct 908 ms 7384 KB Output is correct
4 Correct 1047 ms 7288 KB Output is correct
5 Correct 943 ms 7292 KB Output is correct
6 Correct 1107 ms 6752 KB Output is correct
7 Correct 1118 ms 6828 KB Output is correct
8 Correct 1156 ms 6812 KB Output is correct
9 Correct 143 ms 5200 KB Output is correct
10 Correct 830 ms 6796 KB Output is correct
11 Correct 928 ms 6780 KB Output is correct
12 Correct 899 ms 7032 KB Output is correct
13 Correct 628 ms 6484 KB Output is correct
14 Correct 711 ms 6524 KB Output is correct
15 Correct 550 ms 5432 KB Output is correct
16 Correct 726 ms 6528 KB Output is correct
17 Correct 687 ms 6528 KB Output is correct
18 Correct 150 ms 5112 KB Output is correct
19 Correct 741 ms 6552 KB Output is correct
20 Correct 892 ms 6616 KB Output is correct
21 Correct 628 ms 6576 KB Output is correct
22 Correct 554 ms 6700 KB Output is correct
23 Correct 538 ms 6760 KB Output is correct
24 Correct 457 ms 5908 KB Output is correct
25 Correct 408 ms 6304 KB Output is correct
26 Correct 950 ms 7380 KB Output is correct
27 Correct 952 ms 6948 KB Output is correct
28 Correct 930 ms 7324 KB Output is correct
29 Correct 755 ms 6888 KB Output is correct
30 Correct 1018 ms 7288 KB Output is correct
31 Correct 963 ms 7056 KB Output is correct
32 Correct 1020 ms 7528 KB Output is correct
33 Correct 922 ms 7624 KB Output is correct
34 Correct 893 ms 7244 KB Output is correct
35 Correct 883 ms 7248 KB Output is correct
36 Correct 754 ms 7068 KB Output is correct
37 Correct 734 ms 6912 KB Output is correct
38 Correct 726 ms 6892 KB Output is correct
39 Correct 677 ms 7288 KB Output is correct
40 Correct 791 ms 7232 KB Output is correct
41 Correct 668 ms 7336 KB Output is correct
42 Correct 577 ms 6592 KB Output is correct
43 Correct 495 ms 6484 KB Output is correct
44 Correct 498 ms 6484 KB Output is correct

Subtask #6
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4700 KB Output is correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 59 ms 4796 KB Output is correct
4 Correct 27 ms 4696 KB Output is correct
5 Correct 50 ms 4772 KB Output is correct
6 Correct 39 ms 4700 KB Output is correct
7 Correct 37 ms 4696 KB Output is correct
8 Correct 57 ms 4776 KB Output is correct
9 Correct 37 ms 4700 KB Output is correct
10 Correct 61 ms 4776 KB Output is correct
11 Correct 58 ms 4780 KB Output is correct
12 Correct 68 ms 4780 KB Output is correct
13 Correct 64 ms 4784 KB Output is correct
14 Correct 74 ms 4784 KB Output is correct
15 Correct 70 ms 4760 KB Output is correct
16 Correct 47 ms 4776 KB Output is correct
17 Correct 45 ms 4696 KB Output is correct
18 Correct 909 ms 7228 KB Output is correct
19 Correct 884 ms 7312 KB Output is correct
20 Correct 908 ms 7384 KB Output is correct
21 Correct 1047 ms 7288 KB Output is correct
22 Correct 943 ms 7292 KB Output is correct
23 Correct 1107 ms 6752 KB Output is correct
24 Correct 1118 ms 6828 KB Output is correct
25 Correct 1156 ms 6812 KB Output is correct
26 Correct 143 ms 5200 KB Output is correct
27 Correct 830 ms 6796 KB Output is correct
28 Correct 928 ms 6780 KB Output is correct
29 Correct 899 ms 7032 KB Output is correct
30 Correct 628 ms 6484 KB Output is correct
31 Correct 711 ms 6524 KB Output is correct
32 Correct 550 ms 5432 KB Output is correct
33 Correct 726 ms 6528 KB Output is correct
34 Correct 687 ms 6528 KB Output is correct
35 Correct 150 ms 5112 KB Output is correct
36 Correct 741 ms 6552 KB Output is correct
37 Correct 892 ms 6616 KB Output is correct
38 Correct 628 ms 6576 KB Output is correct
39 Correct 554 ms 6700 KB Output is correct
40 Correct 538 ms 6760 KB Output is correct
41 Correct 457 ms 5908 KB Output is correct
42 Correct 408 ms 6304 KB Output is correct
43 Correct 919 ms 9864 KB Output is correct
44 Correct 245 ms 5088 KB Output is correct
45 Correct 111 ms 7792 KB Output is correct
46 Correct 84 ms 7760 KB Output is correct
47 Correct 1084 ms 8460 KB Output is correct
48 Correct 907 ms 9840 KB Output is correct
49 Correct 877 ms 8476 KB Output is correct
50 Correct 472 ms 7544 KB Output is correct
51 Correct 465 ms 7352 KB Output is correct
52 Correct 487 ms 6936 KB Output is correct
53 Correct 683 ms 8872 KB Output is correct
54 Correct 670 ms 8656 KB Output is correct
55 Correct 877 ms 7524 KB Output is correct
56 Correct 1040 ms 8512 KB Output is correct
57 Correct 829 ms 8404 KB Output is correct
58 Correct 948 ms 10176 KB Output is correct
59 Correct 903 ms 9692 KB Output is correct
60 Correct 870 ms 9684 KB Output is correct
61 Correct 881 ms 9860 KB Output is correct
62 Correct 922 ms 8060 KB Output is correct
63 Correct 854 ms 8016 KB Output is correct
64 Correct 871 ms 8932 KB Output is correct
65 Correct 684 ms 7956 KB Output is correct
66 Correct 950 ms 7380 KB Output is correct
67 Correct 952 ms 6948 KB Output is correct
68 Correct 930 ms 7324 KB Output is correct
69 Correct 755 ms 6888 KB Output is correct
70 Correct 1018 ms 7288 KB Output is correct
71 Correct 963 ms 7056 KB Output is correct
72 Correct 1020 ms 7528 KB Output is correct
73 Correct 922 ms 7624 KB Output is correct
74 Correct 893 ms 7244 KB Output is correct
75 Correct 883 ms 7248 KB Output is correct
76 Correct 754 ms 7068 KB Output is correct
77 Correct 734 ms 6912 KB Output is correct
78 Correct 726 ms 6892 KB Output is correct
79 Correct 677 ms 7288 KB Output is correct
80 Correct 791 ms 7232 KB Output is correct
81 Correct 668 ms 7336 KB Output is correct
82 Correct 577 ms 6592 KB Output is correct
83 Correct 495 ms 6484 KB Output is correct
84 Correct 498 ms 6484 KB Output is correct
85 Correct 1655 ms 9220 KB Output is correct
86 Correct 160 ms 7864 KB Output is correct
87 Correct 102 ms 7776 KB Output is correct
88 Correct 1587 ms 8204 KB Output is correct
89 Correct 1628 ms 9280 KB Output is correct
90 Correct 1411 ms 8320 KB Output is correct
91 Correct 917 ms 7276 KB Output is correct
92 Correct 1026 ms 7316 KB Output is correct
93 Correct 1299 ms 6836 KB Output is correct
94 Correct 1642 ms 8532 KB Output is correct
95 Correct 1355 ms 8304 KB Output is correct
96 Correct 1402 ms 7420 KB Output is correct
97 Correct 1411 ms 8408 KB Output is correct
98 Correct 1111 ms 8152 KB Output is correct
99 Correct 1622 ms 9504 KB Output is correct
100 Correct 1572 ms 9148 KB Output is correct
101 Correct 1628 ms 9076 KB Output is correct
102 Correct 1519 ms 9280 KB Output is correct
103 Correct 1338 ms 7852 KB Output is correct
104 Correct 1365 ms 7976 KB Output is correct
105 Correct 954 ms 7828 KB Output is correct
106 Correct 758 ms 7308 KB Output is correct
107 Correct 1108 ms 7988 KB Output is correct
108 Correct 1474 ms 9152 KB Output is correct
109 Correct 1208 ms 7596 KB Output is correct