Submission #111405

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
111405	2019-05-15T07:28:34 Z	diamond_duke	Fireworks (APIO16_fireworks)	C++11	100 / 100	464 ms	19372 KB

fireworks

#include <algorithm>
#include <cstdio>
using ll = long long;
int lson[1200005], rson[1200005], t_cnt;
ll val[1200005];
int merge(int u, int v)
{
	if (!u || !v)
		return u | v;
	if (val[u] < val[v])
		std::swap(u, v);
	rson[u] = merge(rson[u], v);
	std::swap(lson[u], rson[u]);
	return u;
}
inline int new_node(ll x) { val[++t_cnt] = x; return t_cnt; }
void pop(int &u) { u = merge(lson[u], rson[u]); }
int fa[600005], faw[600005], deg[600005], rt[600005];
int main()
{
	// freopen("uoj-205.in", "r", stdin);
	int n, m;
	scanf("%d%d", &n, &m);
	ll ans = 0;
	for (int i = 1; i < n + m; i++)
	{
		scanf("%d%d", fa + i, faw + i);
		deg[--fa[i]]++;
		ans += faw[i];
	}
	for (int u = n + m - 1; u; u--)
	{
		ll l = 0, r = 0;
		if (u < n)
		{
			while (--deg[u])
				pop(rt[u]);
			r = val[rt[u]];
			pop(rt[u]);
			l = val[rt[u]];
			pop(rt[u]);
		}
		rt[u] = merge(rt[u], merge(new_node(l + faw[u]), new_node(r + faw[u])));
		rt[fa[u]] = merge(rt[fa[u]], rt[u]);
	}
	while (deg[0]--)
		pop(rt[0]);
	while (rt[0])
	{
		ans -= val[rt[0]];
		pop(rt[0]);
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:23:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
fireworks.cpp:27:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", fa + i, faw + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct

Subtask #2
19.0 / 19.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	3 ms	384 KB	Output is correct
16	Correct	3 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	3 ms	384 KB	Output is correct
19	Correct	3 ms	384 KB	Output is correct

Subtask #3
29.0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	3 ms	384 KB	Output is correct
26	Correct	3 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	3 ms	384 KB	Output is correct
29	Correct	3 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	2 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	3 ms	512 KB	Output is correct
34	Correct	3 ms	512 KB	Output is correct
35	Correct	4 ms	512 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	4 ms	640 KB	Output is correct
38	Correct	4 ms	640 KB	Output is correct
39	Correct	3 ms	640 KB	Output is correct
40	Correct	5 ms	640 KB	Output is correct
41	Correct	4 ms	640 KB	Output is correct
42	Correct	4 ms	640 KB	Output is correct
43	Correct	4 ms	640 KB	Output is correct
44	Correct	5 ms	512 KB	Output is correct
45	Correct	4 ms	512 KB	Output is correct
46	Correct	5 ms	512 KB	Output is correct
47	Correct	6 ms	512 KB	Output is correct
48	Correct	5 ms	512 KB	Output is correct
49	Correct	6 ms	512 KB	Output is correct
50	Correct	4 ms	512 KB	Output is correct
51	Correct	4 ms	512 KB	Output is correct
52	Correct	4 ms	512 KB	Output is correct
53	Correct	5 ms	512 KB	Output is correct
54	Correct	6 ms	512 KB	Output is correct

Subtask #4
45.0 / 45.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	3 ms	384 KB	Output is correct
26	Correct	3 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	3 ms	384 KB	Output is correct
29	Correct	3 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	2 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	3 ms	512 KB	Output is correct
34	Correct	3 ms	512 KB	Output is correct
35	Correct	4 ms	512 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	4 ms	640 KB	Output is correct
38	Correct	4 ms	640 KB	Output is correct
39	Correct	3 ms	640 KB	Output is correct
40	Correct	5 ms	640 KB	Output is correct
41	Correct	4 ms	640 KB	Output is correct
42	Correct	4 ms	640 KB	Output is correct
43	Correct	4 ms	640 KB	Output is correct
44	Correct	5 ms	512 KB	Output is correct
45	Correct	4 ms	512 KB	Output is correct
46	Correct	5 ms	512 KB	Output is correct
47	Correct	6 ms	512 KB	Output is correct
48	Correct	5 ms	512 KB	Output is correct
49	Correct	6 ms	512 KB	Output is correct
50	Correct	4 ms	512 KB	Output is correct
51	Correct	4 ms	512 KB	Output is correct
52	Correct	4 ms	512 KB	Output is correct
53	Correct	5 ms	512 KB	Output is correct
54	Correct	6 ms	512 KB	Output is correct
55	Correct	10 ms	1024 KB	Output is correct
56	Correct	25 ms	2680 KB	Output is correct
57	Correct	45 ms	4220 KB	Output is correct
58	Correct	65 ms	5188 KB	Output is correct
59	Correct	102 ms	9252 KB	Output is correct
60	Correct	109 ms	11256 KB	Output is correct
61	Correct	123 ms	12780 KB	Output is correct
62	Correct	144 ms	14104 KB	Output is correct
63	Correct	150 ms	16800 KB	Output is correct
64	Correct	152 ms	17656 KB	Output is correct
65	Correct	104 ms	19372 KB	Output is correct
66	Correct	77 ms	19320 KB	Output is correct
67	Correct	102 ms	19320 KB	Output is correct
68	Correct	152 ms	18552 KB	Output is correct
69	Correct	164 ms	18552 KB	Output is correct
70	Correct	176 ms	18552 KB	Output is correct
71	Correct	271 ms	17656 KB	Output is correct
72	Correct	274 ms	17656 KB	Output is correct
73	Correct	276 ms	17272 KB	Output is correct
74	Correct	265 ms	17400 KB	Output is correct
75	Correct	311 ms	17116 KB	Output is correct
76	Correct	291 ms	17224 KB	Output is correct
77	Correct	256 ms	17144 KB	Output is correct
78	Correct	263 ms	16988 KB	Output is correct
79	Correct	464 ms	16888 KB	Output is correct

Submission #111405

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0