oj.uz

Submission #678622

# Submission time Handle Problem Language Result Execution time Memory
678622 2023-01-06T08:49:43 Z Dan4Life Swapping Cities (APIO20_swap) C++17
37 / 100
 2000 ms 17424 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define SZ(a) (int)a.size()
using ll = long long;

const int maxn = (int)1e5+10;
const int INF = (ll)1e9;

vector<pair<int,int>> adj[maxn];
ll dis[maxn]; int tot = 0;
int par[maxn];
bool vis[maxn];
int n, m, p[maxn], sz[maxn];

int findSet(int i){ return p[i]==i?i:p[i]=findSet(p[i]); }
bool isSameSet(int i, int j) { return findSet(i)==findSet(j); }

bool unionSet(int i, int j){
	int x = findSet(i), y = findSet(j);
	if(x==y) return false;
	if(sz[x] < sz[y]) swap(x,y);
	p[y]=x, sz[x]+=sz[y];
	return true;
}

void init(int N, int M, vector<int> u, vector<int> v, vector<int> w) {
	n = N, m = M;
	for(int i = 0; i < M; i++){
		adj[u[i]].pb({v[i],w[i]});
		adj[v[i]].pb({u[i],w[i]});
	}
}

bool chk(int w, int x, int y){
	int mx_deg = 0, cnt = 0;
	for(int i = 0; i < n; i++) p[i] = i, sz[i] = 1;
	for(int i = 0; i < n; i++)
		for(auto u : adj[i])
			if(u.se<=w) unionSet(i,u.fi);
	if(!isSameSet(x,y)) return 0;
	bool ok = true;
	for(int i = 0; i < n; i++){
		if(!isSameSet(i,x)) continue;
		int deg = 0;
		for(auto u : adj[i])
			if(u.se<=w) deg++;
		if(mx_deg<deg) mx_deg=deg,cnt=1;
		else if(mx_deg==deg) cnt++;
		if(deg==1) ok=0;
	}
	if(mx_deg>=3) return 1;
	if(mx_deg<=1) return 0;
	return ok;
}

/*
5 6
0 1 4
0 2 4
1 2 1
1 3 2
1 4 10
2 3 3
3
1 2
2 4
0 1
*/
int getMinimumFuelCapacity(int x, int y) {
	int l = 1, r = INF+1;
	while(l<r){
		int mid = (l+r)/2;
		if(chk(mid,x,y)) r=mid;
		else l=mid+1;
	}
	return (l==INF+1?-1:l);
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 5 ms 2664 KB Output is correct
5 Correct 5 ms 2676 KB Output is correct
6 Correct 5 ms 2644 KB Output is correct
7 Correct 7 ms 2644 KB Output is correct
8 Correct 7 ms 2684 KB Output is correct
9 Correct 261 ms 8296 KB Output is correct
10 Correct 751 ms 9236 KB Output is correct
11 Correct 932 ms 9188 KB Output is correct
12 Correct 951 ms 9548 KB Output is correct
13 Correct 1121 ms 9500 KB Output is correct
14 Execution timed out 2054 ms 8396 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Execution timed out 2043 ms 11508 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 5 ms 2664 KB Output is correct
5 Correct 5 ms 2676 KB Output is correct
6 Correct 5 ms 2644 KB Output is correct
7 Correct 7 ms 2644 KB Output is correct
8 Correct 7 ms 2684 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 6 ms 2644 KB Output is correct
11 Correct 6 ms 2672 KB Output is correct
12 Correct 6 ms 2672 KB Output is correct
13 Correct 6 ms 2724 KB Output is correct
14 Correct 6 ms 2644 KB Output is correct
15 Correct 7 ms 2668 KB Output is correct
16 Correct 6 ms 2644 KB Output is correct
17 Correct 6 ms 2644 KB Output is correct
18 Correct 7 ms 2744 KB Output is correct
19 Correct 6 ms 2672 KB Output is correct
20 Correct 7 ms 2744 KB Output is correct
21 Correct 7 ms 2676 KB Output is correct
22 Correct 5 ms 2804 KB Output is correct
23 Correct 6 ms 2772 KB Output is correct
24 Correct 8 ms 2808 KB Output is correct
25 Correct 8 ms 2772 KB Output is correct
26 Correct 10 ms 2772 KB Output is correct
27 Correct 6 ms 2644 KB Output is correct
28 Correct 9 ms 2772 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 5 ms 2664 KB Output is correct
6 Correct 5 ms 2676 KB Output is correct
7 Correct 5 ms 2644 KB Output is correct
8 Correct 7 ms 2644 KB Output is correct
9 Correct 7 ms 2684 KB Output is correct
10 Correct 261 ms 8296 KB Output is correct
11 Correct 751 ms 9236 KB Output is correct
12 Correct 932 ms 9188 KB Output is correct
13 Correct 951 ms 9548 KB Output is correct
14 Correct 1121 ms 9500 KB Output is correct
15 Correct 6 ms 2644 KB Output is correct
16 Correct 6 ms 2672 KB Output is correct
17 Correct 6 ms 2672 KB Output is correct
18 Correct 6 ms 2724 KB Output is correct
19 Correct 6 ms 2644 KB Output is correct
20 Correct 7 ms 2668 KB Output is correct
21 Correct 6 ms 2644 KB Output is correct
22 Correct 6 ms 2644 KB Output is correct
23 Correct 7 ms 2744 KB Output is correct
24 Correct 6 ms 2672 KB Output is correct
25 Correct 7 ms 2744 KB Output is correct
26 Correct 7 ms 2676 KB Output is correct
27 Correct 5 ms 2804 KB Output is correct
28 Correct 6 ms 2772 KB Output is correct
29 Correct 8 ms 2808 KB Output is correct
30 Correct 8 ms 2772 KB Output is correct
31 Correct 10 ms 2772 KB Output is correct
32 Correct 6 ms 2644 KB Output is correct
33 Correct 9 ms 2772 KB Output is correct
34 Correct 27 ms 3852 KB Output is correct
35 Correct 1002 ms 9960 KB Output is correct
36 Correct 947 ms 9960 KB Output is correct
37 Correct 1059 ms 9932 KB Output is correct
38 Correct 1039 ms 9860 KB Output is correct
39 Correct 931 ms 9804 KB Output is correct
40 Correct 927 ms 9332 KB Output is correct
41 Correct 1033 ms 10156 KB Output is correct
42 Correct 1086 ms 9860 KB Output is correct
43 Correct 840 ms 10060 KB Output is correct
44 Correct 1032 ms 10720 KB Output is correct
45 Correct 1020 ms 13860 KB Output is correct
46 Correct 1043 ms 9832 KB Output is correct
47 Correct 1072 ms 9864 KB Output is correct
48 Correct 996 ms 10700 KB Output is correct
49 Correct 139 ms 14028 KB Output is correct
50 Correct 165 ms 11084 KB Output is correct
51 Correct 735 ms 12308 KB Output is correct
52 Correct 1529 ms 15052 KB Output is correct
53 Correct 1209 ms 16256 KB Output is correct
54 Correct 1929 ms 17424 KB Output is correct
55 Correct 950 ms 9852 KB Output is correct
56 Correct 1505 ms 15840 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 5 ms 2664 KB Output is correct
5 Correct 5 ms 2676 KB Output is correct
6 Correct 5 ms 2644 KB Output is correct
7 Correct 7 ms 2644 KB Output is correct
8 Correct 7 ms 2684 KB Output is correct
9 Correct 261 ms 8296 KB Output is correct
10 Correct 751 ms 9236 KB Output is correct
11 Correct 932 ms 9188 KB Output is correct
12 Correct 951 ms 9548 KB Output is correct
13 Correct 1121 ms 9500 KB Output is correct
14 Execution timed out 2054 ms 8396 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 5 ms 2664 KB Output is correct
6 Correct 5 ms 2676 KB Output is correct
7 Correct 5 ms 2644 KB Output is correct
8 Correct 7 ms 2644 KB Output is correct
9 Correct 7 ms 2684 KB Output is correct
10 Correct 261 ms 8296 KB Output is correct
11 Correct 751 ms 9236 KB Output is correct
12 Correct 932 ms 9188 KB Output is correct
13 Correct 951 ms 9548 KB Output is correct
14 Correct 1121 ms 9500 KB Output is correct
15 Execution timed out 2054 ms 8396 KB Time limit exceeded
16 Halted 0 ms 0 KB -