답안 #112236

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
112236	2019-05-18T01:47:24 Z	nxteru	Construction of Highway (JOI18_construction)	C++14	100 / 100	507 ms	89296 KB

construction

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double D;
typedef pair<ll,ll> P;
#define M 1000000007
#define F first
#define S second
#define PB push_back
#define INF 100000000000000000
struct BIT{
	int n;
	ll bit[100005];
	void ini(int x){
		n=x;
		for(int i=0;i<=n;i++)bit[i]=0;
	}
	void add(int a,ll x){
		a++;
		while(a<=n){
			bit[a]+=x;
			a+=(a&-a);
		}
	}
	ll sum(int a){
		a++;
		ll res=0;
		while(a>0){
			res+=bit[a];
			a-=(a&-a);
		}
		return res;
	}
};
int n,k,id[100005],a[100005],b[100005],sz[100005],hd[100005],cn[100005];
vector<int>g[100005],cm;
stack<P>s[100005];
ll q[100005];
BIT bit;
void dfs1(int v){
	sz[v]=1;
	for(int i=0;i<g[v].size();i++){
		dfs1(g[v][i]);
		sz[v]+=sz[g[v][i]];
		if(sz[g[v][0]]<sz[g[v][i]])swap(g[v][0],g[v][i]);
	}
}
void dfs2(int v,int h){
	id[v]=k;
	hd[k]=h;
	cn[k]=cn[h];
	k++;
	if(g[v].size()!=0)dfs2(g[v][0],h);
	s[h].push(P(q[v],1LL));
	for(int i=1;i<g[v].size();i++){
		cn[k]=id[v];
		dfs2(g[v][i],k);
	}
}
int main(void){
    scanf("%d",&n);
    for(int i=0;i<n;i++){
		scanf("%lld",q+i);
		cm.PB(q[i]);
	}
	sort(cm.begin(),cm.end());
	cm.erase(unique(cm.begin(),cm.end()),cm.end());
	bit.ini(cm.size());
	for(int i=0;i<n;i++)q[i]=lower_bound(cm.begin(),cm.end(),q[i])-cm.begin();
    for(int i=0;i<n-1;i++){
		scanf("%d%d",a+i,b+i);
		a[i]--,b[i]--;
		g[a[i]].PB(b[i]);
	}
	dfs1(0);
	dfs2(0,0);
	for(int i=0;i<n-1;i++){
		vector<P>r;
		stack<P>w;
		ll ans=0;
		int v=a[i],u=b[i];
		v=id[v];
		while(1){
			int h=hd[v],res=v-h+1;
			while(s[h].top().S<=res){
				w.push(s[h].top());
				res-=s[h].top().S;
				s[h].pop();
			}
			if(res>0){
				s[h].top().S-=res;
				w.push(P(s[h].top().F,res));
			}
			s[h].push(P(q[u],ll(v-h+1)));
			while(!w.empty()){
				r.PB(w.top());
				w.pop();
			}
			if(h==0)break;
			else v=cn[h];
		}
		for(int j=0;j<r.size();j++){
			ans+=r[j].S*bit.sum(r[j].F-1);
			bit.add(r[j].F,r[j].S);
		}
		for(int j=0;j<r.size();j++)bit.add(r[j].F,-r[j].S);
		printf("%lld\n",ans);
	}
}

Compilation message

construction.cpp: In function 'void dfs1(int)':
construction.cpp:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<g[v].size();i++){
              ~^~~~~~~~~~~~
construction.cpp: In function 'void dfs2(int, int)':
construction.cpp:55:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<g[v].size();i++){
              ~^~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:102:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<r.size();j++){
               ~^~~~~~~~~
construction.cpp:106:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<r.size();j++)bit.add(r[j].F,-r[j].S);
               ~^~~~~~~~~
construction.cpp:61:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
construction.cpp:63:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",q+i);
   ~~~~~^~~~~~~~~~~~
construction.cpp:71:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",a+i,b+i);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	70008 KB	Output is correct
2	Correct	64 ms	70112 KB	Output is correct
3	Correct	64 ms	70008 KB	Output is correct
4	Correct	67 ms	70008 KB	Output is correct
5	Correct	68 ms	70136 KB	Output is correct
6	Correct	66 ms	70000 KB	Output is correct
7	Correct	66 ms	70008 KB	Output is correct
8	Correct	67 ms	70136 KB	Output is correct
9	Correct	67 ms	70136 KB	Output is correct
10	Correct	74 ms	70136 KB	Output is correct
11	Correct	75 ms	70136 KB	Output is correct
12	Correct	66 ms	70160 KB	Output is correct
13	Correct	64 ms	70008 KB	Output is correct
14	Correct	64 ms	70140 KB	Output is correct
15	Correct	67 ms	70008 KB	Output is correct
16	Correct	74 ms	70008 KB	Output is correct
17	Correct	75 ms	70136 KB	Output is correct
18	Correct	64 ms	70136 KB	Output is correct
19	Correct	76 ms	70140 KB	Output is correct
20	Correct	64 ms	70008 KB	Output is correct
21	Correct	73 ms	70136 KB	Output is correct
22	Correct	73 ms	70084 KB	Output is correct
23	Correct	65 ms	70008 KB	Output is correct
24	Correct	64 ms	69980 KB	Output is correct
25	Correct	66 ms	70136 KB	Output is correct
26	Correct	65 ms	70108 KB	Output is correct
27	Correct	66 ms	70136 KB	Output is correct
28	Correct	68 ms	70136 KB	Output is correct
29	Correct	69 ms	70008 KB	Output is correct
30	Correct	67 ms	70112 KB	Output is correct
31	Correct	67 ms	70264 KB	Output is correct
32	Correct	64 ms	70116 KB	Output is correct
33	Correct	75 ms	70136 KB	Output is correct
34	Correct	63 ms	70008 KB	Output is correct
35	Correct	62 ms	70136 KB	Output is correct
36	Correct	75 ms	70064 KB	Output is correct
37	Correct	74 ms	70140 KB	Output is correct
38	Correct	65 ms	70008 KB	Output is correct
39	Correct	67 ms	70008 KB	Output is correct
40	Correct	71 ms	70136 KB	Output is correct
41	Correct	74 ms	70136 KB	Output is correct
42	Correct	68 ms	70136 KB	Output is correct
43	Correct	68 ms	70136 KB	Output is correct
44	Correct	63 ms	70136 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	70008 KB	Output is correct
2	Correct	64 ms	70112 KB	Output is correct
3	Correct	64 ms	70008 KB	Output is correct
4	Correct	67 ms	70008 KB	Output is correct
5	Correct	68 ms	70136 KB	Output is correct
6	Correct	66 ms	70000 KB	Output is correct
7	Correct	66 ms	70008 KB	Output is correct
8	Correct	67 ms	70136 KB	Output is correct
9	Correct	67 ms	70136 KB	Output is correct
10	Correct	74 ms	70136 KB	Output is correct
11	Correct	75 ms	70136 KB	Output is correct
12	Correct	66 ms	70160 KB	Output is correct
13	Correct	64 ms	70008 KB	Output is correct
14	Correct	64 ms	70140 KB	Output is correct
15	Correct	67 ms	70008 KB	Output is correct
16	Correct	74 ms	70008 KB	Output is correct
17	Correct	75 ms	70136 KB	Output is correct
18	Correct	64 ms	70136 KB	Output is correct
19	Correct	76 ms	70140 KB	Output is correct
20	Correct	64 ms	70008 KB	Output is correct
21	Correct	73 ms	70136 KB	Output is correct
22	Correct	73 ms	70084 KB	Output is correct
23	Correct	65 ms	70008 KB	Output is correct
24	Correct	64 ms	69980 KB	Output is correct
25	Correct	66 ms	70136 KB	Output is correct
26	Correct	65 ms	70108 KB	Output is correct
27	Correct	66 ms	70136 KB	Output is correct
28	Correct	68 ms	70136 KB	Output is correct
29	Correct	69 ms	70008 KB	Output is correct
30	Correct	67 ms	70112 KB	Output is correct
31	Correct	67 ms	70264 KB	Output is correct
32	Correct	64 ms	70116 KB	Output is correct
33	Correct	75 ms	70136 KB	Output is correct
34	Correct	63 ms	70008 KB	Output is correct
35	Correct	62 ms	70136 KB	Output is correct
36	Correct	75 ms	70064 KB	Output is correct
37	Correct	74 ms	70140 KB	Output is correct
38	Correct	65 ms	70008 KB	Output is correct
39	Correct	67 ms	70008 KB	Output is correct
40	Correct	71 ms	70136 KB	Output is correct
41	Correct	74 ms	70136 KB	Output is correct
42	Correct	68 ms	70136 KB	Output is correct
43	Correct	68 ms	70136 KB	Output is correct
44	Correct	63 ms	70136 KB	Output is correct
45	Correct	64 ms	70052 KB	Output is correct
46	Correct	68 ms	70392 KB	Output is correct
47	Correct	81 ms	70392 KB	Output is correct
48	Correct	69 ms	70384 KB	Output is correct
49	Correct	68 ms	70776 KB	Output is correct
50	Correct	68 ms	70904 KB	Output is correct
51	Correct	68 ms	70876 KB	Output is correct
52	Correct	78 ms	70652 KB	Output is correct
53	Correct	81 ms	70648 KB	Output is correct
54	Correct	71 ms	70648 KB	Output is correct
55	Correct	70 ms	70648 KB	Output is correct
56	Correct	70 ms	70568 KB	Output is correct
57	Correct	77 ms	70392 KB	Output is correct
58	Correct	73 ms	70392 KB	Output is correct
59	Correct	76 ms	70392 KB	Output is correct
60	Correct	72 ms	70392 KB	Output is correct
61	Correct	74 ms	70520 KB	Output is correct
62	Correct	82 ms	70492 KB	Output is correct
63	Correct	69 ms	70520 KB	Output is correct
64	Correct	68 ms	70360 KB	Output is correct
65	Correct	71 ms	70264 KB	Output is correct
66	Correct	68 ms	70264 KB	Output is correct
67	Correct	76 ms	70264 KB	Output is correct
68	Correct	68 ms	70648 KB	Output is correct
69	Correct	76 ms	70524 KB	Output is correct
70	Correct	73 ms	70564 KB	Output is correct
71	Correct	80 ms	70524 KB	Output is correct
72	Correct	70 ms	70392 KB	Output is correct
73	Correct	70 ms	70392 KB	Output is correct
74	Correct	68 ms	70520 KB	Output is correct
75	Correct	80 ms	70520 KB	Output is correct
76	Correct	68 ms	70392 KB	Output is correct
77	Correct	68 ms	70392 KB	Output is correct
78	Correct	80 ms	70392 KB	Output is correct
79	Correct	66 ms	70392 KB	Output is correct
80	Correct	68 ms	70392 KB	Output is correct
81	Correct	72 ms	70520 KB	Output is correct
82	Correct	72 ms	70496 KB	Output is correct
83	Correct	71 ms	70484 KB	Output is correct
84	Correct	67 ms	70392 KB	Output is correct
85	Correct	69 ms	70392 KB	Output is correct
86	Correct	71 ms	70392 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	70008 KB	Output is correct
2	Correct	64 ms	70112 KB	Output is correct
3	Correct	64 ms	70008 KB	Output is correct
4	Correct	67 ms	70008 KB	Output is correct
5	Correct	68 ms	70136 KB	Output is correct
6	Correct	66 ms	70000 KB	Output is correct
7	Correct	66 ms	70008 KB	Output is correct
8	Correct	67 ms	70136 KB	Output is correct
9	Correct	67 ms	70136 KB	Output is correct
10	Correct	74 ms	70136 KB	Output is correct
11	Correct	75 ms	70136 KB	Output is correct
12	Correct	66 ms	70160 KB	Output is correct
13	Correct	64 ms	70008 KB	Output is correct
14	Correct	64 ms	70140 KB	Output is correct
15	Correct	67 ms	70008 KB	Output is correct
16	Correct	74 ms	70008 KB	Output is correct
17	Correct	75 ms	70136 KB	Output is correct
18	Correct	64 ms	70136 KB	Output is correct
19	Correct	76 ms	70140 KB	Output is correct
20	Correct	64 ms	70008 KB	Output is correct
21	Correct	73 ms	70136 KB	Output is correct
22	Correct	73 ms	70084 KB	Output is correct
23	Correct	65 ms	70008 KB	Output is correct
24	Correct	64 ms	69980 KB	Output is correct
25	Correct	66 ms	70136 KB	Output is correct
26	Correct	65 ms	70108 KB	Output is correct
27	Correct	66 ms	70136 KB	Output is correct
28	Correct	68 ms	70136 KB	Output is correct
29	Correct	69 ms	70008 KB	Output is correct
30	Correct	67 ms	70112 KB	Output is correct
31	Correct	67 ms	70264 KB	Output is correct
32	Correct	64 ms	70116 KB	Output is correct
33	Correct	75 ms	70136 KB	Output is correct
34	Correct	63 ms	70008 KB	Output is correct
35	Correct	62 ms	70136 KB	Output is correct
36	Correct	75 ms	70064 KB	Output is correct
37	Correct	74 ms	70140 KB	Output is correct
38	Correct	65 ms	70008 KB	Output is correct
39	Correct	67 ms	70008 KB	Output is correct
40	Correct	71 ms	70136 KB	Output is correct
41	Correct	74 ms	70136 KB	Output is correct
42	Correct	68 ms	70136 KB	Output is correct
43	Correct	68 ms	70136 KB	Output is correct
44	Correct	63 ms	70136 KB	Output is correct
45	Correct	64 ms	70052 KB	Output is correct
46	Correct	68 ms	70392 KB	Output is correct
47	Correct	81 ms	70392 KB	Output is correct
48	Correct	69 ms	70384 KB	Output is correct
49	Correct	68 ms	70776 KB	Output is correct
50	Correct	68 ms	70904 KB	Output is correct
51	Correct	68 ms	70876 KB	Output is correct
52	Correct	78 ms	70652 KB	Output is correct
53	Correct	81 ms	70648 KB	Output is correct
54	Correct	71 ms	70648 KB	Output is correct
55	Correct	70 ms	70648 KB	Output is correct
56	Correct	70 ms	70568 KB	Output is correct
57	Correct	77 ms	70392 KB	Output is correct
58	Correct	73 ms	70392 KB	Output is correct
59	Correct	76 ms	70392 KB	Output is correct
60	Correct	72 ms	70392 KB	Output is correct
61	Correct	74 ms	70520 KB	Output is correct
62	Correct	82 ms	70492 KB	Output is correct
63	Correct	69 ms	70520 KB	Output is correct
64	Correct	68 ms	70360 KB	Output is correct
65	Correct	71 ms	70264 KB	Output is correct
66	Correct	68 ms	70264 KB	Output is correct
67	Correct	76 ms	70264 KB	Output is correct
68	Correct	68 ms	70648 KB	Output is correct
69	Correct	76 ms	70524 KB	Output is correct
70	Correct	73 ms	70564 KB	Output is correct
71	Correct	80 ms	70524 KB	Output is correct
72	Correct	70 ms	70392 KB	Output is correct
73	Correct	70 ms	70392 KB	Output is correct
74	Correct	68 ms	70520 KB	Output is correct
75	Correct	80 ms	70520 KB	Output is correct
76	Correct	68 ms	70392 KB	Output is correct
77	Correct	68 ms	70392 KB	Output is correct
78	Correct	80 ms	70392 KB	Output is correct
79	Correct	66 ms	70392 KB	Output is correct
80	Correct	68 ms	70392 KB	Output is correct
81	Correct	72 ms	70520 KB	Output is correct
82	Correct	72 ms	70496 KB	Output is correct
83	Correct	71 ms	70484 KB	Output is correct
84	Correct	67 ms	70392 KB	Output is correct
85	Correct	69 ms	70392 KB	Output is correct
86	Correct	71 ms	70392 KB	Output is correct
87	Correct	92 ms	70852 KB	Output is correct
88	Correct	132 ms	72512 KB	Output is correct
89	Correct	352 ms	78364 KB	Output is correct
90	Correct	367 ms	78304 KB	Output is correct
91	Correct	366 ms	78324 KB	Output is correct
92	Correct	239 ms	89204 KB	Output is correct
93	Correct	224 ms	89204 KB	Output is correct
94	Correct	229 ms	89296 KB	Output is correct
95	Correct	213 ms	83712 KB	Output is correct
96	Correct	228 ms	84140 KB	Output is correct
97	Correct	220 ms	84276 KB	Output is correct
98	Correct	217 ms	84288 KB	Output is correct
99	Correct	224 ms	83076 KB	Output is correct
100	Correct	507 ms	78576 KB	Output is correct
101	Correct	474 ms	78788 KB	Output is correct
102	Correct	470 ms	78960 KB	Output is correct
103	Correct	504 ms	78924 KB	Output is correct
104	Correct	236 ms	83064 KB	Output is correct
105	Correct	241 ms	83164 KB	Output is correct
106	Correct	238 ms	83128 KB	Output is correct
107	Correct	298 ms	76660 KB	Output is correct
108	Correct	315 ms	76916 KB	Output is correct
109	Correct	327 ms	77524 KB	Output is correct
110	Correct	192 ms	87924 KB	Output is correct
111	Correct	213 ms	83924 KB	Output is correct
112	Correct	189 ms	82820 KB	Output is correct
113	Correct	202 ms	81624 KB	Output is correct
114	Correct	396 ms	78612 KB	Output is correct
115	Correct	367 ms	77548 KB	Output is correct
116	Correct	231 ms	81652 KB	Output is correct
117	Correct	243 ms	80892 KB	Output is correct
118	Correct	224 ms	80116 KB	Output is correct
119	Correct	215 ms	79812 KB	Output is correct
120	Correct	190 ms	79604 KB	Output is correct
121	Correct	209 ms	79084 KB	Output is correct
122	Correct	194 ms	78836 KB	Output is correct
123	Correct	257 ms	80884 KB	Output is correct
124	Correct	276 ms	80116 KB	Output is correct
125	Correct	236 ms	79832 KB	Output is correct
126	Correct	205 ms	79824 KB	Output is correct
127	Correct	202 ms	79192 KB	Output is correct
128	Correct	225 ms	78808 KB	Output is correct

답안 #112236

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 9.0 / 9.0

Subtask #3 84.0 / 84.0

Subtask #1
7.0 / 7.0

Subtask #2
9.0 / 9.0

Subtask #3
84.0 / 84.0