oj.uz

답안 #110661

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
110661 2019-05-11T18:53:37 Z Pajaraja Construction of Highway (JOI18_construction) C++17
100 / 100
 1496 ms 28912 KB 
#include <bits/stdc++.h>
#define MAXN 100007
#define MAXL 18
using namespace std;
vector<int> g[MAXN],vl,br,vr;
int in[MAXN],out[MAXN],p[MAXL][MAXN],t,n,c[MAXN],rd[MAXN],d[MAXN],seg[4*MAXN];
long long bit[MAXN];
map<int,int> mp;
void updseg(int l,int r,int x,int v,int ind)
{
	if(l==r) {seg[ind]=v; return;}
	int s=(l+r)/2;
	if(x<=s) updseg(l,s,x,v,2*ind);
	else updseg(s+1,r,x,v,2*ind+1);
	seg[ind]=max(seg[2*ind],seg[2*ind+1]);
}
int val(int l,int r,int lt,int rt,int ind)
{
	if(l>=lt && r<=rt) return seg[ind];
	if(r<lt || l>rt) return 0;
	int s=(l+r)/2;
	return max(val(l,s,lt,rt,2*ind),val(s+1,r,lt,rt,2*ind+1));
}
void dfs(int s,int dub)
{
	in[s]=++t;
	d[s]=dub;
	for(int i=0;i<g[s].size();i++) dfs(g[s][i],dub+1);
	out[s]=t;
}
void lcainit()
{
	dfs(1,0); p[0][1]=1;
	for(int i=1;i<MAXL;i++) for(int j=1;j<=n;j++) p[i][j]=p[i-1][p[i-1][j]];
}
bool insub(int u,int v) {return in[u]<=in[v] && out[u]>=out[v];}
int lca(int u,int v)
{
	for(int i=MAXL-1;i>=0;i--) if(!insub(p[i][u],v)) u=p[i][u];
	return u;
}
void upd(int x,int val)
{
	while(x<MAXN)
	{
		bit[x]+=val;
		x+=x&-x;
	}
}
long long fnd(int x)
{
	long long sm=0;
	while(x)
	{
		sm+=bit[x];
		x-=x&-x;
	}
	return sm;
}
int main()
{
	scanf("%d",&n);
	for(int i=1;i<=n;i++) {scanf("%d",&c[i]); vl.push_back(c[i]);}
	sort(vl.begin(),vl.end());
	for(int i=0;i<n;i++) mp[vl[i]]=n-i;
	for(int i=1;i<=n;i++) c[i]=mp[c[i]];
	for(int i=1;i<n;i++)
	{
		int t1,t2;
		scanf("%d%d",&t1,&t2);
		g[t1].push_back(t2);
		p[0][t2]=t1;
		rd[i]=t2;
	}
	lcainit();
	rd[0]=1;
	for(int i=1;i<n;i++)
	{
		int x=1; long long sol=0;
		while(x!=rd[i])
		{
			int r=val(1,n,in[x],out[x],1);
			int w=lca(rd[i],rd[r]);
			br.push_back(c[rd[r]]); vr.push_back(d[x]-d[w]);
			sol+=((long long)d[w]-d[x])*fnd(c[rd[r]]-1);
			upd(c[rd[r]],d[w]-d[x]);
			x=w;
		}
		updseg(1,n,in[rd[i]],i,1);
		for(int j=0;j<br.size();j++) upd(br[j],vr[j]);
		br.clear(); vr.clear();
		printf("%lld\n",sol);
	}
}

Compilation message

construction.cpp: In function 'void dfs(int, int)':
construction.cpp:28:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[s].size();i++) dfs(g[s][i],dub+1);
              ~^~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:90:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<br.size();j++) upd(br[j],vr[j]);
               ~^~~~~~~~~~
construction.cpp:62:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
construction.cpp:63:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) {scanf("%d",&c[i]); vl.push_back(c[i]);}
                         ~~~~~^~~~~~~~~~~~
construction.cpp:70:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&t1,&t2);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2816 KB Output is correct
2 Correct 4 ms 2816 KB Output is correct
3 Correct 4 ms 2816 KB Output is correct
4 Correct 4 ms 2816 KB Output is correct
5 Correct 5 ms 2944 KB Output is correct
6 Correct 6 ms 2944 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 6 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2944 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 5 ms 2944 KB Output is correct
14 Correct 6 ms 2944 KB Output is correct
15 Correct 6 ms 2944 KB Output is correct
16 Correct 7 ms 2944 KB Output is correct
17 Correct 6 ms 2944 KB Output is correct
18 Correct 6 ms 2816 KB Output is correct
19 Correct 5 ms 2944 KB Output is correct
20 Correct 5 ms 2944 KB Output is correct
21 Correct 5 ms 2944 KB Output is correct
22 Correct 4 ms 2816 KB Output is correct
23 Correct 5 ms 2944 KB Output is correct
24 Correct 5 ms 2944 KB Output is correct
25 Correct 5 ms 2816 KB Output is correct
26 Correct 5 ms 2944 KB Output is correct
27 Correct 4 ms 2944 KB Output is correct
28 Correct 5 ms 2816 KB Output is correct
29 Correct 5 ms 2816 KB Output is correct
30 Correct 5 ms 2816 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 5 ms 2944 KB Output is correct
33 Correct 6 ms 2944 KB Output is correct
34 Correct 5 ms 2816 KB Output is correct
35 Correct 5 ms 2816 KB Output is correct
36 Correct 5 ms 2944 KB Output is correct
37 Correct 6 ms 2944 KB Output is correct
38 Correct 5 ms 2816 KB Output is correct
39 Correct 6 ms 2944 KB Output is correct
40 Correct 6 ms 2944 KB Output is correct
41 Correct 6 ms 2944 KB Output is correct
42 Correct 5 ms 2816 KB Output is correct
43 Correct 5 ms 2816 KB Output is correct
44 Correct 6 ms 2816 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2816 KB Output is correct
2 Correct 4 ms 2816 KB Output is correct
3 Correct 4 ms 2816 KB Output is correct
4 Correct 4 ms 2816 KB Output is correct
5 Correct 5 ms 2944 KB Output is correct
6 Correct 6 ms 2944 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 6 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2944 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 5 ms 2944 KB Output is correct
14 Correct 6 ms 2944 KB Output is correct
15 Correct 6 ms 2944 KB Output is correct
16 Correct 7 ms 2944 KB Output is correct
17 Correct 6 ms 2944 KB Output is correct
18 Correct 6 ms 2816 KB Output is correct
19 Correct 5 ms 2944 KB Output is correct
20 Correct 5 ms 2944 KB Output is correct
21 Correct 5 ms 2944 KB Output is correct
22 Correct 4 ms 2816 KB Output is correct
23 Correct 5 ms 2944 KB Output is correct
24 Correct 5 ms 2944 KB Output is correct
25 Correct 5 ms 2816 KB Output is correct
26 Correct 5 ms 2944 KB Output is correct
27 Correct 4 ms 2944 KB Output is correct
28 Correct 5 ms 2816 KB Output is correct
29 Correct 5 ms 2816 KB Output is correct
30 Correct 5 ms 2816 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 5 ms 2944 KB Output is correct
33 Correct 6 ms 2944 KB Output is correct
34 Correct 5 ms 2816 KB Output is correct
35 Correct 5 ms 2816 KB Output is correct
36 Correct 5 ms 2944 KB Output is correct
37 Correct 6 ms 2944 KB Output is correct
38 Correct 5 ms 2816 KB Output is correct
39 Correct 6 ms 2944 KB Output is correct
40 Correct 6 ms 2944 KB Output is correct
41 Correct 6 ms 2944 KB Output is correct
42 Correct 5 ms 2816 KB Output is correct
43 Correct 5 ms 2816 KB Output is correct
44 Correct 6 ms 2816 KB Output is correct
45 Correct 7 ms 3072 KB Output is correct
46 Correct 16 ms 3584 KB Output is correct
47 Correct 17 ms 3584 KB Output is correct
48 Correct 18 ms 3584 KB Output is correct
49 Correct 11 ms 3840 KB Output is correct
50 Correct 11 ms 3840 KB Output is correct
51 Correct 12 ms 3840 KB Output is correct
52 Correct 12 ms 3712 KB Output is correct
53 Correct 38 ms 3656 KB Output is correct
54 Correct 12 ms 3712 KB Output is correct
55 Correct 15 ms 3712 KB Output is correct
56 Correct 12 ms 3712 KB Output is correct
57 Correct 26 ms 3584 KB Output is correct
58 Correct 26 ms 3584 KB Output is correct
59 Correct 29 ms 3584 KB Output is correct
60 Correct 24 ms 3584 KB Output is correct
61 Correct 13 ms 3712 KB Output is correct
62 Correct 11 ms 3712 KB Output is correct
63 Correct 12 ms 3712 KB Output is correct
64 Correct 19 ms 3328 KB Output is correct
65 Correct 15 ms 3300 KB Output is correct
66 Correct 18 ms 3424 KB Output is correct
67 Correct 17 ms 3456 KB Output is correct
68 Correct 10 ms 3584 KB Output is correct
69 Correct 11 ms 3584 KB Output is correct
70 Correct 11 ms 3456 KB Output is correct
71 Correct 14 ms 3456 KB Output is correct
72 Correct 22 ms 3584 KB Output is correct
73 Correct 24 ms 3328 KB Output is correct
74 Correct 10 ms 3456 KB Output is correct
75 Correct 12 ms 3576 KB Output is correct
76 Correct 12 ms 3584 KB Output is correct
77 Correct 13 ms 3712 KB Output is correct
78 Correct 11 ms 3328 KB Output is correct
79 Correct 10 ms 3456 KB Output is correct
80 Correct 11 ms 3456 KB Output is correct
81 Correct 12 ms 3584 KB Output is correct
82 Correct 13 ms 3584 KB Output is correct
83 Correct 12 ms 3712 KB Output is correct
84 Correct 11 ms 3328 KB Output is correct
85 Correct 11 ms 3456 KB Output is correct
86 Correct 12 ms 3456 KB Output is correct

Subtask #3
84.0 / 84.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2816 KB Output is correct
2 Correct 4 ms 2816 KB Output is correct
3 Correct 4 ms 2816 KB Output is correct
4 Correct 4 ms 2816 KB Output is correct
5 Correct 5 ms 2944 KB Output is correct
6 Correct 6 ms 2944 KB Output is correct
7 Correct 5 ms 2816 KB Output is correct
8 Correct 6 ms 2944 KB Output is correct
9 Correct 6 ms 2944 KB Output is correct
10 Correct 5 ms 2944 KB Output is correct
11 Correct 5 ms 2944 KB Output is correct
12 Correct 5 ms 2944 KB Output is correct
13 Correct 5 ms 2944 KB Output is correct
14 Correct 6 ms 2944 KB Output is correct
15 Correct 6 ms 2944 KB Output is correct
16 Correct 7 ms 2944 KB Output is correct
17 Correct 6 ms 2944 KB Output is correct
18 Correct 6 ms 2816 KB Output is correct
19 Correct 5 ms 2944 KB Output is correct
20 Correct 5 ms 2944 KB Output is correct
21 Correct 5 ms 2944 KB Output is correct
22 Correct 4 ms 2816 KB Output is correct
23 Correct 5 ms 2944 KB Output is correct
24 Correct 5 ms 2944 KB Output is correct
25 Correct 5 ms 2816 KB Output is correct
26 Correct 5 ms 2944 KB Output is correct
27 Correct 4 ms 2944 KB Output is correct
28 Correct 5 ms 2816 KB Output is correct
29 Correct 5 ms 2816 KB Output is correct
30 Correct 5 ms 2816 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 5 ms 2944 KB Output is correct
33 Correct 6 ms 2944 KB Output is correct
34 Correct 5 ms 2816 KB Output is correct
35 Correct 5 ms 2816 KB Output is correct
36 Correct 5 ms 2944 KB Output is correct
37 Correct 6 ms 2944 KB Output is correct
38 Correct 5 ms 2816 KB Output is correct
39 Correct 6 ms 2944 KB Output is correct
40 Correct 6 ms 2944 KB Output is correct
41 Correct 6 ms 2944 KB Output is correct
42 Correct 5 ms 2816 KB Output is correct
43 Correct 5 ms 2816 KB Output is correct
44 Correct 6 ms 2816 KB Output is correct
45 Correct 7 ms 3072 KB Output is correct
46 Correct 16 ms 3584 KB Output is correct
47 Correct 17 ms 3584 KB Output is correct
48 Correct 18 ms 3584 KB Output is correct
49 Correct 11 ms 3840 KB Output is correct
50 Correct 11 ms 3840 KB Output is correct
51 Correct 12 ms 3840 KB Output is correct
52 Correct 12 ms 3712 KB Output is correct
53 Correct 38 ms 3656 KB Output is correct
54 Correct 12 ms 3712 KB Output is correct
55 Correct 15 ms 3712 KB Output is correct
56 Correct 12 ms 3712 KB Output is correct
57 Correct 26 ms 3584 KB Output is correct
58 Correct 26 ms 3584 KB Output is correct
59 Correct 29 ms 3584 KB Output is correct
60 Correct 24 ms 3584 KB Output is correct
61 Correct 13 ms 3712 KB Output is correct
62 Correct 11 ms 3712 KB Output is correct
63 Correct 12 ms 3712 KB Output is correct
64 Correct 19 ms 3328 KB Output is correct
65 Correct 15 ms 3300 KB Output is correct
66 Correct 18 ms 3424 KB Output is correct
67 Correct 17 ms 3456 KB Output is correct
68 Correct 10 ms 3584 KB Output is correct
69 Correct 11 ms 3584 KB Output is correct
70 Correct 11 ms 3456 KB Output is correct
71 Correct 14 ms 3456 KB Output is correct
72 Correct 22 ms 3584 KB Output is correct
73 Correct 24 ms 3328 KB Output is correct
74 Correct 10 ms 3456 KB Output is correct
75 Correct 12 ms 3576 KB Output is correct
76 Correct 12 ms 3584 KB Output is correct
77 Correct 13 ms 3712 KB Output is correct
78 Correct 11 ms 3328 KB Output is correct
79 Correct 10 ms 3456 KB Output is correct
80 Correct 11 ms 3456 KB Output is correct
81 Correct 12 ms 3584 KB Output is correct
82 Correct 13 ms 3584 KB Output is correct
83 Correct 12 ms 3712 KB Output is correct
84 Correct 11 ms 3328 KB Output is correct
85 Correct 11 ms 3456 KB Output is correct
86 Correct 12 ms 3456 KB Output is correct
87 Correct 145 ms 4840 KB Output is correct
88 Correct 176 ms 8700 KB Output is correct
89 Correct 907 ms 22620 KB Output is correct
90 Correct 858 ms 22768 KB Output is correct
91 Correct 870 ms 22768 KB Output is correct
92 Correct 552 ms 28784 KB Output is correct
93 Correct 525 ms 28852 KB Output is correct
94 Correct 448 ms 28912 KB Output is correct
95 Correct 431 ms 25164 KB Output is correct
96 Correct 467 ms 25616 KB Output is correct
97 Correct 462 ms 25616 KB Output is correct
98 Correct 491 ms 25660 KB Output is correct
99 Correct 451 ms 25072 KB Output is correct
100 Correct 1333 ms 22872 KB Output is correct
101 Correct 1496 ms 23280 KB Output is correct
102 Correct 1480 ms 23284 KB Output is correct
103 Correct 1323 ms 23124 KB Output is correct
104 Correct 666 ms 24944 KB Output is correct
105 Correct 634 ms 25068 KB Output is correct
106 Correct 629 ms 24972 KB Output is correct
107 Correct 803 ms 16564 KB Output is correct
108 Correct 793 ms 17236 KB Output is correct
109 Correct 831 ms 18928 KB Output is correct
110 Correct 419 ms 23440 KB Output is correct
111 Correct 464 ms 25200 KB Output is correct
112 Correct 373 ms 20184 KB Output is correct
113 Correct 396 ms 19696 KB Output is correct
114 Correct 1217 ms 22756 KB Output is correct
115 Correct 1195 ms 17908 KB Output is correct
116 Correct 553 ms 19824 KB Output is correct
117 Correct 491 ms 23312 KB Output is correct
118 Correct 520 ms 23024 KB Output is correct
119 Correct 507 ms 22640 KB Output is correct
120 Correct 395 ms 18456 KB Output is correct
121 Correct 409 ms 18032 KB Output is correct
122 Correct 425 ms 17936 KB Output is correct
123 Correct 652 ms 23260 KB Output is correct
124 Correct 574 ms 22896 KB Output is correct
125 Correct 556 ms 22772 KB Output is correct
126 Correct 515 ms 18540 KB Output is correct
127 Correct 616 ms 18060 KB Output is correct
128 Correct 630 ms 17904 KB Output is correct