답안 #426936

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
426936 2021-06-14T11:00:25 Z nots0fast 자매 도시 (APIO20_swap) C++17
100 / 100
512 ms 46996 KB
#include <bits/stdc++.h>
#include "swap.h"
using namespace std;
#define mp(a,b) make_pair(a,b)
#define ff first
#define setp(a) setprecision(a)<<fixed
#define ss second
#define fori(v) for(ll i=0; i<v; i++)
#define forj(v) for(ll j=0; j<v; j++)
#define fork(v) for(ll k=0; k<v; k++)
#define forl(v) for(ll l=0; l<v; l++)
#define fort(v) for(ll t=0; t<v; t++)
#define forz(v) for(ll z=0; z<v; z++)
#define forx(v) for(ll x=0; x<v; x++)
#define fory(v) for(ll y=0; y<v; y++)
#define ll long long
#define ld long double
#define pb(a) push_back(a)
const ll INF = 0x3f3f3f3f;
const ll inf = 1*pow(10,9) + 100;
ll modulo = pow(10,9) + 7;
#define MAX (int)(pow(10,5) + 10)


namespace dsu{
	int aid[MAX];
	vector<int> dsu[MAX];
	vector<pair<int,int> > nodeBelongs[MAX];	// nodes history of components
	int when[MAX];					// when did a component become 2 tracable
	int deg[MAX];					// degree of nodes
	
	
	void init(int n){
		fori(n){
			aid[i] = i, dsu[i].clear(), dsu[i].push_back(i), 
			when[i] = inf, deg[i] = 0, nodeBelongs[i].pb(mp(i, 0));
		}
	}
	
	bool join(int a,int b, int w){  //	1 - if joined, 0 - if they were already joined 
		deg[a]++;
		deg[b]++;
		
		int aid1 = aid[a], aid2 = aid[b];
		
		if(deg[a] > 2 || deg[b] > 2){
			when[aid1] = min(when[aid1], w);
			when[aid2] = min(when[aid2], w);
		}
		
		if(dsu[aid2].size() > dsu[aid1].size())
			swap(aid1,aid2);
		
		if(aid1==aid2){
			when[aid1] = min(when[aid1], w);
			return 0;
		}
		
		if(when[aid2]!=inf && when[aid1] == inf){
			when[aid1] = w;
		}
		
		for(auto hd : dsu[aid2]){
			aid[hd] = aid1;
			dsu[aid1].push_back(hd);
			nodeBelongs[hd].pb(mp(aid1, w));
		}
		dsu[aid2].clear();
		return 1;
	}
};


bool srt(vector<ll>& a, vector<ll>& b){
	return a[2] < b[2];
}



void init(int N, int M,	vector<int> U, vector<int> V, vector<int> W) {
	ll n = N, m = M;
	vector<vector<ll> > edges;
	fori(m){
		ll a = U[i], b = V[i], w = W[i];
		if(a > b){
			swap(a, b);
		}
		edges.pb(vector<ll>({a,b,w}));
	}
	sort(edges.begin(), edges.end(), srt);
	
	set<pair<ll,ll> > seen;
	
	dsu::init(n);
	
	for(auto& el : edges){
		dsu::join(el[0], el[1], el[2]);
	}
}


int getMinimumFuelCapacity(int X, int Y) {
	ll x = X, y = Y;
	if(dsu::when[dsu::aid[x]] == inf ){
		return -1;
	}
	
	ll cmp1 = x, cmp2 = y;
	ll pt1 = 0, pt2 = 0;
	
	int ans = 0;
	while( (cmp1 != cmp2) || (dsu::when[cmp1] == inf) ){
		if(pt1 == (ll)dsu::nodeBelongs[x].size() ){
			cmp2 = dsu::nodeBelongs[y][pt2].ff;
			ans = max(ans, dsu::nodeBelongs[y][pt2].ss);
			++pt2;
		}
		else if(pt2 == (ll)dsu::nodeBelongs[y].size()){
			cmp1 =  dsu::nodeBelongs[x][pt1].ff;
			ans = max(ans, dsu::nodeBelongs[x][pt1].ss);
			++pt1;
		}
		else if(dsu::nodeBelongs[x][pt1].ss <= dsu::nodeBelongs[y][pt2].ss){
			cmp1 =  dsu::nodeBelongs[x][pt1].ff;
			ans = max(ans, dsu::nodeBelongs[x][pt1].ss);
			++pt1;
		}
		else{
			cmp2 = dsu::nodeBelongs[y][pt2].ff;
			ans = max(ans, dsu::nodeBelongs[y][pt2].ss);
			++pt2;
		}
	}
	
	ans = max(ans, dsu::when[cmp1]);
	
	return ans;
}

/*

void deal(){
	int n, m;
	cin>>n>>m;
	vector<int> u(m), v(m), w(m);
	fori(m){
		cin>>u[i];
	}
	fori(m){
		cin>>v[i];
	}
	fori(m){
		cin>>w[i];
	}
	
	init(n, m, u, v, w);
	ll q;
	cin>>q;
	forl(q){
		ll ui, vi;
		cin>>ui>>vi;
		cout<<getMinimumFuelCapacity(ui, vi)<<'\n';
	}
}



int main(){
	cin.tie(0);
	ios_base::sync_with_stdio(0);
	deal();
}
*/
















# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 5068 KB Output is correct
5 Correct 4 ms 5196 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 186 ms 26100 KB Output is correct
10 Correct 265 ms 30316 KB Output is correct
11 Correct 251 ms 29936 KB Output is correct
12 Correct 270 ms 31272 KB Output is correct
13 Correct 169 ms 23804 KB Output is correct
14 Correct 188 ms 26152 KB Output is correct
15 Correct 334 ms 32240 KB Output is correct
16 Correct 329 ms 31564 KB Output is correct
17 Correct 345 ms 33080 KB Output is correct
18 Correct 224 ms 25536 KB Output is correct
19 Correct 95 ms 12608 KB Output is correct
20 Correct 430 ms 32260 KB Output is correct
21 Correct 387 ms 31296 KB Output is correct
22 Correct 490 ms 33140 KB Output is correct
23 Correct 301 ms 25460 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 269 ms 22368 KB Output is correct
4 Correct 266 ms 23220 KB Output is correct
5 Correct 252 ms 22640 KB Output is correct
6 Correct 278 ms 23152 KB Output is correct
7 Correct 244 ms 22996 KB Output is correct
8 Correct 277 ms 22244 KB Output is correct
9 Correct 230 ms 22940 KB Output is correct
10 Correct 238 ms 22128 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 5068 KB Output is correct
5 Correct 4 ms 5196 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 4 ms 5196 KB Output is correct
11 Correct 5 ms 5196 KB Output is correct
12 Correct 6 ms 5196 KB Output is correct
13 Correct 5 ms 5196 KB Output is correct
14 Correct 4 ms 5136 KB Output is correct
15 Correct 6 ms 5196 KB Output is correct
16 Correct 6 ms 5196 KB Output is correct
17 Correct 5 ms 5196 KB Output is correct
18 Correct 6 ms 5196 KB Output is correct
19 Correct 4 ms 5068 KB Output is correct
20 Correct 4 ms 5196 KB Output is correct
21 Correct 4 ms 5196 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 5 ms 5140 KB Output is correct
24 Correct 5 ms 5324 KB Output is correct
25 Correct 5 ms 5196 KB Output is correct
26 Correct 6 ms 5272 KB Output is correct
27 Correct 4 ms 5196 KB Output is correct
28 Correct 6 ms 5196 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4996 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 4 ms 5196 KB Output is correct
10 Correct 186 ms 26100 KB Output is correct
11 Correct 265 ms 30316 KB Output is correct
12 Correct 251 ms 29936 KB Output is correct
13 Correct 270 ms 31272 KB Output is correct
14 Correct 169 ms 23804 KB Output is correct
15 Correct 4 ms 5196 KB Output is correct
16 Correct 5 ms 5196 KB Output is correct
17 Correct 6 ms 5196 KB Output is correct
18 Correct 5 ms 5196 KB Output is correct
19 Correct 4 ms 5136 KB Output is correct
20 Correct 6 ms 5196 KB Output is correct
21 Correct 6 ms 5196 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 6 ms 5196 KB Output is correct
24 Correct 4 ms 5068 KB Output is correct
25 Correct 4 ms 5196 KB Output is correct
26 Correct 4 ms 5196 KB Output is correct
27 Correct 5 ms 5196 KB Output is correct
28 Correct 5 ms 5140 KB Output is correct
29 Correct 5 ms 5324 KB Output is correct
30 Correct 5 ms 5196 KB Output is correct
31 Correct 6 ms 5272 KB Output is correct
32 Correct 4 ms 5196 KB Output is correct
33 Correct 6 ms 5196 KB Output is correct
34 Correct 21 ms 8380 KB Output is correct
35 Correct 264 ms 31236 KB Output is correct
36 Correct 256 ms 31040 KB Output is correct
37 Correct 341 ms 30560 KB Output is correct
38 Correct 245 ms 29720 KB Output is correct
39 Correct 270 ms 29328 KB Output is correct
40 Correct 216 ms 26868 KB Output is correct
41 Correct 256 ms 31520 KB Output is correct
42 Correct 264 ms 32832 KB Output is correct
43 Correct 165 ms 24292 KB Output is correct
44 Correct 219 ms 30580 KB Output is correct
45 Correct 204 ms 28504 KB Output is correct
46 Correct 255 ms 32236 KB Output is correct
47 Correct 207 ms 28756 KB Output is correct
48 Correct 189 ms 26612 KB Output is correct
49 Correct 132 ms 21728 KB Output is correct
50 Correct 86 ms 17796 KB Output is correct
51 Correct 162 ms 24820 KB Output is correct
52 Correct 302 ms 37636 KB Output is correct
53 Correct 285 ms 35020 KB Output is correct
54 Correct 359 ms 42696 KB Output is correct
55 Correct 160 ms 24388 KB Output is correct
56 Correct 289 ms 33236 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 4 ms 5068 KB Output is correct
5 Correct 4 ms 5196 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 186 ms 26100 KB Output is correct
10 Correct 265 ms 30316 KB Output is correct
11 Correct 251 ms 29936 KB Output is correct
12 Correct 270 ms 31272 KB Output is correct
13 Correct 169 ms 23804 KB Output is correct
14 Correct 188 ms 26152 KB Output is correct
15 Correct 334 ms 32240 KB Output is correct
16 Correct 329 ms 31564 KB Output is correct
17 Correct 345 ms 33080 KB Output is correct
18 Correct 224 ms 25536 KB Output is correct
19 Correct 269 ms 22368 KB Output is correct
20 Correct 266 ms 23220 KB Output is correct
21 Correct 252 ms 22640 KB Output is correct
22 Correct 278 ms 23152 KB Output is correct
23 Correct 244 ms 22996 KB Output is correct
24 Correct 277 ms 22244 KB Output is correct
25 Correct 230 ms 22940 KB Output is correct
26 Correct 238 ms 22128 KB Output is correct
27 Correct 4 ms 5196 KB Output is correct
28 Correct 5 ms 5196 KB Output is correct
29 Correct 6 ms 5196 KB Output is correct
30 Correct 5 ms 5196 KB Output is correct
31 Correct 4 ms 5136 KB Output is correct
32 Correct 6 ms 5196 KB Output is correct
33 Correct 6 ms 5196 KB Output is correct
34 Correct 5 ms 5196 KB Output is correct
35 Correct 6 ms 5196 KB Output is correct
36 Correct 21 ms 8380 KB Output is correct
37 Correct 264 ms 31236 KB Output is correct
38 Correct 256 ms 31040 KB Output is correct
39 Correct 341 ms 30560 KB Output is correct
40 Correct 245 ms 29720 KB Output is correct
41 Correct 270 ms 29328 KB Output is correct
42 Correct 216 ms 26868 KB Output is correct
43 Correct 256 ms 31520 KB Output is correct
44 Correct 264 ms 32832 KB Output is correct
45 Correct 165 ms 24292 KB Output is correct
46 Correct 219 ms 30580 KB Output is correct
47 Correct 26 ms 8428 KB Output is correct
48 Correct 410 ms 36468 KB Output is correct
49 Correct 390 ms 35700 KB Output is correct
50 Correct 359 ms 35660 KB Output is correct
51 Correct 386 ms 35004 KB Output is correct
52 Correct 330 ms 33136 KB Output is correct
53 Correct 275 ms 25716 KB Output is correct
54 Correct 387 ms 36476 KB Output is correct
55 Correct 362 ms 36984 KB Output is correct
56 Correct 257 ms 28708 KB Output is correct
57 Correct 356 ms 34080 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4996 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5196 KB Output is correct
7 Correct 4 ms 5196 KB Output is correct
8 Correct 4 ms 5196 KB Output is correct
9 Correct 4 ms 5196 KB Output is correct
10 Correct 186 ms 26100 KB Output is correct
11 Correct 265 ms 30316 KB Output is correct
12 Correct 251 ms 29936 KB Output is correct
13 Correct 270 ms 31272 KB Output is correct
14 Correct 169 ms 23804 KB Output is correct
15 Correct 188 ms 26152 KB Output is correct
16 Correct 334 ms 32240 KB Output is correct
17 Correct 329 ms 31564 KB Output is correct
18 Correct 345 ms 33080 KB Output is correct
19 Correct 224 ms 25536 KB Output is correct
20 Correct 269 ms 22368 KB Output is correct
21 Correct 266 ms 23220 KB Output is correct
22 Correct 252 ms 22640 KB Output is correct
23 Correct 278 ms 23152 KB Output is correct
24 Correct 244 ms 22996 KB Output is correct
25 Correct 277 ms 22244 KB Output is correct
26 Correct 230 ms 22940 KB Output is correct
27 Correct 238 ms 22128 KB Output is correct
28 Correct 4 ms 5196 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 6 ms 5196 KB Output is correct
31 Correct 5 ms 5196 KB Output is correct
32 Correct 4 ms 5136 KB Output is correct
33 Correct 6 ms 5196 KB Output is correct
34 Correct 6 ms 5196 KB Output is correct
35 Correct 5 ms 5196 KB Output is correct
36 Correct 6 ms 5196 KB Output is correct
37 Correct 21 ms 8380 KB Output is correct
38 Correct 264 ms 31236 KB Output is correct
39 Correct 256 ms 31040 KB Output is correct
40 Correct 341 ms 30560 KB Output is correct
41 Correct 245 ms 29720 KB Output is correct
42 Correct 270 ms 29328 KB Output is correct
43 Correct 216 ms 26868 KB Output is correct
44 Correct 256 ms 31520 KB Output is correct
45 Correct 264 ms 32832 KB Output is correct
46 Correct 165 ms 24292 KB Output is correct
47 Correct 219 ms 30580 KB Output is correct
48 Correct 26 ms 8428 KB Output is correct
49 Correct 410 ms 36468 KB Output is correct
50 Correct 390 ms 35700 KB Output is correct
51 Correct 359 ms 35660 KB Output is correct
52 Correct 386 ms 35004 KB Output is correct
53 Correct 330 ms 33136 KB Output is correct
54 Correct 275 ms 25716 KB Output is correct
55 Correct 387 ms 36476 KB Output is correct
56 Correct 362 ms 36984 KB Output is correct
57 Correct 257 ms 28708 KB Output is correct
58 Correct 356 ms 34080 KB Output is correct
59 Correct 95 ms 12608 KB Output is correct
60 Correct 430 ms 32260 KB Output is correct
61 Correct 387 ms 31296 KB Output is correct
62 Correct 490 ms 33140 KB Output is correct
63 Correct 301 ms 25460 KB Output is correct
64 Correct 4 ms 5068 KB Output is correct
65 Correct 4 ms 5196 KB Output is correct
66 Correct 4 ms 5196 KB Output is correct
67 Correct 5 ms 5196 KB Output is correct
68 Correct 5 ms 5140 KB Output is correct
69 Correct 5 ms 5324 KB Output is correct
70 Correct 5 ms 5196 KB Output is correct
71 Correct 6 ms 5272 KB Output is correct
72 Correct 4 ms 5196 KB Output is correct
73 Correct 6 ms 5196 KB Output is correct
74 Correct 204 ms 28504 KB Output is correct
75 Correct 255 ms 32236 KB Output is correct
76 Correct 207 ms 28756 KB Output is correct
77 Correct 189 ms 26612 KB Output is correct
78 Correct 132 ms 21728 KB Output is correct
79 Correct 86 ms 17796 KB Output is correct
80 Correct 162 ms 24820 KB Output is correct
81 Correct 302 ms 37636 KB Output is correct
82 Correct 285 ms 35020 KB Output is correct
83 Correct 359 ms 42696 KB Output is correct
84 Correct 160 ms 24388 KB Output is correct
85 Correct 289 ms 33236 KB Output is correct
86 Correct 76 ms 14320 KB Output is correct
87 Correct 349 ms 35268 KB Output is correct
88 Correct 394 ms 35404 KB Output is correct
89 Correct 276 ms 29424 KB Output is correct
90 Correct 194 ms 25452 KB Output is correct
91 Correct 218 ms 25100 KB Output is correct
92 Correct 275 ms 28148 KB Output is correct
93 Correct 413 ms 40552 KB Output is correct
94 Correct 392 ms 38976 KB Output is correct
95 Correct 512 ms 46996 KB Output is correct
96 Correct 291 ms 28592 KB Output is correct
97 Correct 316 ms 33760 KB Output is correct