답안 #796204

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
796204	2023-07-28T07:51:39 Z	박상훈(#10069)	Security Guard (JOI23_guard)	C++17	50 / 100	401 ms	48488 KB

guard

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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	-

답안 #796204

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 13.0 / 13.0

Subtask #3 12.0 / 12.0

Subtask #4 13.0 / 13.0

Subtask #5 0 / 8.0

Subtask #6 0 / 18.0

Subtask #7 0 / 24.0

Subtask #1
12.0 / 12.0

Subtask #2
13.0 / 13.0

Subtask #3
12.0 / 12.0

Subtask #4
13.0 / 13.0

Subtask #5
0 / 8.0

Subtask #6
0 / 18.0

Subtask #7
0 / 24.0