oj.uz

Submission #56343

# Submission time Handle Problem Language Result Execution time Memory
56343 2018-07-11T05:29:06 Z 김세빈(#1599) Construction of Highway (JOI18_construction) C++11
100 / 100
 594 ms 18172 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair <ll, ll> pll;

vector <ll> V[101010], X;
vector <pll> M;
ll A[101010], B[101010], C[101010];
ll D[101010], L[101010], R[101010], K[101010];
ll T[303030], P[101010];
ll n, cnt, sz;

ll dfs_order(ll p)
{
	L[p] = R[p] = ++cnt;
	
	for(auto t: V[p]){
		D[t] = D[p] + 1;
		R[p] = dfs_order(t);
	}
	
	return R[p];
}

void insert(ll p, ll v)
{
	p += sz; T[p] = v;
	for(p>>=1;p;p>>=1){
		T[p] = max(T[p<<1], T[p<<1|1]);
	}
}

ll get_max(ll l, ll r)
{
	ll ret = 0;
	
	l += sz, r += sz;
	for(ret=0;l<r;){
		if(l & 1) ret = max(ret, T[l]);
		if(~r & 1) ret = max(ret, T[r]);
		l = l+1 >> 1;
		r = r-1 >> 1;
	}
	if(l == r) ret = max(ret, T[l]);
	
	return ret;
}

void change(ll p, ll v)
{
	for(;p<=n;p+=p&(-p)){
		P[p] += v;
	}
}

ll get_sum(ll p)
{
	ll ret = 0;
	
	for(;p;p-=p&(-p)){
		ret += P[p];
	}
	
	return ret;
}

int main()
{
	ll i, p, k, s, c, d;
	
	scanf("%lld", &n);
	
	for(sz=1;sz<n;sz<<=1);
	
	for(i=1;i<=n;i++){
		scanf("%lld", C+i);
		X.push_back(C[i]);
	}
	
	sort(X.begin(), X.end());
	X.erase(unique(X.begin(), X.end()), X.end());
	
	for(i=1;i<=n;i++){
		C[i] = lower_bound(X.begin(), X.end(), C[i]) - X.begin() + 1;
	}
	
	B[0] = 1;
	for(i=1;i<n;i++){
		scanf("%lld%lld", A+i, B+i);
		V[A[i]].push_back(B[i]);
	}
	
	D[1] = 1;
	dfs_order(1);
	
	for(i=1;i<n;i++){
		M.clear();
		s = 0;
		
		for(p=A[i];p!=0;){
			k = get_max(L[p], R[p]);
			
			c = C[B[k]], d = D[p] - D[K[k]];
			s += get_sum(c - 1) * d;
			change(c, d);
			M.push_back(pll(c, -d));
			
			swap(K[k], p);
		}
		
		printf("%lld\n", s);
		
		for(pll t: M) change(t.first, t.second);
		
		insert(L[B[i]], i);
		K[i] = 0;
	}
	
	return 0;
}

Compilation message

construction.cpp: In function 'll get_max(ll, ll)':
construction.cpp:43:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   l = l+1 >> 1;
       ~^~
construction.cpp:44:8: warning: suggest parentheses around '-' inside '>>' [-Wparentheses]
   r = r-1 >> 1;
       ~^~
construction.cpp: In function 'int main()':
construction.cpp:73:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &n);
  ~~~~~^~~~~~~~~~~~
construction.cpp:78:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", C+i);
   ~~~~~^~~~~~~~~~~~~
construction.cpp:91:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", A+i, B+i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2920 KB Output is correct
3 Correct 4 ms 2976 KB Output is correct
4 Correct 5 ms 2976 KB Output is correct
5 Correct 5 ms 2976 KB Output is correct
6 Correct 4 ms 2984 KB Output is correct
7 Correct 4 ms 2984 KB Output is correct
8 Correct 4 ms 2984 KB Output is correct
9 Correct 4 ms 3000 KB Output is correct
10 Correct 4 ms 3044 KB Output is correct
11 Correct 5 ms 3044 KB Output is correct
12 Correct 5 ms 3052 KB Output is correct
13 Correct 6 ms 3052 KB Output is correct
14 Correct 6 ms 3052 KB Output is correct
15 Correct 6 ms 3052 KB Output is correct
16 Correct 4 ms 3052 KB Output is correct
17 Correct 5 ms 3052 KB Output is correct
18 Correct 5 ms 3068 KB Output is correct
19 Correct 5 ms 3068 KB Output is correct
20 Correct 5 ms 3068 KB Output is correct
21 Correct 5 ms 3068 KB Output is correct
22 Correct 5 ms 3068 KB Output is correct
23 Correct 5 ms 3068 KB Output is correct
24 Correct 5 ms 3068 KB Output is correct
25 Correct 6 ms 3068 KB Output is correct
26 Correct 6 ms 3068 KB Output is correct
27 Correct 5 ms 3068 KB Output is correct
28 Correct 5 ms 3068 KB Output is correct
29 Correct 4 ms 3068 KB Output is correct
30 Correct 4 ms 3068 KB Output is correct
31 Correct 4 ms 3068 KB Output is correct
32 Correct 4 ms 3068 KB Output is correct
33 Correct 5 ms 3068 KB Output is correct
34 Correct 4 ms 3068 KB Output is correct
35 Correct 8 ms 3068 KB Output is correct
36 Correct 5 ms 3068 KB Output is correct
37 Correct 5 ms 3068 KB Output is correct
38 Correct 5 ms 3068 KB Output is correct
39 Correct 5 ms 3068 KB Output is correct
40 Correct 6 ms 3068 KB Output is correct
41 Correct 4 ms 3068 KB Output is correct
42 Correct 5 ms 3068 KB Output is correct
43 Correct 5 ms 3068 KB Output is correct
44 Correct 5 ms 3068 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2920 KB Output is correct
3 Correct 4 ms 2976 KB Output is correct
4 Correct 5 ms 2976 KB Output is correct
5 Correct 5 ms 2976 KB Output is correct
6 Correct 4 ms 2984 KB Output is correct
7 Correct 4 ms 2984 KB Output is correct
8 Correct 4 ms 2984 KB Output is correct
9 Correct 4 ms 3000 KB Output is correct
10 Correct 4 ms 3044 KB Output is correct
11 Correct 5 ms 3044 KB Output is correct
12 Correct 5 ms 3052 KB Output is correct
13 Correct 6 ms 3052 KB Output is correct
14 Correct 6 ms 3052 KB Output is correct
15 Correct 6 ms 3052 KB Output is correct
16 Correct 4 ms 3052 KB Output is correct
17 Correct 5 ms 3052 KB Output is correct
18 Correct 5 ms 3068 KB Output is correct
19 Correct 5 ms 3068 KB Output is correct
20 Correct 5 ms 3068 KB Output is correct
21 Correct 5 ms 3068 KB Output is correct
22 Correct 5 ms 3068 KB Output is correct
23 Correct 5 ms 3068 KB Output is correct
24 Correct 5 ms 3068 KB Output is correct
25 Correct 6 ms 3068 KB Output is correct
26 Correct 6 ms 3068 KB Output is correct
27 Correct 5 ms 3068 KB Output is correct
28 Correct 5 ms 3068 KB Output is correct
29 Correct 4 ms 3068 KB Output is correct
30 Correct 4 ms 3068 KB Output is correct
31 Correct 4 ms 3068 KB Output is correct
32 Correct 4 ms 3068 KB Output is correct
33 Correct 5 ms 3068 KB Output is correct
34 Correct 4 ms 3068 KB Output is correct
35 Correct 8 ms 3068 KB Output is correct
36 Correct 5 ms 3068 KB Output is correct
37 Correct 5 ms 3068 KB Output is correct
38 Correct 5 ms 3068 KB Output is correct
39 Correct 5 ms 3068 KB Output is correct
40 Correct 6 ms 3068 KB Output is correct
41 Correct 4 ms 3068 KB Output is correct
42 Correct 5 ms 3068 KB Output is correct
43 Correct 5 ms 3068 KB Output is correct
44 Correct 5 ms 3068 KB Output is correct
45 Correct 5 ms 3068 KB Output is correct
46 Correct 10 ms 3452 KB Output is correct
47 Correct 11 ms 3488 KB Output is correct
48 Correct 9 ms 3488 KB Output is correct
49 Correct 10 ms 3612 KB Output is correct
50 Correct 9 ms 3612 KB Output is correct
51 Correct 8 ms 3628 KB Output is correct
52 Correct 8 ms 3628 KB Output is correct
53 Correct 7 ms 3644 KB Output is correct
54 Correct 8 ms 3644 KB Output is correct
55 Correct 8 ms 3644 KB Output is correct
56 Correct 8 ms 3644 KB Output is correct
57 Correct 11 ms 3680 KB Output is correct
58 Correct 14 ms 3680 KB Output is correct
59 Correct 13 ms 3680 KB Output is correct
60 Correct 13 ms 3680 KB Output is correct
61 Correct 8 ms 3680 KB Output is correct
62 Correct 8 ms 3680 KB Output is correct
63 Correct 14 ms 3680 KB Output is correct
64 Correct 11 ms 3680 KB Output is correct
65 Correct 12 ms 3680 KB Output is correct
66 Correct 11 ms 3680 KB Output is correct
67 Correct 13 ms 3680 KB Output is correct
68 Correct 13 ms 3680 KB Output is correct
69 Correct 8 ms 3680 KB Output is correct
70 Correct 8 ms 3680 KB Output is correct
71 Correct 9 ms 3680 KB Output is correct
72 Correct 10 ms 3680 KB Output is correct
73 Correct 14 ms 3680 KB Output is correct
74 Correct 8 ms 3680 KB Output is correct
75 Correct 8 ms 3680 KB Output is correct
76 Correct 7 ms 3680 KB Output is correct
77 Correct 7 ms 3680 KB Output is correct
78 Correct 7 ms 3680 KB Output is correct
79 Correct 7 ms 3680 KB Output is correct
80 Correct 7 ms 3680 KB Output is correct
81 Correct 11 ms 3680 KB Output is correct
82 Correct 12 ms 3680 KB Output is correct
83 Correct 8 ms 3680 KB Output is correct
84 Correct 7 ms 3680 KB Output is correct
85 Correct 7 ms 3680 KB Output is correct
86 Correct 7 ms 3680 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2920 KB Output is correct
3 Correct 4 ms 2976 KB Output is correct
4 Correct 5 ms 2976 KB Output is correct
5 Correct 5 ms 2976 KB Output is correct
6 Correct 4 ms 2984 KB Output is correct
7 Correct 4 ms 2984 KB Output is correct
8 Correct 4 ms 2984 KB Output is correct
9 Correct 4 ms 3000 KB Output is correct
10 Correct 4 ms 3044 KB Output is correct
11 Correct 5 ms 3044 KB Output is correct
12 Correct 5 ms 3052 KB Output is correct
13 Correct 6 ms 3052 KB Output is correct
14 Correct 6 ms 3052 KB Output is correct
15 Correct 6 ms 3052 KB Output is correct
16 Correct 4 ms 3052 KB Output is correct
17 Correct 5 ms 3052 KB Output is correct
18 Correct 5 ms 3068 KB Output is correct
19 Correct 5 ms 3068 KB Output is correct
20 Correct 5 ms 3068 KB Output is correct
21 Correct 5 ms 3068 KB Output is correct
22 Correct 5 ms 3068 KB Output is correct
23 Correct 5 ms 3068 KB Output is correct
24 Correct 5 ms 3068 KB Output is correct
25 Correct 6 ms 3068 KB Output is correct
26 Correct 6 ms 3068 KB Output is correct
27 Correct 5 ms 3068 KB Output is correct
28 Correct 5 ms 3068 KB Output is correct
29 Correct 4 ms 3068 KB Output is correct
30 Correct 4 ms 3068 KB Output is correct
31 Correct 4 ms 3068 KB Output is correct
32 Correct 4 ms 3068 KB Output is correct
33 Correct 5 ms 3068 KB Output is correct
34 Correct 4 ms 3068 KB Output is correct
35 Correct 8 ms 3068 KB Output is correct
36 Correct 5 ms 3068 KB Output is correct
37 Correct 5 ms 3068 KB Output is correct
38 Correct 5 ms 3068 KB Output is correct
39 Correct 5 ms 3068 KB Output is correct
40 Correct 6 ms 3068 KB Output is correct
41 Correct 4 ms 3068 KB Output is correct
42 Correct 5 ms 3068 KB Output is correct
43 Correct 5 ms 3068 KB Output is correct
44 Correct 5 ms 3068 KB Output is correct
45 Correct 5 ms 3068 KB Output is correct
46 Correct 10 ms 3452 KB Output is correct
47 Correct 11 ms 3488 KB Output is correct
48 Correct 9 ms 3488 KB Output is correct
49 Correct 10 ms 3612 KB Output is correct
50 Correct 9 ms 3612 KB Output is correct
51 Correct 8 ms 3628 KB Output is correct
52 Correct 8 ms 3628 KB Output is correct
53 Correct 7 ms 3644 KB Output is correct
54 Correct 8 ms 3644 KB Output is correct
55 Correct 8 ms 3644 KB Output is correct
56 Correct 8 ms 3644 KB Output is correct
57 Correct 11 ms 3680 KB Output is correct
58 Correct 14 ms 3680 KB Output is correct
59 Correct 13 ms 3680 KB Output is correct
60 Correct 13 ms 3680 KB Output is correct
61 Correct 8 ms 3680 KB Output is correct
62 Correct 8 ms 3680 KB Output is correct
63 Correct 14 ms 3680 KB Output is correct
64 Correct 11 ms 3680 KB Output is correct
65 Correct 12 ms 3680 KB Output is correct
66 Correct 11 ms 3680 KB Output is correct
67 Correct 13 ms 3680 KB Output is correct
68 Correct 13 ms 3680 KB Output is correct
69 Correct 8 ms 3680 KB Output is correct
70 Correct 8 ms 3680 KB Output is correct
71 Correct 9 ms 3680 KB Output is correct
72 Correct 10 ms 3680 KB Output is correct
73 Correct 14 ms 3680 KB Output is correct
74 Correct 8 ms 3680 KB Output is correct
75 Correct 8 ms 3680 KB Output is correct
76 Correct 7 ms 3680 KB Output is correct
77 Correct 7 ms 3680 KB Output is correct
78 Correct 7 ms 3680 KB Output is correct
79 Correct 7 ms 3680 KB Output is correct
80 Correct 7 ms 3680 KB Output is correct
81 Correct 11 ms 3680 KB Output is correct
82 Correct 12 ms 3680 KB Output is correct
83 Correct 8 ms 3680 KB Output is correct
84 Correct 7 ms 3680 KB Output is correct
85 Correct 7 ms 3680 KB Output is correct
86 Correct 7 ms 3680 KB Output is correct
87 Correct 25 ms 4156 KB Output is correct
88 Correct 81 ms 6232 KB Output is correct
89 Correct 255 ms 13792 KB Output is correct
90 Correct 303 ms 14028 KB Output is correct
91 Correct 401 ms 14028 KB Output is correct
92 Correct 187 ms 18140 KB Output is correct
93 Correct 138 ms 18148 KB Output is correct
94 Correct 137 ms 18172 KB Output is correct
95 Correct 149 ms 18172 KB Output is correct
96 Correct 237 ms 18172 KB Output is correct
97 Correct 227 ms 18172 KB Output is correct
98 Correct 214 ms 18172 KB Output is correct
99 Correct 214 ms 18172 KB Output is correct
100 Correct 582 ms 18172 KB Output is correct
101 Correct 594 ms 18172 KB Output is correct
102 Correct 471 ms 18172 KB Output is correct
103 Correct 591 ms 18172 KB Output is correct
104 Correct 232 ms 18172 KB Output is correct
105 Correct 224 ms 18172 KB Output is correct
106 Correct 221 ms 18172 KB Output is correct
107 Correct 298 ms 18172 KB Output is correct
108 Correct 298 ms 18172 KB Output is correct
109 Correct 323 ms 18172 KB Output is correct
110 Correct 168 ms 18172 KB Output is correct
111 Correct 221 ms 18172 KB Output is correct
112 Correct 157 ms 18172 KB Output is correct
113 Correct 130 ms 18172 KB Output is correct
114 Correct 571 ms 18172 KB Output is correct
115 Correct 590 ms 18172 KB Output is correct
116 Correct 139 ms 18172 KB Output is correct
117 Correct 147 ms 18172 KB Output is correct
118 Correct 187 ms 18172 KB Output is correct
119 Correct 224 ms 18172 KB Output is correct
120 Correct 183 ms 18172 KB Output is correct
121 Correct 183 ms 18172 KB Output is correct
122 Correct 198 ms 18172 KB Output is correct
123 Correct 212 ms 18172 KB Output is correct
124 Correct 223 ms 18172 KB Output is correct
125 Correct 237 ms 18172 KB Output is correct
126 Correct 213 ms 18172 KB Output is correct
127 Correct 151 ms 18172 KB Output is correct
128 Correct 146 ms 18172 KB Output is correct