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답안 #559407

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
559407 2022-05-09T17:46:19 Z keta_tsimakuridze 별자리 3 (JOI20_constellation3) C++14
35 / 100
 808 ms 524288 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define endl "\n"
const int N = 2e5 + 5, mod = 1e9 + 7; //!
int t, le_[400 * N], a[N], ri_[400 * N], cur, root[N], f[N], p[N], n;
vector<pii> comp[N];
ll tree[400 * N], lazy[400 * N];
void push(int u,int l,int r) {
	if(!lazy[u]) return;
	tree[u] += lazy[u];
	if(l != r) {
		lazy[le_[u]] += lazy[u];
		lazy[ri_[u]] += lazy[u];
	}
	lazy[u] = 0;
}
void UPD(int u) {
	if(!le_[u]) le_[u] = ++cur;
	if(!ri_[u]) ri_[u] = ++cur;
	assert(cur <= 300 * N);
}
void upd(int u, int st, int en, int l, int r, ll v) {
	if(!le_[u]) return;
	UPD(u);
	push(u, l, r);
	if(l > en || r < st) return;
	
	if(st <= l && r <= en) {
		lazy[u] = v;
		push(u, l, r);
		return;
	}
	int mid = (l + r) / 2;
	upd(le_[u], st, en, l, mid, v); upd(ri_[u], st, en, mid + 1, r, v);
	tree[u] = max(tree[le_[u]], tree[ri_[u]]);
}
void upd(int u,int id, int l,int r,ll v) {
	UPD(u);
	push(u, l, r);
	if(l > id || r < id) return;
	
	if(l == r) {
		tree[u] = max(tree[u], v);
		return;
	}
	int mid = (l + r) / 2;	
	upd(le_[u], id, l, mid, v); upd(ri_[u], id, mid + 1, r, v);
	tree[u] = max(tree[le_[u]], tree[ri_[u]]);
}
 
ll get(int u, int st, int en, int l,int r) {
	if(!u) return 0;
	UPD(u);
	push(u, l, r);
	if(l > en || r < st) return 0;
	if(st <= l && r <= en) return tree[u];
	int mid = (l + r) / 2;
	return max(get(le_[u], st, en, l, mid), get(ri_[u], st, en ,mid + 1, r));
}
 
int find(int u) {
	return (p[u] == u ? p[u] : p[u] = find(p[u]));
}
void merge(int u, int v, int H) {
	u = find(u); v = find(v);
	assert(u != v); 
	if(comp[v].size() > comp[u].size()) swap(u, v);
	p[v] = u; 
	
	ll ul = get(root[u], 1, H, 1, n), vl = get(root[v], 1, H, 1, n);
	upd(root[u], 1, n, 1, n, vl); 
	
	for(int i = 0; i < comp[v].size(); i++) {
		if(comp[v][i].f <= H) continue;
		upd(root[u], comp[v][i].f, 1, n, get(root[v], 1, comp[v][i].f, 1, n) + ul);
		
		comp[u].push_back(comp[v][i]);
	}
//	cout << tree[root[u]] << "  ? " << endl;
}
main() {
//	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	int m;
	cin >> n;
	vector<pii> h;
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
		h.push_back({a[i], i});
	}
	cin >> m;
	ll call = 0;
	while(m--) {
		int x, y, w;
		cin >> x >> y >> w;
		comp[x].push_back({y, w});
		call += w;
	}
	for(int i = 1; i <= n; i++) {
		p[i] = i;
		root[i] = ++cur;
		for(int j = 0; j < comp[i].size(); j++)
		upd(root[i], comp[i][j].f, 1, n, comp[i][j].s);
	}
	sort(h.begin(), h.end());
	
	for(int i = 0; i < h.size(); i++) {
		
		int id = h[i].s, H = h[i].f;
		if(f[id - 1]) merge(id - 1, id, H); 
		if(f[id + 1]) merge(id + 1, id, H);
		f[id] = 1;
	}
	
	cout << call - tree[root[find(1)]];
}

Compilation message

constellation3.cpp: In function 'void merge(int, int, int)':
constellation3.cpp:77:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |  for(int i = 0; i < comp[v].size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~
constellation3.cpp: At global scope:
constellation3.cpp:85:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   85 | main() {
      | ^~~~
constellation3.cpp: In function 'int main()':
constellation3.cpp:105:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |   for(int j = 0; j < comp[i].size(); j++)
      |                  ~~^~~~~~~~~~~~~~~~
constellation3.cpp:110:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |  for(int i = 0; i < h.size(); i++) {
      |                 ~~^~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5460 KB Output is correct
2 Correct 4 ms 5460 KB Output is correct
3 Correct 4 ms 5460 KB Output is correct
4 Correct 4 ms 5460 KB Output is correct
5 Correct 4 ms 5400 KB Output is correct
6 Correct 4 ms 5460 KB Output is correct
7 Correct 3 ms 5460 KB Output is correct
8 Correct 4 ms 5460 KB Output is correct
9 Correct 4 ms 5400 KB Output is correct
10 Correct 4 ms 5296 KB Output is correct
11 Correct 3 ms 5460 KB Output is correct
12 Correct 4 ms 5460 KB Output is correct
13 Correct 4 ms 5460 KB Output is correct
14 Correct 4 ms 5460 KB Output is correct
15 Correct 4 ms 5460 KB Output is correct
16 Correct 3 ms 5204 KB Output is correct
17 Correct 3 ms 5204 KB Output is correct
18 Correct 4 ms 5332 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct
20 Correct 4 ms 5276 KB Output is correct
21 Correct 4 ms 5272 KB Output is correct
22 Correct 4 ms 5204 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5460 KB Output is correct
2 Correct 4 ms 5460 KB Output is correct
3 Correct 4 ms 5460 KB Output is correct
4 Correct 4 ms 5460 KB Output is correct
5 Correct 4 ms 5400 KB Output is correct
6 Correct 4 ms 5460 KB Output is correct
7 Correct 3 ms 5460 KB Output is correct
8 Correct 4 ms 5460 KB Output is correct
9 Correct 4 ms 5400 KB Output is correct
10 Correct 4 ms 5296 KB Output is correct
11 Correct 3 ms 5460 KB Output is correct
12 Correct 4 ms 5460 KB Output is correct
13 Correct 4 ms 5460 KB Output is correct
14 Correct 4 ms 5460 KB Output is correct
15 Correct 4 ms 5460 KB Output is correct
16 Correct 3 ms 5204 KB Output is correct
17 Correct 3 ms 5204 KB Output is correct
18 Correct 4 ms 5332 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct
20 Correct 4 ms 5276 KB Output is correct
21 Correct 4 ms 5272 KB Output is correct
22 Correct 4 ms 5204 KB Output is correct
23 Correct 10 ms 9684 KB Output is correct
24 Correct 11 ms 9812 KB Output is correct
25 Correct 9 ms 9764 KB Output is correct
26 Correct 10 ms 10016 KB Output is correct
27 Correct 10 ms 9812 KB Output is correct
28 Correct 12 ms 9788 KB Output is correct
29 Correct 10 ms 9812 KB Output is correct
30 Correct 11 ms 10020 KB Output is correct
31 Correct 10 ms 9820 KB Output is correct
32 Correct 9 ms 8240 KB Output is correct
33 Correct 10 ms 8800 KB Output is correct
34 Correct 10 ms 8804 KB Output is correct
35 Correct 10 ms 9032 KB Output is correct
36 Correct 9 ms 8148 KB Output is correct
37 Correct 10 ms 8332 KB Output is correct
38 Correct 10 ms 6372 KB Output is correct
39 Correct 9 ms 7508 KB Output is correct
40 Correct 8 ms 7840 KB Output is correct
41 Correct 8 ms 7380 KB Output is correct
42 Correct 9 ms 7636 KB Output is correct
43 Correct 10 ms 8020 KB Output is correct
44 Correct 8 ms 7252 KB Output is correct

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5460 KB Output is correct
2 Correct 4 ms 5460 KB Output is correct
3 Correct 4 ms 5460 KB Output is correct
4 Correct 4 ms 5460 KB Output is correct
5 Correct 4 ms 5400 KB Output is correct
6 Correct 4 ms 5460 KB Output is correct
7 Correct 3 ms 5460 KB Output is correct
8 Correct 4 ms 5460 KB Output is correct
9 Correct 4 ms 5400 KB Output is correct
10 Correct 4 ms 5296 KB Output is correct
11 Correct 3 ms 5460 KB Output is correct
12 Correct 4 ms 5460 KB Output is correct
13 Correct 4 ms 5460 KB Output is correct
14 Correct 4 ms 5460 KB Output is correct
15 Correct 4 ms 5460 KB Output is correct
16 Correct 3 ms 5204 KB Output is correct
17 Correct 3 ms 5204 KB Output is correct
18 Correct 4 ms 5332 KB Output is correct
19 Correct 4 ms 5204 KB Output is correct
20 Correct 4 ms 5276 KB Output is correct
21 Correct 4 ms 5272 KB Output is correct
22 Correct 4 ms 5204 KB Output is correct
23 Correct 10 ms 9684 KB Output is correct
24 Correct 11 ms 9812 KB Output is correct
25 Correct 9 ms 9764 KB Output is correct
26 Correct 10 ms 10016 KB Output is correct
27 Correct 10 ms 9812 KB Output is correct
28 Correct 12 ms 9788 KB Output is correct
29 Correct 10 ms 9812 KB Output is correct
30 Correct 11 ms 10020 KB Output is correct
31 Correct 10 ms 9820 KB Output is correct
32 Correct 9 ms 8240 KB Output is correct
33 Correct 10 ms 8800 KB Output is correct
34 Correct 10 ms 8804 KB Output is correct
35 Correct 10 ms 9032 KB Output is correct
36 Correct 9 ms 8148 KB Output is correct
37 Correct 10 ms 8332 KB Output is correct
38 Correct 10 ms 6372 KB Output is correct
39 Correct 9 ms 7508 KB Output is correct
40 Correct 8 ms 7840 KB Output is correct
41 Correct 8 ms 7380 KB Output is correct
42 Correct 9 ms 7636 KB Output is correct
43 Correct 10 ms 8020 KB Output is correct
44 Correct 8 ms 7252 KB Output is correct
45 Runtime error 808 ms 524288 KB Execution killed with signal 9
46 Halted 0 ms 0 KB -