oj.uz

Submission #49056

# Submission time Handle Problem Language Result Execution time Memory
49056 2018-05-21T14:46:16 Z Namnamseo Construction of Highway (JOI18_construction) C++17
100 / 100
 984 ms 93404 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
typedef pair<ll,ll> pll;
void read(int& x){ scanf("%d",&x); }
void read(ll& x){ scanf("%lld",&x); }
template<typename T,typename... Args>
void read(T& a,Args&... b){ read(a); read(b...); }
#define all(x) (x).begin(),(x).end()
#define pb push_back
#define eb emplace_back
#define x first
#define y second

int n;
int wow[100010];

int wp[100010], wn;

int p[20][100010];
int d[100010];
int c[100010];
int l[100010];

const int M=131072;
pp t[M<<1];
pp rmax(int l, int r){
	l+=M; r+=M;
	pp ret;
	while(l<=r){
		if(l%2==1) ret=max(ret, t[l++]);
		if(r%2==0) ret=max(ret, t[r--]); l/=2; r/=2;
	}
	return ret;
}
int a[100010];
int b[100010];
vector<int> e[100010];
int I[100010], O[100010];
void dfs(int x){ static int T=0; I[x]=++T; for(int y:e[x]) d[y]=d[x]+1, dfs(y); O[x]=T; }
int GC(int x){ return rmax(I[x], O[x]).y; }
void tupd(int i){
	int p=I[i]+M; static int TT=0; ++TT;
	while(p) t[p].x=TT, t[p].y=i, p/=2;
}

int q[100010], z;
int k[100010];
int Q[100010], N;
int F[100010];
ll WOW(){
	for(int i=0; i<z; ++i) Q[i]=q[i];
	sort(Q, Q+z); N=unique(Q, Q+z)-Q;
	for(int i=1; i<=N; ++i) F[i]=0;
	ll ret=0;
	for(int i=0; i<z; ++i){
		int p=lower_bound(Q, Q+N, q[i])-Q+1;
		int q=p-1;
		while(q) ret+=F[q]*1LL*k[i], q&=(q-1);
		while(p<=N) F[p]+=k[i], p+=(p&(-p));
	}
	return ret;
}

int main()
{
	read(n);
	for(int i=1; i<=n; ++i) read(wow[i]);
	for(int i=1; i<n; ++i){
		read(a[i], b[i]); e[a[i]].pb(b[i]); p[0][b[i]]=a[i];
	}
	for(int i=1; i<=16; ++i) for(int j=1; j<=n; ++j) p[i][j]=p[i-1][p[i-1][j]];
	dfs(1);
	tupd(1); l[1]=1;
	for(int i=1; i<n; ++i){
		z = 0;
		int A=a[i], B=b[i];
		for(int i=A;i;){
			int cc=GC(i);
			q[z]=wow[cc]; k[z]=d[i]-d[l[cc]]+1; ++z;
			int nx=l[cc];
			if(d[cc]>=d[i]+1){
				int df=d[cc]-(d[i]+1), dn=cc;
				for(int i=0; i<=16; ++i) if(1&(df>>i)) dn=p[i][dn];
				l[cc]=dn;
			}
			i=p[0][nx];
		}
		l[B]=1;
		tupd(B);
		printf("%lld\n", WOW());
	}
	return 0;
}

Compilation message

construction.cpp: In function 'pp rmax(int, int)':
construction.cpp:33:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(r%2==0) ret=max(ret, t[r--]); l/=2; r/=2;
   ^~
construction.cpp:33:36: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   if(r%2==0) ret=max(ret, t[r--]); l/=2; r/=2;
                                    ^
construction.cpp: In function 'void read(int&)':
construction.cpp:6:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void read(int& x){ scanf("%d",&x); }
                    ~~~~~^~~~~~~~~
construction.cpp: In function 'void read(ll&)':
construction.cpp:7:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void read(ll& x){ scanf("%lld",&x); }
                   ~~~~~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 4 ms 3052 KB Output is correct
3 Correct 4 ms 3052 KB Output is correct
4 Correct 5 ms 3092 KB Output is correct
5 Correct 5 ms 3228 KB Output is correct
6 Correct 5 ms 3240 KB Output is correct
7 Correct 4 ms 3312 KB Output is correct
8 Correct 4 ms 3312 KB Output is correct
9 Correct 5 ms 3324 KB Output is correct
10 Correct 4 ms 3348 KB Output is correct
11 Correct 5 ms 3376 KB Output is correct
12 Correct 5 ms 3516 KB Output is correct
13 Correct 5 ms 3520 KB Output is correct
14 Correct 5 ms 3600 KB Output is correct
15 Correct 5 ms 3612 KB Output is correct
16 Correct 5 ms 3620 KB Output is correct
17 Correct 6 ms 3648 KB Output is correct
18 Correct 6 ms 3660 KB Output is correct
19 Correct 6 ms 3672 KB Output is correct
20 Correct 5 ms 3684 KB Output is correct
21 Correct 5 ms 3684 KB Output is correct
22 Correct 6 ms 3712 KB Output is correct
23 Correct 5 ms 3716 KB Output is correct
24 Correct 5 ms 3724 KB Output is correct
25 Correct 5 ms 3732 KB Output is correct
26 Correct 4 ms 3740 KB Output is correct
27 Correct 4 ms 3748 KB Output is correct
28 Correct 5 ms 3836 KB Output is correct
29 Correct 5 ms 3836 KB Output is correct
30 Correct 5 ms 3836 KB Output is correct
31 Correct 5 ms 3836 KB Output is correct
32 Correct 5 ms 3836 KB Output is correct
33 Correct 5 ms 3836 KB Output is correct
34 Correct 4 ms 3836 KB Output is correct
35 Correct 5 ms 3836 KB Output is correct
36 Correct 4 ms 3836 KB Output is correct
37 Correct 4 ms 3836 KB Output is correct
38 Correct 5 ms 3836 KB Output is correct
39 Correct 4 ms 3844 KB Output is correct
40 Correct 6 ms 3852 KB Output is correct
41 Correct 6 ms 3860 KB Output is correct
42 Correct 6 ms 3868 KB Output is correct
43 Correct 6 ms 3876 KB Output is correct
44 Correct 6 ms 3884 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 4 ms 3052 KB Output is correct
3 Correct 4 ms 3052 KB Output is correct
4 Correct 5 ms 3092 KB Output is correct
5 Correct 5 ms 3228 KB Output is correct
6 Correct 5 ms 3240 KB Output is correct
7 Correct 4 ms 3312 KB Output is correct
8 Correct 4 ms 3312 KB Output is correct
9 Correct 5 ms 3324 KB Output is correct
10 Correct 4 ms 3348 KB Output is correct
11 Correct 5 ms 3376 KB Output is correct
12 Correct 5 ms 3516 KB Output is correct
13 Correct 5 ms 3520 KB Output is correct
14 Correct 5 ms 3600 KB Output is correct
15 Correct 5 ms 3612 KB Output is correct
16 Correct 5 ms 3620 KB Output is correct
17 Correct 6 ms 3648 KB Output is correct
18 Correct 6 ms 3660 KB Output is correct
19 Correct 6 ms 3672 KB Output is correct
20 Correct 5 ms 3684 KB Output is correct
21 Correct 5 ms 3684 KB Output is correct
22 Correct 6 ms 3712 KB Output is correct
23 Correct 5 ms 3716 KB Output is correct
24 Correct 5 ms 3724 KB Output is correct
25 Correct 5 ms 3732 KB Output is correct
26 Correct 4 ms 3740 KB Output is correct
27 Correct 4 ms 3748 KB Output is correct
28 Correct 5 ms 3836 KB Output is correct
29 Correct 5 ms 3836 KB Output is correct
30 Correct 5 ms 3836 KB Output is correct
31 Correct 5 ms 3836 KB Output is correct
32 Correct 5 ms 3836 KB Output is correct
33 Correct 5 ms 3836 KB Output is correct
34 Correct 4 ms 3836 KB Output is correct
35 Correct 5 ms 3836 KB Output is correct
36 Correct 4 ms 3836 KB Output is correct
37 Correct 4 ms 3836 KB Output is correct
38 Correct 5 ms 3836 KB Output is correct
39 Correct 4 ms 3844 KB Output is correct
40 Correct 6 ms 3852 KB Output is correct
41 Correct 6 ms 3860 KB Output is correct
42 Correct 6 ms 3868 KB Output is correct
43 Correct 6 ms 3876 KB Output is correct
44 Correct 6 ms 3884 KB Output is correct
45 Correct 6 ms 3892 KB Output is correct
46 Correct 16 ms 4424 KB Output is correct
47 Correct 12 ms 4500 KB Output is correct
48 Correct 11 ms 4576 KB Output is correct
49 Correct 7 ms 4780 KB Output is correct
50 Correct 10 ms 4856 KB Output is correct
51 Correct 11 ms 4932 KB Output is correct
52 Correct 10 ms 4932 KB Output is correct
53 Correct 10 ms 4940 KB Output is correct
54 Correct 10 ms 5144 KB Output is correct
55 Correct 11 ms 5144 KB Output is correct
56 Correct 9 ms 5168 KB Output is correct
57 Correct 13 ms 5248 KB Output is correct
58 Correct 18 ms 5300 KB Output is correct
59 Correct 19 ms 5504 KB Output is correct
60 Correct 17 ms 5504 KB Output is correct
61 Correct 11 ms 5528 KB Output is correct
62 Correct 13 ms 5604 KB Output is correct
63 Correct 13 ms 5680 KB Output is correct
64 Correct 11 ms 5756 KB Output is correct
65 Correct 12 ms 5804 KB Output is correct
66 Correct 11 ms 5852 KB Output is correct
67 Correct 12 ms 5904 KB Output is correct
68 Correct 9 ms 6088 KB Output is correct
69 Correct 9 ms 6088 KB Output is correct
70 Correct 9 ms 6096 KB Output is correct
71 Correct 10 ms 6144 KB Output is correct
72 Correct 15 ms 6192 KB Output is correct
73 Correct 14 ms 6248 KB Output is correct
74 Correct 10 ms 6296 KB Output is correct
75 Correct 11 ms 6348 KB Output is correct
76 Correct 9 ms 6360 KB Output is correct
77 Correct 9 ms 6504 KB Output is correct
78 Correct 10 ms 6536 KB Output is correct
79 Correct 9 ms 6584 KB Output is correct
80 Correct 12 ms 6632 KB Output is correct
81 Correct 10 ms 6680 KB Output is correct
82 Correct 11 ms 6744 KB Output is correct
83 Correct 10 ms 6808 KB Output is correct
84 Correct 9 ms 7000 KB Output is correct
85 Correct 9 ms 7000 KB Output is correct
86 Correct 8 ms 7028 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 4 ms 3052 KB Output is correct
3 Correct 4 ms 3052 KB Output is correct
4 Correct 5 ms 3092 KB Output is correct
5 Correct 5 ms 3228 KB Output is correct
6 Correct 5 ms 3240 KB Output is correct
7 Correct 4 ms 3312 KB Output is correct
8 Correct 4 ms 3312 KB Output is correct
9 Correct 5 ms 3324 KB Output is correct
10 Correct 4 ms 3348 KB Output is correct
11 Correct 5 ms 3376 KB Output is correct
12 Correct 5 ms 3516 KB Output is correct
13 Correct 5 ms 3520 KB Output is correct
14 Correct 5 ms 3600 KB Output is correct
15 Correct 5 ms 3612 KB Output is correct
16 Correct 5 ms 3620 KB Output is correct
17 Correct 6 ms 3648 KB Output is correct
18 Correct 6 ms 3660 KB Output is correct
19 Correct 6 ms 3672 KB Output is correct
20 Correct 5 ms 3684 KB Output is correct
21 Correct 5 ms 3684 KB Output is correct
22 Correct 6 ms 3712 KB Output is correct
23 Correct 5 ms 3716 KB Output is correct
24 Correct 5 ms 3724 KB Output is correct
25 Correct 5 ms 3732 KB Output is correct
26 Correct 4 ms 3740 KB Output is correct
27 Correct 4 ms 3748 KB Output is correct
28 Correct 5 ms 3836 KB Output is correct
29 Correct 5 ms 3836 KB Output is correct
30 Correct 5 ms 3836 KB Output is correct
31 Correct 5 ms 3836 KB Output is correct
32 Correct 5 ms 3836 KB Output is correct
33 Correct 5 ms 3836 KB Output is correct
34 Correct 4 ms 3836 KB Output is correct
35 Correct 5 ms 3836 KB Output is correct
36 Correct 4 ms 3836 KB Output is correct
37 Correct 4 ms 3836 KB Output is correct
38 Correct 5 ms 3836 KB Output is correct
39 Correct 4 ms 3844 KB Output is correct
40 Correct 6 ms 3852 KB Output is correct
41 Correct 6 ms 3860 KB Output is correct
42 Correct 6 ms 3868 KB Output is correct
43 Correct 6 ms 3876 KB Output is correct
44 Correct 6 ms 3884 KB Output is correct
45 Correct 6 ms 3892 KB Output is correct
46 Correct 16 ms 4424 KB Output is correct
47 Correct 12 ms 4500 KB Output is correct
48 Correct 11 ms 4576 KB Output is correct
49 Correct 7 ms 4780 KB Output is correct
50 Correct 10 ms 4856 KB Output is correct
51 Correct 11 ms 4932 KB Output is correct
52 Correct 10 ms 4932 KB Output is correct
53 Correct 10 ms 4940 KB Output is correct
54 Correct 10 ms 5144 KB Output is correct
55 Correct 11 ms 5144 KB Output is correct
56 Correct 9 ms 5168 KB Output is correct
57 Correct 13 ms 5248 KB Output is correct
58 Correct 18 ms 5300 KB Output is correct
59 Correct 19 ms 5504 KB Output is correct
60 Correct 17 ms 5504 KB Output is correct
61 Correct 11 ms 5528 KB Output is correct
62 Correct 13 ms 5604 KB Output is correct
63 Correct 13 ms 5680 KB Output is correct
64 Correct 11 ms 5756 KB Output is correct
65 Correct 12 ms 5804 KB Output is correct
66 Correct 11 ms 5852 KB Output is correct
67 Correct 12 ms 5904 KB Output is correct
68 Correct 9 ms 6088 KB Output is correct
69 Correct 9 ms 6088 KB Output is correct
70 Correct 9 ms 6096 KB Output is correct
71 Correct 10 ms 6144 KB Output is correct
72 Correct 15 ms 6192 KB Output is correct
73 Correct 14 ms 6248 KB Output is correct
74 Correct 10 ms 6296 KB Output is correct
75 Correct 11 ms 6348 KB Output is correct
76 Correct 9 ms 6360 KB Output is correct
77 Correct 9 ms 6504 KB Output is correct
78 Correct 10 ms 6536 KB Output is correct
79 Correct 9 ms 6584 KB Output is correct
80 Correct 12 ms 6632 KB Output is correct
81 Correct 10 ms 6680 KB Output is correct
82 Correct 11 ms 6744 KB Output is correct
83 Correct 10 ms 6808 KB Output is correct
84 Correct 9 ms 7000 KB Output is correct
85 Correct 9 ms 7000 KB Output is correct
86 Correct 8 ms 7028 KB Output is correct
87 Correct 26 ms 7788 KB Output is correct
88 Correct 87 ms 11052 KB Output is correct
89 Correct 450 ms 22144 KB Output is correct
90 Correct 400 ms 24380 KB Output is correct
91 Correct 353 ms 26296 KB Output is correct
92 Correct 156 ms 33040 KB Output is correct
93 Correct 168 ms 35272 KB Output is correct
94 Correct 159 ms 37400 KB Output is correct
95 Correct 138 ms 37400 KB Output is correct
96 Correct 158 ms 38780 KB Output is correct
97 Correct 178 ms 40832 KB Output is correct
98 Correct 244 ms 43004 KB Output is correct
99 Correct 235 ms 44476 KB Output is correct
100 Correct 675 ms 45132 KB Output is correct
101 Correct 684 ms 47220 KB Output is correct
102 Correct 881 ms 49384 KB Output is correct
103 Correct 984 ms 51592 KB Output is correct
104 Correct 290 ms 54648 KB Output is correct
105 Correct 259 ms 56744 KB Output is correct
106 Correct 304 ms 58944 KB Output is correct
107 Correct 412 ms 58944 KB Output is correct
108 Correct 433 ms 60196 KB Output is correct
109 Correct 524 ms 61936 KB Output is correct
110 Correct 139 ms 67952 KB Output is correct
111 Correct 152 ms 67952 KB Output is correct
112 Correct 165 ms 68728 KB Output is correct
113 Correct 205 ms 69724 KB Output is correct
114 Correct 838 ms 70400 KB Output is correct
115 Correct 842 ms 71884 KB Output is correct
116 Correct 252 ms 74372 KB Output is correct
117 Correct 244 ms 75480 KB Output is correct
118 Correct 185 ms 76988 KB Output is correct
119 Correct 164 ms 78632 KB Output is correct
120 Correct 144 ms 80588 KB Output is correct
121 Correct 191 ms 81948 KB Output is correct
122 Correct 203 ms 83264 KB Output is correct
123 Correct 298 ms 85652 KB Output is correct
124 Correct 271 ms 87172 KB Output is correct
125 Correct 287 ms 88876 KB Output is correct
126 Correct 325 ms 90832 KB Output is correct
127 Correct 265 ms 92128 KB Output is correct
128 Correct 301 ms 93404 KB Output is correct