oj.uz

Submission #211047

# Submission time Handle Problem Language Result Execution time Memory
211047 2020-03-19T06:08:51 Z Kevin_Zhang_TW Job Scheduling (IOI19_job) C++17
100 / 100
 360 ms 36600 KB 
#include "job.h"
#include <bits/extc++.h>
#include <vector>
#define pb emplace_back
const int maxn = 200010;
using ll = long long;
using namespace std;
int deg[maxn], togo[maxn], tl, n;
ll res;
vector<int> edge[maxn];//, sorted[maxn];
ll p[maxn], u[maxn], d[maxn];
struct cmp {
	bool operator()(int a, int b) const {
		return d[a] * u[b] > d[b] * u[a];
	}
};
__gnu_pbds::priority_queue<int, cmp> sorted[maxn];
void sub_merge(int a, int b) {
	res -= (ll)d[b] * u[a];
	d[a] += d[b];
	u[a] += u[b];
}
void get_ans() {
	res = 0;
	for (int i = 0;i < n;++i) {
		int now = togo[i];
		for (int u : edge[now]) {
			sorted[now].join(sorted[u]);
//			if (sorted[u].size() > sorted[now].size()) swap(sorted[u], sorted[now]);
//			int a = sorted[now].size();
//			//for (int s : sorted[u]) sorted[now].pb(s);
//			sorted[now].insert(sorted[now].end(), sorted[u].begin(), sorted[u].end());
//			inplace_merge(sorted[now].begin(), sorted[now].begin()+a, sorted[now].end(), cmp());
		}
		//sort(sorted[now].begin(), sorted[now].end(), cmp());
		while (sorted[now].size() && cmp()(now, sorted[now].top())) {
			sub_merge(now, sorted[now].top());
			sorted[now].pop();
		}
		sorted[now].push(now);
//		if (now)
//			sorted[now].pb(now);
	}
	auto &v = sorted[0];
	//sort(v.begin(), v.end(), cmp());
	ll t = 0;
	auto dojob = [&](int a) {
		//cerr << "dojob " << a << ' ' << "d, u : " << d[a] << ' ' << u[a] << '\n';
		t += d[a];
		res += t * u[a];
	};
	//dojob(0);
	while (v.size()) {
		dojob(v.top());
		v.pop();
		//v.pop_back();
	}
}
//long long bf() {
//	static bool did[maxn];
//	auto &v = edge[0];
//	sort(v.begin(), v.end(), cmp());
//	for (int u : v)assert(u);
//	ll t = 0;
//	ll res = 0;
//	auto dojob = [&](int a) {
//		t += d[a];
//		res += t * u[a];
//	};
//	dojob(0);
//	for (int i = (int)v.size()-1;i >= 0;--i)
//		dojob(v[i]);
//	return res;
//}
long long scheduling_cost(std::vector<int> p, std::vector<int> u, std::vector<int> d) {
	n = p.size();
	for (int i = 1;i < n;++i) edge[p[i]].pb(i);
	for (int i = 1;i < n;++i) ++deg[ p[i] ];
	for (int i = 0;i < n;++i) if (deg[i] == 0)
		togo[tl++] = i;
	for (int i = 0;i < n;++i) {
		int now = togo[i];
		if (now == 0) {
			assert(n-1 == i);
		   	break;
		}
		if ( --deg[ p[now] ] == 0) togo[tl++] = p[now];
	}
	for (int i = 0;i < n;++i) 
		::p[i] = p[i], ::u[i] = u[i], ::d[i] = d[i];
	get_ans();
	return res;
	//cerr << "my ans is : " << res << '\n';
	//res = 0;
	//cerr << "brute force : " << bf() << '\n';
	//return bf();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 12 ms 9728 KB Output is correct
3 Correct 10 ms 9728 KB Output is correct
4 Correct 11 ms 9856 KB Output is correct
5 Correct 40 ms 14840 KB Output is correct
6 Correct 84 ms 19960 KB Output is correct
7 Correct 100 ms 25080 KB Output is correct
8 Correct 124 ms 30072 KB Output is correct
9 Correct 124 ms 30072 KB Output is correct
10 Correct 127 ms 30048 KB Output is correct
11 Correct 12 ms 9728 KB Output is correct
12 Correct 140 ms 30200 KB Output is correct
13 Correct 123 ms 30200 KB Output is correct
14 Correct 126 ms 30072 KB Output is correct
15 Correct 122 ms 30072 KB Output is correct
16 Correct 130 ms 30328 KB Output is correct
17 Correct 124 ms 30048 KB Output is correct
18 Correct 123 ms 30072 KB Output is correct
19 Correct 123 ms 30072 KB Output is correct
20 Correct 134 ms 36600 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 10 ms 9728 KB Output is correct
3 Correct 11 ms 9728 KB Output is correct
4 Correct 323 ms 31980 KB Output is correct
5 Correct 261 ms 31980 KB Output is correct
6 Correct 260 ms 31852 KB Output is correct
7 Correct 263 ms 31852 KB Output is correct
8 Correct 251 ms 31852 KB Output is correct
9 Correct 267 ms 31980 KB Output is correct
10 Correct 283 ms 31912 KB Output is correct
11 Correct 302 ms 31876 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 10 ms 9728 KB Output is correct
3 Correct 10 ms 9728 KB Output is correct
4 Correct 12 ms 9856 KB Output is correct
5 Correct 18 ms 10880 KB Output is correct
6 Correct 267 ms 32368 KB Output is correct
7 Correct 274 ms 32408 KB Output is correct
8 Correct 322 ms 32492 KB Output is correct
9 Correct 304 ms 32492 KB Output is correct
10 Correct 10 ms 9728 KB Output is correct
11 Correct 11 ms 9856 KB Output is correct
12 Correct 20 ms 10752 KB Output is correct
13 Correct 19 ms 10880 KB Output is correct
14 Correct 270 ms 32364 KB Output is correct
15 Correct 281 ms 32492 KB Output is correct
16 Correct 283 ms 32620 KB Output is correct
17 Correct 331 ms 32492 KB Output is correct
18 Correct 285 ms 32620 KB Output is correct
19 Correct 265 ms 32364 KB Output is correct
20 Correct 262 ms 32364 KB Output is correct
21 Correct 303 ms 32620 KB Output is correct
22 Correct 329 ms 32364 KB Output is correct
23 Correct 284 ms 32492 KB Output is correct
24 Correct 338 ms 32364 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 9728 KB Output is correct
2 Correct 127 ms 30200 KB Output is correct
3 Correct 122 ms 30072 KB Output is correct
4 Correct 125 ms 30072 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9728 KB Output is correct
2 Correct 10 ms 9728 KB Output is correct
3 Correct 11 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 10 ms 9728 KB Output is correct
6 Correct 10 ms 9728 KB Output is correct
7 Correct 11 ms 9728 KB Output is correct
8 Correct 10 ms 9704 KB Output is correct
9 Correct 10 ms 9728 KB Output is correct
10 Correct 10 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 11 ms 9728 KB Output is correct
13 Correct 11 ms 9728 KB Output is correct
14 Correct 11 ms 9728 KB Output is correct
15 Correct 10 ms 9728 KB Output is correct
16 Correct 11 ms 9728 KB Output is correct
17 Correct 10 ms 9728 KB Output is correct

Subtask #6
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 12 ms 9728 KB Output is correct
3 Correct 10 ms 9728 KB Output is correct
4 Correct 11 ms 9856 KB Output is correct
5 Correct 40 ms 14840 KB Output is correct
6 Correct 84 ms 19960 KB Output is correct
7 Correct 100 ms 25080 KB Output is correct
8 Correct 124 ms 30072 KB Output is correct
9 Correct 124 ms 30072 KB Output is correct
10 Correct 127 ms 30048 KB Output is correct
11 Correct 12 ms 9728 KB Output is correct
12 Correct 140 ms 30200 KB Output is correct
13 Correct 123 ms 30200 KB Output is correct
14 Correct 126 ms 30072 KB Output is correct
15 Correct 122 ms 30072 KB Output is correct
16 Correct 130 ms 30328 KB Output is correct
17 Correct 124 ms 30048 KB Output is correct
18 Correct 123 ms 30072 KB Output is correct
19 Correct 123 ms 30072 KB Output is correct
20 Correct 134 ms 36600 KB Output is correct
21 Correct 10 ms 9728 KB Output is correct
22 Correct 10 ms 9728 KB Output is correct
23 Correct 11 ms 9728 KB Output is correct
24 Correct 323 ms 31980 KB Output is correct
25 Correct 261 ms 31980 KB Output is correct
26 Correct 260 ms 31852 KB Output is correct
27 Correct 263 ms 31852 KB Output is correct
28 Correct 251 ms 31852 KB Output is correct
29 Correct 267 ms 31980 KB Output is correct
30 Correct 283 ms 31912 KB Output is correct
31 Correct 302 ms 31876 KB Output is correct
32 Correct 10 ms 9728 KB Output is correct
33 Correct 10 ms 9728 KB Output is correct
34 Correct 10 ms 9728 KB Output is correct
35 Correct 12 ms 9856 KB Output is correct
36 Correct 18 ms 10880 KB Output is correct
37 Correct 267 ms 32368 KB Output is correct
38 Correct 274 ms 32408 KB Output is correct
39 Correct 322 ms 32492 KB Output is correct
40 Correct 304 ms 32492 KB Output is correct
41 Correct 10 ms 9728 KB Output is correct
42 Correct 11 ms 9856 KB Output is correct
43 Correct 20 ms 10752 KB Output is correct
44 Correct 19 ms 10880 KB Output is correct
45 Correct 270 ms 32364 KB Output is correct
46 Correct 281 ms 32492 KB Output is correct
47 Correct 283 ms 32620 KB Output is correct
48 Correct 331 ms 32492 KB Output is correct
49 Correct 285 ms 32620 KB Output is correct
50 Correct 265 ms 32364 KB Output is correct
51 Correct 262 ms 32364 KB Output is correct
52 Correct 303 ms 32620 KB Output is correct
53 Correct 329 ms 32364 KB Output is correct
54 Correct 284 ms 32492 KB Output is correct
55 Correct 338 ms 32364 KB Output is correct
56 Correct 11 ms 9728 KB Output is correct
57 Correct 127 ms 30200 KB Output is correct
58 Correct 122 ms 30072 KB Output is correct
59 Correct 125 ms 30072 KB Output is correct
60 Correct 9 ms 9728 KB Output is correct
61 Correct 10 ms 9728 KB Output is correct
62 Correct 11 ms 9728 KB Output is correct
63 Correct 10 ms 9728 KB Output is correct
64 Correct 10 ms 9728 KB Output is correct
65 Correct 10 ms 9728 KB Output is correct
66 Correct 11 ms 9728 KB Output is correct
67 Correct 10 ms 9704 KB Output is correct
68 Correct 10 ms 9728 KB Output is correct
69 Correct 10 ms 9728 KB Output is correct
70 Correct 10 ms 9728 KB Output is correct
71 Correct 11 ms 9728 KB Output is correct
72 Correct 11 ms 9728 KB Output is correct
73 Correct 11 ms 9728 KB Output is correct
74 Correct 10 ms 9728 KB Output is correct
75 Correct 11 ms 9728 KB Output is correct
76 Correct 10 ms 9728 KB Output is correct
77 Correct 11 ms 9728 KB Output is correct
78 Correct 10 ms 9728 KB Output is correct
79 Correct 10 ms 9728 KB Output is correct
80 Correct 10 ms 9728 KB Output is correct
81 Correct 10 ms 9728 KB Output is correct
82 Correct 11 ms 9728 KB Output is correct
83 Correct 11 ms 9728 KB Output is correct
84 Correct 11 ms 9728 KB Output is correct
85 Correct 10 ms 9728 KB Output is correct
86 Correct 12 ms 9728 KB Output is correct
87 Correct 11 ms 9728 KB Output is correct
88 Correct 15 ms 10240 KB Output is correct
89 Correct 17 ms 10624 KB Output is correct
90 Correct 18 ms 10880 KB Output is correct
91 Correct 56 ms 15608 KB Output is correct
92 Correct 112 ms 21112 KB Output is correct
93 Correct 256 ms 32568 KB Output is correct
94 Correct 278 ms 32760 KB Output is correct
95 Correct 315 ms 32760 KB Output is correct
96 Correct 324 ms 32632 KB Output is correct
97 Correct 259 ms 32668 KB Output is correct
98 Correct 225 ms 33040 KB Output is correct
99 Correct 355 ms 33456 KB Output is correct
100 Correct 289 ms 32864 KB Output is correct
101 Correct 261 ms 32224 KB Output is correct
102 Correct 360 ms 36472 KB Output is correct
103 Correct 217 ms 31768 KB Output is correct
104 Correct 197 ms 31428 KB Output is correct
105 Correct 224 ms 31484 KB Output is correct
106 Correct 320 ms 32884 KB Output is correct