oj.uz

Submission #105342

# Submission time Handle Problem Language Result Execution time Memory
105342 2019-04-11T13:14:08 Z he_____he Construction of Highway (JOI18_construction) C++14
100 / 100
 260 ms 7544 KB 
#include<bits/stdc++.h>

#define pii pair<int,int>
#define mp make_pair
#define fi first
#define se second

using namespace std;

typedef long long ll;

int readint(){
	int x=0,f=1; char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();}
	return x*f;
}

ll ans;
int n;
int ch[100005][2],fa[100005],siz[100005],val[100005],rev[100005],p[100005];
ll c[100005];
vector<pii> v;

int lowbit(int x){return x&(-x);}
void add(int x,int k){for(;x<=n;x+=lowbit(x))c[x]+=k;}
ll ask(int x){ll ret=0;for(;x;x-=lowbit(x))ret+=c[x];return ret;}
bool nroot(int x){return ch[fa[x]][0]==x||ch[fa[x]][1]==x;}
bool son(int x){return ch[fa[x]][1]==x;}
void reverse(int x){rev[x]^=1,swap(ch[x][0],ch[x][1]);}
void pushdown(int x){if(rev[x])reverse(ch[x][0]),reverse(ch[x][1]),rev[x]=0;}
void update(int x){siz[x]=1+siz[ch[x][0]]+siz[ch[x][1]];}

void rotate(int x){
	int y=fa[x],z=fa[y],k=son(x),w=ch[x][!k];
	if(nroot(y)) ch[z][son(y)]=x;
	ch[x][!k]=y,ch[y][k]=w;
	if(w) fa[w]=y;
	fa[y]=x,fa[x]=z;
	if(!nroot(x)) val[x]=val[y];
	update(y),update(x);
}

void pushall(int x){
	if(nroot(x)) pushall(fa[x]);
	pushdown(x);
}

void splay(int x){
	pushall(x);
	while(nroot(x)){
		int y=fa[x];
		if(nroot(y)) rotate(son(x)==son(y)?y:x);
		rotate(x);
	}
}

void access(int x,int k=0){
	for(int y=0;x;x=fa[y=x]){
		splay(x);
		val[ch[x][1]]=val[x],ch[x][1]=y;
		update(x);
		if(k) ans+=1ll*(siz[x]-siz[ch[x][1]])*ask(val[x]-1);
		if(k) add(val[x],siz[x]-siz[ch[x][1]]),v.push_back(mp(val[x],siz[x]-siz[ch[x][1]]));
		if(k) val[x]=k;
	}
}

void makeroot(int x){access(x); splay(x); reverse(x);}

int main(){
	n=readint();
	for(int i=1;i<=n;i++) p[i]=val[i]=readint();
	sort(p+1,p+n+1);
	for(int i=1;i<=n;i++) val[i]=lower_bound(p+1,p+n+1,val[i])-p;
	for(int i=1;i<=n;i++) siz[i]=1;
	int x,y;
	for(int i=1;i<=n-1;i++){
		x=readint(); y=readint();
		ans=0;
//		cout<<"###########################"<<endl;
//		for(int j=1;j<=n;j++) cout<<j<<' '<<fa[j]<<' '<<ch[j][0]<<' '<<ch[j][1]<<' '<<val[j]<<' '<<siz[j]<<endl;
//		cout<<"###########################"<<endl;
		access(x,val[y]);
		printf("%lld\n",ans);
		fa[y]=x;
		for(int j=0;j<v.size();j++) add(v[j].fi,-v[j].se);
		v.clear();
	}
	return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:87:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<v.size();j++) add(v[j].fi,-v[j].se);
               ~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 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 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 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 1 ms 384 KB Output is correct
14 Correct 3 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 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 3 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 3 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 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 3 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 3 ms 384 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 3 ms 384 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 3 ms 384 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 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 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 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 1 ms 384 KB Output is correct
14 Correct 3 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 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 3 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 3 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 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 3 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 3 ms 384 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 3 ms 384 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 3 ms 384 KB Output is correct
45 Correct 3 ms 384 KB Output is correct
46 Correct 5 ms 512 KB Output is correct
47 Correct 6 ms 640 KB Output is correct
48 Correct 6 ms 640 KB Output is correct
49 Correct 6 ms 640 KB Output is correct
50 Correct 15 ms 512 KB Output is correct
51 Correct 5 ms 560 KB Output is correct
52 Correct 4 ms 512 KB Output is correct
53 Correct 6 ms 612 KB Output is correct
54 Correct 5 ms 640 KB Output is correct
55 Correct 6 ms 640 KB Output is correct
56 Correct 5 ms 640 KB Output is correct
57 Correct 6 ms 512 KB Output is correct
58 Correct 8 ms 640 KB Output is correct
59 Correct 6 ms 512 KB Output is correct
60 Correct 6 ms 512 KB Output is correct
61 Correct 6 ms 640 KB Output is correct
62 Correct 6 ms 640 KB Output is correct
63 Correct 6 ms 640 KB Output is correct
64 Correct 5 ms 512 KB Output is correct
65 Correct 5 ms 512 KB Output is correct
66 Correct 5 ms 512 KB Output is correct
67 Correct 6 ms 512 KB Output is correct
68 Correct 4 ms 512 KB Output is correct
69 Correct 5 ms 640 KB Output is correct
70 Correct 4 ms 640 KB Output is correct
71 Correct 6 ms 640 KB Output is correct
72 Correct 6 ms 512 KB Output is correct
73 Correct 6 ms 512 KB Output is correct
74 Correct 5 ms 512 KB Output is correct
75 Correct 5 ms 640 KB Output is correct
76 Correct 5 ms 512 KB Output is correct
77 Correct 5 ms 512 KB Output is correct
78 Correct 5 ms 640 KB Output is correct
79 Correct 5 ms 512 KB Output is correct
80 Correct 4 ms 588 KB Output is correct
81 Correct 6 ms 640 KB Output is correct
82 Correct 6 ms 640 KB Output is correct
83 Correct 6 ms 640 KB Output is correct
84 Correct 7 ms 640 KB Output is correct
85 Correct 6 ms 512 KB Output is correct
86 Correct 6 ms 512 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 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 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 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 1 ms 384 KB Output is correct
14 Correct 3 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 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 3 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 3 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 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 3 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 3 ms 384 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 3 ms 384 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 3 ms 384 KB Output is correct
45 Correct 3 ms 384 KB Output is correct
46 Correct 5 ms 512 KB Output is correct
47 Correct 6 ms 640 KB Output is correct
48 Correct 6 ms 640 KB Output is correct
49 Correct 6 ms 640 KB Output is correct
50 Correct 15 ms 512 KB Output is correct
51 Correct 5 ms 560 KB Output is correct
52 Correct 4 ms 512 KB Output is correct
53 Correct 6 ms 612 KB Output is correct
54 Correct 5 ms 640 KB Output is correct
55 Correct 6 ms 640 KB Output is correct
56 Correct 5 ms 640 KB Output is correct
57 Correct 6 ms 512 KB Output is correct
58 Correct 8 ms 640 KB Output is correct
59 Correct 6 ms 512 KB Output is correct
60 Correct 6 ms 512 KB Output is correct
61 Correct 6 ms 640 KB Output is correct
62 Correct 6 ms 640 KB Output is correct
63 Correct 6 ms 640 KB Output is correct
64 Correct 5 ms 512 KB Output is correct
65 Correct 5 ms 512 KB Output is correct
66 Correct 5 ms 512 KB Output is correct
67 Correct 6 ms 512 KB Output is correct
68 Correct 4 ms 512 KB Output is correct
69 Correct 5 ms 640 KB Output is correct
70 Correct 4 ms 640 KB Output is correct
71 Correct 6 ms 640 KB Output is correct
72 Correct 6 ms 512 KB Output is correct
73 Correct 6 ms 512 KB Output is correct
74 Correct 5 ms 512 KB Output is correct
75 Correct 5 ms 640 KB Output is correct
76 Correct 5 ms 512 KB Output is correct
77 Correct 5 ms 512 KB Output is correct
78 Correct 5 ms 640 KB Output is correct
79 Correct 5 ms 512 KB Output is correct
80 Correct 4 ms 588 KB Output is correct
81 Correct 6 ms 640 KB Output is correct
82 Correct 6 ms 640 KB Output is correct
83 Correct 6 ms 640 KB Output is correct
84 Correct 7 ms 640 KB Output is correct
85 Correct 6 ms 512 KB Output is correct
86 Correct 6 ms 512 KB Output is correct
87 Correct 11 ms 896 KB Output is correct
88 Correct 35 ms 2040 KB Output is correct
89 Correct 165 ms 5900 KB Output is correct
90 Correct 167 ms 5904 KB Output is correct
91 Correct 151 ms 5880 KB Output is correct
92 Correct 97 ms 5752 KB Output is correct
93 Correct 95 ms 5880 KB Output is correct
94 Correct 82 ms 5752 KB Output is correct
95 Correct 74 ms 6016 KB Output is correct
96 Correct 94 ms 6480 KB Output is correct
97 Correct 83 ms 6492 KB Output is correct
98 Correct 83 ms 6400 KB Output is correct
99 Correct 90 ms 7544 KB Output is correct
100 Correct 185 ms 5624 KB Output is correct
101 Correct 260 ms 6008 KB Output is correct
102 Correct 213 ms 6008 KB Output is correct
103 Correct 213 ms 5880 KB Output is correct
104 Correct 136 ms 6904 KB Output is correct
105 Correct 147 ms 7160 KB Output is correct
106 Correct 177 ms 6572 KB Output is correct
107 Correct 142 ms 4344 KB Output is correct
108 Correct 156 ms 4984 KB Output is correct
109 Correct 171 ms 5496 KB Output is correct
110 Correct 82 ms 5240 KB Output is correct
111 Correct 92 ms 6112 KB Output is correct
112 Correct 116 ms 5848 KB Output is correct
113 Correct 88 ms 6904 KB Output is correct
114 Correct 157 ms 5580 KB Output is correct
115 Correct 209 ms 5412 KB Output is correct
116 Correct 160 ms 6272 KB Output is correct
117 Correct 125 ms 6520 KB Output is correct
118 Correct 97 ms 6296 KB Output is correct
119 Correct 121 ms 5880 KB Output is correct
120 Correct 90 ms 6008 KB Output is correct
121 Correct 107 ms 5752 KB Output is correct
122 Correct 94 ms 5672 KB Output is correct
123 Correct 157 ms 6424 KB Output is correct
124 Correct 167 ms 6136 KB Output is correct
125 Correct 157 ms 6148 KB Output is correct
126 Correct 152 ms 6012 KB Output is correct
127 Correct 147 ms 5996 KB Output is correct
128 Correct 151 ms 5624 KB Output is correct