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답안 #131930

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
131930 2019-07-18T04:42:33 Z 이온조(#3189) Construction of Highway (JOI18_construction) C++14
16 / 100
 2000 ms 23476 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, p[22][_N], l, 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) {
	::p[0][x] = p; 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);
	for(int i=1; (1<<i)<=N; i++) {
		for(int j=1; j<=N; j++) p[i][j] = p[i-1][p[i-1][j]];
		l = i;
	}
	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) {
			for(int i=l; i>=0; i--) if(ni == seg.get(1, 1, N, in[p[i][now]], ou[p[i][now]])) now = p[i][now];
			if(now == 1) break;
			now = p[0][now];
			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 2684 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 5 ms 2780 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 7 ms 2808 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 6 ms 2808 KB Output is correct
18 Correct 6 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 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2812 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 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 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 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 5 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 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2808 KB Output is correct
44 Correct 5 ms 2812 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 2684 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 5 ms 2780 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 7 ms 2808 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 6 ms 2808 KB Output is correct
18 Correct 6 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 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2812 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 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 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 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 5 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 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2808 KB Output is correct
44 Correct 5 ms 2812 KB Output is correct
45 Correct 7 ms 2936 KB Output is correct
46 Correct 20 ms 3320 KB Output is correct
47 Correct 21 ms 3320 KB Output is correct
48 Correct 20 ms 3324 KB Output is correct
49 Correct 11 ms 3576 KB Output is correct
50 Correct 10 ms 3576 KB Output is correct
51 Correct 11 ms 3576 KB Output is correct
52 Correct 15 ms 3448 KB Output is correct
53 Correct 14 ms 3412 KB Output is correct
54 Correct 13 ms 3448 KB Output is correct
55 Correct 13 ms 3448 KB Output is correct
56 Correct 15 ms 3448 KB Output is correct
57 Correct 34 ms 3368 KB Output is correct
58 Correct 35 ms 3448 KB Output is correct
59 Correct 34 ms 3320 KB Output is correct
60 Correct 34 ms 3320 KB Output is correct
61 Correct 15 ms 3576 KB Output is correct
62 Correct 15 ms 3448 KB Output is correct
63 Correct 15 ms 3448 KB Output is correct
64 Correct 19 ms 3320 KB Output is correct
65 Correct 19 ms 3192 KB Output is correct
66 Correct 20 ms 3320 KB Output is correct
67 Correct 19 ms 3316 KB Output is correct
68 Correct 9 ms 3544 KB Output is correct
69 Correct 13 ms 3448 KB Output is correct
70 Correct 13 ms 3448 KB Output is correct
71 Correct 14 ms 3384 KB Output is correct
72 Correct 34 ms 3320 KB Output is correct
73 Correct 33 ms 3192 KB Output is correct
74 Correct 14 ms 3320 KB Output is correct
75 Correct 14 ms 3448 KB Output is correct
76 Correct 13 ms 3320 KB Output is correct
77 Correct 13 ms 3384 KB Output is correct
78 Correct 12 ms 3320 KB Output is correct
79 Correct 14 ms 3328 KB Output is correct
80 Correct 13 ms 3312 KB Output is correct
81 Correct 18 ms 3320 KB Output is correct
82 Correct 16 ms 3320 KB Output is correct
83 Correct 15 ms 3320 KB Output is correct
84 Correct 15 ms 3320 KB Output is correct
85 Correct 15 ms 3324 KB Output is correct
86 Correct 15 ms 3312 KB Output is correct

Subtask #3
0 / 84.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2684 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 5 ms 2780 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2808 KB Output is correct
15 Correct 7 ms 2808 KB Output is correct
16 Correct 6 ms 2808 KB Output is correct
17 Correct 6 ms 2808 KB Output is correct
18 Correct 6 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 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2812 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 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 6 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 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 5 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 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2808 KB Output is correct
44 Correct 5 ms 2812 KB Output is correct
45 Correct 7 ms 2936 KB Output is correct
46 Correct 20 ms 3320 KB Output is correct
47 Correct 21 ms 3320 KB Output is correct
48 Correct 20 ms 3324 KB Output is correct
49 Correct 11 ms 3576 KB Output is correct
50 Correct 10 ms 3576 KB Output is correct
51 Correct 11 ms 3576 KB Output is correct
52 Correct 15 ms 3448 KB Output is correct
53 Correct 14 ms 3412 KB Output is correct
54 Correct 13 ms 3448 KB Output is correct
55 Correct 13 ms 3448 KB Output is correct
56 Correct 15 ms 3448 KB Output is correct
57 Correct 34 ms 3368 KB Output is correct
58 Correct 35 ms 3448 KB Output is correct
59 Correct 34 ms 3320 KB Output is correct
60 Correct 34 ms 3320 KB Output is correct
61 Correct 15 ms 3576 KB Output is correct
62 Correct 15 ms 3448 KB Output is correct
63 Correct 15 ms 3448 KB Output is correct
64 Correct 19 ms 3320 KB Output is correct
65 Correct 19 ms 3192 KB Output is correct
66 Correct 20 ms 3320 KB Output is correct
67 Correct 19 ms 3316 KB Output is correct
68 Correct 9 ms 3544 KB Output is correct
69 Correct 13 ms 3448 KB Output is correct
70 Correct 13 ms 3448 KB Output is correct
71 Correct 14 ms 3384 KB Output is correct
72 Correct 34 ms 3320 KB Output is correct
73 Correct 33 ms 3192 KB Output is correct
74 Correct 14 ms 3320 KB Output is correct
75 Correct 14 ms 3448 KB Output is correct
76 Correct 13 ms 3320 KB Output is correct
77 Correct 13 ms 3384 KB Output is correct
78 Correct 12 ms 3320 KB Output is correct
79 Correct 14 ms 3328 KB Output is correct
80 Correct 13 ms 3312 KB Output is correct
81 Correct 18 ms 3320 KB Output is correct
82 Correct 16 ms 3320 KB Output is correct
83 Correct 15 ms 3320 KB Output is correct
84 Correct 15 ms 3320 KB Output is correct
85 Correct 15 ms 3324 KB Output is correct
86 Correct 15 ms 3312 KB Output is correct
87 Correct 57 ms 4216 KB Output is correct
88 Correct 217 ms 7332 KB Output is correct
89 Correct 1336 ms 17380 KB Output is correct
90 Correct 1304 ms 17328 KB Output is correct
91 Correct 1401 ms 17284 KB Output is correct
92 Correct 194 ms 23404 KB Output is correct
93 Correct 201 ms 23476 KB Output is correct
94 Correct 196 ms 23408 KB Output is correct
95 Correct 473 ms 20332 KB Output is correct
96 Correct 481 ms 20288 KB Output is correct
97 Correct 484 ms 20336 KB Output is correct
98 Correct 495 ms 20168 KB Output is correct
99 Correct 507 ms 19680 KB Output is correct
100 Execution timed out 2037 ms 17312 KB Time limit exceeded
101 Halted 0 ms 0 KB -