oj.uz

답안 #132161

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
132161 2019-07-18T11:15:00 Z onjo0127 Construction of Highway (JOI18_construction) C++11
100 / 100
 1018 ms 18332 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;

struct maxseg {
	vector<int> T;
	void upd(int idx, int s, int e, int p, int v) {
		if(p < s || e < p) return;
		if(s == e) {
			T[idx] = v;
			return;
		}
		int m = s+e >> 1;
		upd(idx*2, s, m, p, v);
		upd(idx*2+1, m+1, e, p, v);
		T[idx] = max(T[idx*2], T[idx*2+1]);
	}
	int get(int idx, int s, int e, int l, int r) {
		if(r < s || e < l) return 0;
		if(l <= s && e <= r) return T[idx];
		int m = s+e >> 1;
		return max(get(idx*2, s, m, l, r), get(idx*2+1, m+1, e, l, r));
	}
	maxseg(int N) {
		T.resize(4*N);
	}
};

const int _N = 100009;
int A[_N], B[_N], C[_N], in[_N], ou[_N], t, d[_N], r[_N];
vector<int> adj[_N], CS;
long long F[_N];

void upd(int x, int y) {
	for(int i=x; i<=(int)CS.size(); i+=(i&-i)) F[i] += y;
}
long long get(int x) {
	long long ret = 0;
	for(int i=x; i>=1; i-=(i&-i)) ret += F[i];
	return ret;
}

void dfs(int x, int p, int d) {
	in[x] = ++t; ::d[x] = d;
	for(auto& it: adj[x]) dfs(it, x, d+1);
	ou[x] = t;
}

int main() {
	int N; scanf("%d",&N);
	for(int i=1; i<=N; i++) {
		scanf("%d",&C[i]);
		CS.push_back(C[i]);
	}
	sort(CS.begin(), CS.end());
	CS.resize(unique(CS.begin(), CS.end()) - CS.begin());
	for(int i=1; i<=N; i++) C[i] = lower_bound(CS.begin(), CS.end(), C[i]) - CS.begin() + 1;

	for(int i=1; i<N; i++) {
		scanf("%d%d",&A[i],&B[i]);
		adj[A[i]].push_back(B[i]);
	}
	dfs(1, 1, 1);
	maxseg seg(N);
	B[0] = 1; r[0] = 0;
	for(int i=1; i<N; i++) {
		int now = A[i], ni = seg.get(1, 1, N, in[now], ou[now]);
		vector<pii> S = {{ni, now}};
		while(1) {
			now = r[seg.get(1, 1, N, in[now], ou[now])];
			if(now == 0) break;
			ni = seg.get(1, 1, N, in[now], ou[now]);
			S.push_back({ni, now});
		}
		long long ans = 0;
		for(auto& it: S) {
			ans += 1LL * (d[it.second] - d[r[it.first]]) * get(C[B[it.first]] - 1);
			upd(C[B[it.first]], d[it.second] - d[r[it.first]]);
		}
		for(auto& it: S) {
			upd(C[B[it.first]], d[r[it.first]] - d[it.second]);
			r[it.first] = it.second;
		}
		r[i] = 0;
		seg.upd(1, 1, N, in[B[i]], i);
		printf("%lld\n", ans);
	}
	return 0;
}

Compilation message

construction.cpp: In member function 'void maxseg::upd(int, int, int, int, int)':
construction.cpp:13:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
construction.cpp: In member function 'int maxseg::get(int, int, int, int, int)':
construction.cpp:21:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
construction.cpp: In function 'int main()':
construction.cpp:50:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int N; scanf("%d",&N);
         ~~~~~^~~~~~~~~
construction.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&C[i]);
   ~~~~~^~~~~~~~~~~~
construction.cpp:60:8: 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 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2812 KB Output is correct
7 Correct 5 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 5 ms 2680 KB Output is correct
13 Correct 5 ms 2680 KB Output is correct
14 Correct 4 ms 2684 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2680 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2680 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2680 KB Output is correct
25 Correct 6 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2680 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 6 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2676 KB Output is correct
33 Correct 5 ms 2680 KB Output is correct
34 Correct 6 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 6 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 6 ms 2828 KB Output is correct
41 Correct 6 ms 2808 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 6 ms 2680 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2812 KB Output is correct
7 Correct 5 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 5 ms 2680 KB Output is correct
13 Correct 5 ms 2680 KB Output is correct
14 Correct 4 ms 2684 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2680 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2680 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2680 KB Output is correct
25 Correct 6 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2680 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 6 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2676 KB Output is correct
33 Correct 5 ms 2680 KB Output is correct
34 Correct 6 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 6 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 6 ms 2828 KB Output is correct
41 Correct 6 ms 2808 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 6 ms 2680 KB Output is correct
45 Correct 6 ms 2808 KB Output is correct
46 Correct 15 ms 3196 KB Output is correct
47 Correct 16 ms 3064 KB Output is correct
48 Correct 15 ms 3064 KB Output is correct
49 Correct 9 ms 3340 KB Output is correct
50 Correct 9 ms 3320 KB Output is correct
51 Correct 9 ms 3320 KB Output is correct
52 Correct 10 ms 3192 KB Output is correct
53 Correct 11 ms 3240 KB Output is correct
54 Correct 10 ms 3192 KB Output is correct
55 Correct 10 ms 3192 KB Output is correct
56 Correct 11 ms 3192 KB Output is correct
57 Correct 21 ms 3064 KB Output is correct
58 Correct 22 ms 3064 KB Output is correct
59 Correct 23 ms 3212 KB Output is correct
60 Correct 24 ms 3064 KB Output is correct
61 Correct 11 ms 3220 KB Output is correct
62 Correct 11 ms 3192 KB Output is correct
63 Correct 11 ms 3192 KB Output is correct
64 Correct 14 ms 3064 KB Output is correct
65 Correct 14 ms 2936 KB Output is correct
66 Correct 15 ms 3064 KB Output is correct
67 Correct 15 ms 3064 KB Output is correct
68 Correct 9 ms 3320 KB Output is correct
69 Correct 11 ms 3192 KB Output is correct
70 Correct 10 ms 3192 KB Output is correct
71 Correct 10 ms 3192 KB Output is correct
72 Correct 22 ms 3064 KB Output is correct
73 Correct 21 ms 3064 KB Output is correct
74 Correct 11 ms 3064 KB Output is correct
75 Correct 11 ms 3116 KB Output is correct
76 Correct 10 ms 3064 KB Output is correct
77 Correct 10 ms 3064 KB Output is correct
78 Correct 10 ms 3064 KB Output is correct
79 Correct 10 ms 3064 KB Output is correct
80 Correct 10 ms 3192 KB Output is correct
81 Correct 11 ms 3064 KB Output is correct
82 Correct 11 ms 3064 KB Output is correct
83 Correct 11 ms 3068 KB Output is correct
84 Correct 10 ms 3032 KB Output is correct
85 Correct 10 ms 3064 KB Output is correct
86 Correct 10 ms 3064 KB Output is correct

Subtask #3
84.0 / 84.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2812 KB Output is correct
7 Correct 5 ms 2680 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 5 ms 2680 KB Output is correct
13 Correct 5 ms 2680 KB Output is correct
14 Correct 4 ms 2684 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2680 KB Output is correct
17 Correct 5 ms 2680 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2680 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2680 KB Output is correct
25 Correct 6 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2680 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 6 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2676 KB Output is correct
33 Correct 5 ms 2680 KB Output is correct
34 Correct 6 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 6 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 5 ms 2808 KB Output is correct
40 Correct 6 ms 2828 KB Output is correct
41 Correct 6 ms 2808 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 6 ms 2680 KB Output is correct
45 Correct 6 ms 2808 KB Output is correct
46 Correct 15 ms 3196 KB Output is correct
47 Correct 16 ms 3064 KB Output is correct
48 Correct 15 ms 3064 KB Output is correct
49 Correct 9 ms 3340 KB Output is correct
50 Correct 9 ms 3320 KB Output is correct
51 Correct 9 ms 3320 KB Output is correct
52 Correct 10 ms 3192 KB Output is correct
53 Correct 11 ms 3240 KB Output is correct
54 Correct 10 ms 3192 KB Output is correct
55 Correct 10 ms 3192 KB Output is correct
56 Correct 11 ms 3192 KB Output is correct
57 Correct 21 ms 3064 KB Output is correct
58 Correct 22 ms 3064 KB Output is correct
59 Correct 23 ms 3212 KB Output is correct
60 Correct 24 ms 3064 KB Output is correct
61 Correct 11 ms 3220 KB Output is correct
62 Correct 11 ms 3192 KB Output is correct
63 Correct 11 ms 3192 KB Output is correct
64 Correct 14 ms 3064 KB Output is correct
65 Correct 14 ms 2936 KB Output is correct
66 Correct 15 ms 3064 KB Output is correct
67 Correct 15 ms 3064 KB Output is correct
68 Correct 9 ms 3320 KB Output is correct
69 Correct 11 ms 3192 KB Output is correct
70 Correct 10 ms 3192 KB Output is correct
71 Correct 10 ms 3192 KB Output is correct
72 Correct 22 ms 3064 KB Output is correct
73 Correct 21 ms 3064 KB Output is correct
74 Correct 11 ms 3064 KB Output is correct
75 Correct 11 ms 3116 KB Output is correct
76 Correct 10 ms 3064 KB Output is correct
77 Correct 10 ms 3064 KB Output is correct
78 Correct 10 ms 3064 KB Output is correct
79 Correct 10 ms 3064 KB Output is correct
80 Correct 10 ms 3192 KB Output is correct
81 Correct 11 ms 3064 KB Output is correct
82 Correct 11 ms 3064 KB Output is correct
83 Correct 11 ms 3068 KB Output is correct
84 Correct 10 ms 3032 KB Output is correct
85 Correct 10 ms 3064 KB Output is correct
86 Correct 10 ms 3064 KB Output is correct
87 Correct 38 ms 3704 KB Output is correct
88 Correct 124 ms 5628 KB Output is correct
89 Correct 551 ms 12248 KB Output is correct
90 Correct 563 ms 12344 KB Output is correct
91 Correct 567 ms 12268 KB Output is correct
92 Correct 177 ms 18332 KB Output is correct
93 Correct 176 ms 18288 KB Output is correct
94 Correct 180 ms 18288 KB Output is correct
95 Correct 231 ms 14852 KB Output is correct
96 Correct 238 ms 15220 KB Output is correct
97 Correct 248 ms 15224 KB Output is correct
98 Correct 228 ms 15192 KB Output is correct
99 Correct 231 ms 14632 KB Output is correct
100 Correct 965 ms 12656 KB Output is correct
101 Correct 1018 ms 12912 KB Output is correct
102 Correct 1002 ms 12732 KB Output is correct
103 Correct 996 ms 12692 KB Output is correct
104 Correct 261 ms 14588 KB Output is correct
105 Correct 257 ms 14644 KB Output is correct
106 Correct 259 ms 14564 KB Output is correct
107 Correct 474 ms 10680 KB Output is correct
108 Correct 510 ms 10736 KB Output is correct
109 Correct 554 ms 11392 KB Output is correct
110 Correct 157 ms 16880 KB Output is correct
111 Correct 217 ms 14820 KB Output is correct
112 Correct 197 ms 13780 KB Output is correct
113 Correct 212 ms 13152 KB Output is correct
114 Correct 960 ms 12336 KB Output is correct
115 Correct 951 ms 11536 KB Output is correct
116 Correct 231 ms 13040 KB Output is correct
117 Correct 220 ms 13068 KB Output is correct
118 Correct 223 ms 12692 KB Output is correct
119 Correct 214 ms 12492 KB Output is correct
120 Correct 197 ms 11888 KB Output is correct
121 Correct 193 ms 11568 KB Output is correct
122 Correct 205 ms 11456 KB Output is correct
123 Correct 255 ms 13128 KB Output is correct
124 Correct 261 ms 12656 KB Output is correct
125 Correct 260 ms 12524 KB Output is correct
126 Correct 233 ms 12016 KB Output is correct
127 Correct 233 ms 11632 KB Output is correct
128 Correct 225 ms 11580 KB Output is correct