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Submission #1022832

# Submission time Handle Problem Language Result Execution time Memory
1022832 2024-07-14T05:59:42 Z vjudge1 Fireworks (APIO16_fireworks) C++11
100 / 100
 277 ms 35412 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
int n,m,fa[600005],w[600005],rd[600005];
int rt[600005],lc[600005],rc[600005],v[600005],dis[600005],tot,ans;
int getnew(int x){
	v[++tot]=x;return tot;
}
int merge(int x,int y){
	if(!x||!y)return x+y;
	if(v[y]>v[x])swap(x,y);
	rc[x]=merge(rc[x],y);
	if(dis[lc[x]]<dis[rc[x]])swap(lc[x],rc[x]);
	dis[x]=dis[rc[x]]+1;
	return x;
}
signed main(){
	scanf("%lld%lld",&n,&m);dis[0]=-1;
	for(int i=2;i<=n+m;i++){
		scanf("%lld%lld",&fa[i],&w[i]);rd[fa[i]]++;
		ans+=w[i];
	}
	for(int i=n+m;i>=2;i--){
		int l=0,r=0;
		if(i<=n)while(rd[i]-->1)rt[i]=merge(lc[rt[i]],rc[rt[i]]);
		r=v[rt[i]],rt[i]=merge(lc[rt[i]],rc[rt[i]]);
		l=v[rt[i]],rt[i]=merge(lc[rt[i]],rc[rt[i]]);
		rt[i]=merge(rt[i],merge(getnew(l+w[i]),getnew(r+w[i])));
		rt[fa[i]]=merge(rt[fa[i]],rt[i]);
	}
	while(rd[1]--)rt[1]=merge(lc[rt[1]],rc[rt[1]]);
	while(rt[1])ans=ans-v[rt[1]],rt[1]=merge(lc[rt[1]],rc[rt[1]]);
	printf("%lld",ans);
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  scanf("%lld%lld",&n,&m);dis[0]=-1;
      |  ~~~~~^~~~~~~~~~~~~~~~~~
fireworks.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   scanf("%lld%lld",&fa[i],&w[i]);rd[fa[i]]++;
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 408 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 428 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 416 KB Output is correct
19 Correct 0 ms 348 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 408 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 428 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 416 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 860 KB Output is correct
36 Correct 2 ms 2908 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 964 KB Output is correct
40 Correct 1 ms 860 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 2 ms 860 KB Output is correct
43 Correct 2 ms 2860 KB Output is correct
44 Correct 2 ms 856 KB Output is correct
45 Correct 3 ms 1116 KB Output is correct
46 Correct 2 ms 860 KB Output is correct
47 Correct 2 ms 860 KB Output is correct
48 Correct 2 ms 860 KB Output is correct
49 Correct 3 ms 860 KB Output is correct
50 Correct 2 ms 2908 KB Output is correct
51 Correct 2 ms 860 KB Output is correct
52 Correct 2 ms 860 KB Output is correct
53 Correct 2 ms 860 KB Output is correct
54 Correct 3 ms 860 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 408 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 428 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 416 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 860 KB Output is correct
36 Correct 2 ms 2908 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 964 KB Output is correct
40 Correct 1 ms 860 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 2 ms 860 KB Output is correct
43 Correct 2 ms 2860 KB Output is correct
44 Correct 2 ms 856 KB Output is correct
45 Correct 3 ms 1116 KB Output is correct
46 Correct 2 ms 860 KB Output is correct
47 Correct 2 ms 860 KB Output is correct
48 Correct 2 ms 860 KB Output is correct
49 Correct 3 ms 860 KB Output is correct
50 Correct 2 ms 2908 KB Output is correct
51 Correct 2 ms 860 KB Output is correct
52 Correct 2 ms 860 KB Output is correct
53 Correct 2 ms 860 KB Output is correct
54 Correct 3 ms 860 KB Output is correct
55 Correct 4 ms 1884 KB Output is correct
56 Correct 14 ms 7456 KB Output is correct
57 Correct 26 ms 9304 KB Output is correct
58 Correct 35 ms 11868 KB Output is correct
59 Correct 46 ms 15696 KB Output is correct
60 Correct 59 ms 19284 KB Output is correct
61 Correct 68 ms 23892 KB Output is correct
62 Correct 78 ms 26196 KB Output is correct
63 Correct 95 ms 30804 KB Output is correct
64 Correct 109 ms 32340 KB Output is correct
65 Correct 53 ms 35412 KB Output is correct
66 Correct 53 ms 35412 KB Output is correct
67 Correct 56 ms 35412 KB Output is correct
68 Correct 97 ms 33876 KB Output is correct
69 Correct 114 ms 34016 KB Output is correct
70 Correct 111 ms 33876 KB Output is correct
71 Correct 179 ms 32340 KB Output is correct
72 Correct 168 ms 32336 KB Output is correct
73 Correct 193 ms 32156 KB Output is correct
74 Correct 175 ms 32080 KB Output is correct
75 Correct 191 ms 31780 KB Output is correct
76 Correct 203 ms 31916 KB Output is correct
77 Correct 204 ms 31572 KB Output is correct
78 Correct 220 ms 31568 KB Output is correct
79 Correct 277 ms 31536 KB Output is correct