oj.uz

Submission #796204

# Submission time Handle Problem Language Result Execution time Memory
796204 2023-07-28T07:51:39 Z 박상훈(#10069) Security Guard (JOI23_guard) C++17
50 / 100
 401 ms 48488 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

constexpr ll INF2 = 4e18;

ll ans;

struct DSU{
	int path[200200];
	void init(int n){for (int i=1;i<=n;i++) path[i] = i;}
	int find(int s){
		if (s==path[s]) return s;
		return path[s] = find(path[s]);
	}
	int merge(int s, int v){
		s = find(s), v = find(v);
		if (s==v) return 0;
		path[v] = s;
		return 1;
	}
}dsu;

vector<int> adj[200200], G[200200];
ll a[200200];
int par[200200], deg[200200];

void dfs(int s, int pa){
	par[s] = pa;
	ans += a[pa];
	for (auto &v:G[s]) if (v!=pa) dfs(v, s);
}

int main(){
	int n, m, q;
	scanf("%d %d %d", &n, &m, &q);

	for (int i=1;i<=n;i++) scanf("%lld", a+i);
	int root = max_element(a+1, a+n+1) - a;
	
	for (int i=1;i<=m;i++){
		int x, y;
		scanf("%d %d", &x, &y);
		adj[x].push_back(y);
		adj[y].push_back(x);
	}

	vector<array<ll, 3>> E;

	dsu.init(n);

	for (int i=1;i<=n;i++){
		for (auto &v:adj[i]) if (dsu.find(i) != dsu.find(v)){
			E.push_back({a[i] + a[v], i, v});
		}
	}

	sort(E.begin(), E.end());

	vector<pair<int, int>> Edge;
	for (auto &[z, x, y]:E) if (dsu.merge(x, y)){
		G[x].push_back(y);
		G[y].push_back(x);

		Edge.emplace_back(x, y);
	}

	ans = a[root];
	for (int i=1;i<=n;i++) ans -= a[i];

	for (auto &[v, w]:Edge) ans += a[v] + a[w];

	printf("%lld\n", ans);
}

Compilation message

guard.cpp: In function 'int main()':
guard.cpp:37:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |  scanf("%d %d %d", &n, &m, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
guard.cpp:39:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |  for (int i=1;i<=n;i++) scanf("%lld", a+i);
      |                         ~~~~~^~~~~~~~~~~~~
guard.cpp:44:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |   scanf("%d %d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 131 ms 35516 KB Output is correct
3 Correct 113 ms 35428 KB Output is correct
4 Correct 128 ms 35472 KB Output is correct
5 Correct 128 ms 35620 KB Output is correct
6 Correct 127 ms 35520 KB Output is correct
7 Correct 125 ms 35528 KB Output is correct
8 Correct 5 ms 9720 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 131 ms 35516 KB Output is correct
3 Correct 113 ms 35428 KB Output is correct
4 Correct 128 ms 35472 KB Output is correct
5 Correct 128 ms 35620 KB Output is correct
6 Correct 127 ms 35520 KB Output is correct
7 Correct 125 ms 35528 KB Output is correct
8 Correct 5 ms 9720 KB Output is correct
9 Correct 4 ms 9684 KB Output is correct
10 Correct 194 ms 35612 KB Output is correct
11 Correct 114 ms 35520 KB Output is correct
12 Correct 106 ms 35536 KB Output is correct
13 Correct 102 ms 35524 KB Output is correct
14 Correct 144 ms 35524 KB Output is correct
15 Correct 154 ms 35500 KB Output is correct
16 Correct 164 ms 35420 KB Output is correct
17 Correct 147 ms 35520 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 131 ms 35516 KB Output is correct
3 Correct 113 ms 35428 KB Output is correct
4 Correct 128 ms 35472 KB Output is correct
5 Correct 128 ms 35620 KB Output is correct
6 Correct 127 ms 35520 KB Output is correct
7 Correct 125 ms 35528 KB Output is correct
8 Correct 5 ms 9720 KB Output is correct
9 Correct 4 ms 9684 KB Output is correct
10 Correct 194 ms 35612 KB Output is correct
11 Correct 114 ms 35520 KB Output is correct
12 Correct 106 ms 35536 KB Output is correct
13 Correct 102 ms 35524 KB Output is correct
14 Correct 144 ms 35524 KB Output is correct
15 Correct 154 ms 35500 KB Output is correct
16 Correct 164 ms 35420 KB Output is correct
17 Correct 147 ms 35520 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 194 ms 35448 KB Output is correct
20 Correct 195 ms 35456 KB Output is correct
21 Correct 184 ms 35640 KB Output is correct
22 Correct 189 ms 35868 KB Output is correct
23 Correct 167 ms 37296 KB Output is correct
24 Correct 184 ms 37428 KB Output is correct
25 Correct 161 ms 37088 KB Output is correct
26 Correct 194 ms 37084 KB Output is correct
27 Correct 155 ms 37076 KB Output is correct
28 Correct 186 ms 35916 KB Output is correct
29 Correct 181 ms 36280 KB Output is correct
30 Correct 177 ms 36956 KB Output is correct
31 Correct 156 ms 37084 KB Output is correct
32 Correct 183 ms 36392 KB Output is correct
33 Correct 206 ms 35520 KB Output is correct
34 Correct 180 ms 35576 KB Output is correct
35 Correct 172 ms 37404 KB Output is correct
36 Correct 162 ms 37648 KB Output is correct
37 Correct 195 ms 37612 KB Output is correct
38 Correct 166 ms 36300 KB Output is correct
39 Correct 169 ms 36944 KB Output is correct
40 Correct 165 ms 36580 KB Output is correct
41 Correct 174 ms 35520 KB Output is correct
42 Correct 159 ms 35508 KB Output is correct
43 Correct 186 ms 35868 KB Output is correct
44 Correct 201 ms 36000 KB Output is correct
45 Correct 192 ms 35968 KB Output is correct
46 Correct 204 ms 35916 KB Output is correct
47 Correct 204 ms 36032 KB Output is correct
48 Correct 186 ms 35876 KB Output is correct
49 Correct 183 ms 35952 KB Output is correct
50 Correct 185 ms 35936 KB Output is correct
51 Correct 178 ms 35912 KB Output is correct
52 Correct 186 ms 35960 KB Output is correct

Subtask #4
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 131 ms 35516 KB Output is correct
3 Correct 113 ms 35428 KB Output is correct
4 Correct 128 ms 35472 KB Output is correct
5 Correct 128 ms 35620 KB Output is correct
6 Correct 127 ms 35520 KB Output is correct
7 Correct 125 ms 35528 KB Output is correct
8 Correct 5 ms 9720 KB Output is correct
9 Correct 4 ms 9684 KB Output is correct
10 Correct 194 ms 35612 KB Output is correct
11 Correct 114 ms 35520 KB Output is correct
12 Correct 106 ms 35536 KB Output is correct
13 Correct 102 ms 35524 KB Output is correct
14 Correct 144 ms 35524 KB Output is correct
15 Correct 154 ms 35500 KB Output is correct
16 Correct 164 ms 35420 KB Output is correct
17 Correct 147 ms 35520 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 194 ms 35448 KB Output is correct
20 Correct 195 ms 35456 KB Output is correct
21 Correct 184 ms 35640 KB Output is correct
22 Correct 189 ms 35868 KB Output is correct
23 Correct 167 ms 37296 KB Output is correct
24 Correct 184 ms 37428 KB Output is correct
25 Correct 161 ms 37088 KB Output is correct
26 Correct 194 ms 37084 KB Output is correct
27 Correct 155 ms 37076 KB Output is correct
28 Correct 186 ms 35916 KB Output is correct
29 Correct 181 ms 36280 KB Output is correct
30 Correct 177 ms 36956 KB Output is correct
31 Correct 156 ms 37084 KB Output is correct
32 Correct 183 ms 36392 KB Output is correct
33 Correct 206 ms 35520 KB Output is correct
34 Correct 180 ms 35576 KB Output is correct
35 Correct 172 ms 37404 KB Output is correct
36 Correct 162 ms 37648 KB Output is correct
37 Correct 195 ms 37612 KB Output is correct
38 Correct 166 ms 36300 KB Output is correct
39 Correct 169 ms 36944 KB Output is correct
40 Correct 165 ms 36580 KB Output is correct
41 Correct 174 ms 35520 KB Output is correct
42 Correct 159 ms 35508 KB Output is correct
43 Correct 186 ms 35868 KB Output is correct
44 Correct 201 ms 36000 KB Output is correct
45 Correct 192 ms 35968 KB Output is correct
46 Correct 204 ms 35916 KB Output is correct
47 Correct 204 ms 36032 KB Output is correct
48 Correct 186 ms 35876 KB Output is correct
49 Correct 183 ms 35952 KB Output is correct
50 Correct 185 ms 35936 KB Output is correct
51 Correct 178 ms 35912 KB Output is correct
52 Correct 186 ms 35960 KB Output is correct
53 Correct 4 ms 9684 KB Output is correct
54 Correct 178 ms 35968 KB Output is correct
55 Correct 202 ms 36256 KB Output is correct
56 Correct 249 ms 43668 KB Output is correct
57 Correct 303 ms 47036 KB Output is correct
58 Correct 326 ms 48488 KB Output is correct
59 Correct 288 ms 48364 KB Output is correct
60 Correct 241 ms 44584 KB Output is correct
61 Correct 289 ms 47068 KB Output is correct
62 Correct 331 ms 47152 KB Output is correct
63 Correct 206 ms 36584 KB Output is correct
64 Correct 251 ms 43900 KB Output is correct
65 Correct 320 ms 47108 KB Output is correct
66 Correct 307 ms 47704 KB Output is correct
67 Correct 312 ms 47212 KB Output is correct
68 Correct 214 ms 35616 KB Output is correct
69 Correct 266 ms 44376 KB Output is correct
70 Correct 199 ms 38444 KB Output is correct
71 Correct 176 ms 37672 KB Output is correct
72 Correct 164 ms 37572 KB Output is correct
73 Correct 178 ms 36440 KB Output is correct
74 Correct 163 ms 36892 KB Output is correct
75 Correct 203 ms 36652 KB Output is correct
76 Correct 184 ms 35536 KB Output is correct
77 Correct 165 ms 35528 KB Output is correct
78 Correct 221 ms 36664 KB Output is correct
79 Correct 377 ms 46992 KB Output is correct
80 Correct 230 ms 38956 KB Output is correct
81 Correct 323 ms 44924 KB Output is correct
82 Correct 317 ms 47188 KB Output is correct
83 Correct 401 ms 47216 KB Output is correct
84 Correct 311 ms 46536 KB Output is correct
85 Correct 191 ms 35988 KB Output is correct
86 Correct 184 ms 35900 KB Output is correct
87 Correct 159 ms 35940 KB Output is correct
88 Correct 393 ms 46460 KB Output is correct

Subtask #5
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9704 KB Output is correct
2 Incorrect 4 ms 9684 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9704 KB Output is correct
2 Incorrect 4 ms 9684 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 131 ms 35516 KB Output is correct
3 Correct 113 ms 35428 KB Output is correct
4 Correct 128 ms 35472 KB Output is correct
5 Correct 128 ms 35620 KB Output is correct
6 Correct 127 ms 35520 KB Output is correct
7 Correct 125 ms 35528 KB Output is correct
8 Correct 5 ms 9720 KB Output is correct
9 Correct 4 ms 9684 KB Output is correct
10 Correct 194 ms 35612 KB Output is correct
11 Correct 114 ms 35520 KB Output is correct
12 Correct 106 ms 35536 KB Output is correct
13 Correct 102 ms 35524 KB Output is correct
14 Correct 144 ms 35524 KB Output is correct
15 Correct 154 ms 35500 KB Output is correct
16 Correct 164 ms 35420 KB Output is correct
17 Correct 147 ms 35520 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 194 ms 35448 KB Output is correct
20 Correct 195 ms 35456 KB Output is correct
21 Correct 184 ms 35640 KB Output is correct
22 Correct 189 ms 35868 KB Output is correct
23 Correct 167 ms 37296 KB Output is correct
24 Correct 184 ms 37428 KB Output is correct
25 Correct 161 ms 37088 KB Output is correct
26 Correct 194 ms 37084 KB Output is correct
27 Correct 155 ms 37076 KB Output is correct
28 Correct 186 ms 35916 KB Output is correct
29 Correct 181 ms 36280 KB Output is correct
30 Correct 177 ms 36956 KB Output is correct
31 Correct 156 ms 37084 KB Output is correct
32 Correct 183 ms 36392 KB Output is correct
33 Correct 206 ms 35520 KB Output is correct
34 Correct 180 ms 35576 KB Output is correct
35 Correct 172 ms 37404 KB Output is correct
36 Correct 162 ms 37648 KB Output is correct
37 Correct 195 ms 37612 KB Output is correct
38 Correct 166 ms 36300 KB Output is correct
39 Correct 169 ms 36944 KB Output is correct
40 Correct 165 ms 36580 KB Output is correct
41 Correct 174 ms 35520 KB Output is correct
42 Correct 159 ms 35508 KB Output is correct
43 Correct 186 ms 35868 KB Output is correct
44 Correct 201 ms 36000 KB Output is correct
45 Correct 192 ms 35968 KB Output is correct
46 Correct 204 ms 35916 KB Output is correct
47 Correct 204 ms 36032 KB Output is correct
48 Correct 186 ms 35876 KB Output is correct
49 Correct 183 ms 35952 KB Output is correct
50 Correct 185 ms 35936 KB Output is correct
51 Correct 178 ms 35912 KB Output is correct
52 Correct 186 ms 35960 KB Output is correct
53 Correct 4 ms 9684 KB Output is correct
54 Correct 178 ms 35968 KB Output is correct
55 Correct 202 ms 36256 KB Output is correct
56 Correct 249 ms 43668 KB Output is correct
57 Correct 303 ms 47036 KB Output is correct
58 Correct 326 ms 48488 KB Output is correct
59 Correct 288 ms 48364 KB Output is correct
60 Correct 241 ms 44584 KB Output is correct
61 Correct 289 ms 47068 KB Output is correct
62 Correct 331 ms 47152 KB Output is correct
63 Correct 206 ms 36584 KB Output is correct
64 Correct 251 ms 43900 KB Output is correct
65 Correct 320 ms 47108 KB Output is correct
66 Correct 307 ms 47704 KB Output is correct
67 Correct 312 ms 47212 KB Output is correct
68 Correct 214 ms 35616 KB Output is correct
69 Correct 266 ms 44376 KB Output is correct
70 Correct 199 ms 38444 KB Output is correct
71 Correct 176 ms 37672 KB Output is correct
72 Correct 164 ms 37572 KB Output is correct
73 Correct 178 ms 36440 KB Output is correct
74 Correct 163 ms 36892 KB Output is correct
75 Correct 203 ms 36652 KB Output is correct
76 Correct 184 ms 35536 KB Output is correct
77 Correct 165 ms 35528 KB Output is correct
78 Correct 221 ms 36664 KB Output is correct
79 Correct 377 ms 46992 KB Output is correct
80 Correct 230 ms 38956 KB Output is correct
81 Correct 323 ms 44924 KB Output is correct
82 Correct 317 ms 47188 KB Output is correct
83 Correct 401 ms 47216 KB Output is correct
84 Correct 311 ms 46536 KB Output is correct
85 Correct 191 ms 35988 KB Output is correct
86 Correct 184 ms 35900 KB Output is correct
87 Correct 159 ms 35940 KB Output is correct
88 Correct 393 ms 46460 KB Output is correct
89 Correct 5 ms 9704 KB Output is correct
90 Incorrect 4 ms 9684 KB Output isn't correct
91 Halted 0 ms 0 KB -