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Submission #802883

# Submission time Handle Problem Language Result Execution time Memory
802883 2023-08-02T15:32:48 Z Ahmed57 Job Scheduling (IOI19_job) C++17
100 / 100
 167 ms 29508 KB 
#include "job.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int mxN=2e5;
int n, nxt[mxN], ta[mxN];
vector<int> o;
ll u2[mxN], d2[mxN];

struct cmp {
	bool operator()(const int &a, const int &b) {
		return d2[a]*u2[b]>d2[b]*u2[a];
	}
};
priority_queue<int, vector<int>, cmp> c[mxN];

void dfs(int u) {
	o.push_back(u);
	for(; c[u].size(); c[u].pop())
		dfs(c[u].top());
}

ll scheduling_cost(vector<int> p, vector<int> u, vector<int> d) {
	n=p.size();
	memset(nxt, -1, 4*n);
	iota(ta, ta+n, 0);
	for(int i=n-1; ~i; --i) {
		u2[i]=u[i];
		d2[i]=d[i];
		while(c[i].size()) {
			int u=c[i].top();
			if(cmp()(u, i))
				break;
			c[i].pop();
			nxt[ta[i]]=u;
			ta[i]=ta[u];
			u2[i]+=u2[u];
			d2[i]+=d2[u];
			if(c[i].size()<c[u].size())
				swap(c[i], c[u]);
			for(; c[u].size(); c[u].pop())
				c[i].push(c[u].top());
		}
		if(i)
			c[p[i]].push(i);
	}
	dfs(0);
	sort(o.begin(), o.end(), cmp());
	ll t=0, ans=0;
	for(int i=o.size()-1; ~i; --i) {
		for(int j=o[i]; ~j; j=nxt[j]) {
			t+=d[j];
			ans+=t*u[j];
		}
	}
	return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 4 ms 6468 KB Output is correct
4 Correct 4 ms 6612 KB Output is correct
5 Correct 18 ms 10452 KB Output is correct
6 Correct 32 ms 14400 KB Output is correct
7 Correct 47 ms 18256 KB Output is correct
8 Correct 61 ms 22220 KB Output is correct
9 Correct 61 ms 22204 KB Output is correct
10 Correct 62 ms 22096 KB Output is correct
11 Correct 3 ms 6484 KB Output is correct
12 Correct 67 ms 22216 KB Output is correct
13 Correct 70 ms 22108 KB Output is correct
14 Correct 61 ms 22176 KB Output is correct
15 Correct 59 ms 22100 KB Output is correct
16 Correct 63 ms 22364 KB Output is correct
17 Correct 66 ms 22220 KB Output is correct
18 Correct 62 ms 22108 KB Output is correct
19 Correct 60 ms 22104 KB Output is correct
20 Correct 80 ms 29508 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 3 ms 6484 KB Output is correct
4 Correct 118 ms 18232 KB Output is correct
5 Correct 122 ms 18256 KB Output is correct
6 Correct 147 ms 18276 KB Output is correct
7 Correct 120 ms 18168 KB Output is correct
8 Correct 116 ms 18240 KB Output is correct
9 Correct 128 ms 18372 KB Output is correct
10 Correct 119 ms 18256 KB Output is correct
11 Correct 124 ms 18292 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 3 ms 6484 KB Output is correct
4 Correct 3 ms 6608 KB Output is correct
5 Correct 6 ms 7124 KB Output is correct
6 Correct 129 ms 18184 KB Output is correct
7 Correct 124 ms 18252 KB Output is correct
8 Correct 120 ms 18244 KB Output is correct
9 Correct 118 ms 18196 KB Output is correct
10 Correct 3 ms 6484 KB Output is correct
11 Correct 3 ms 6612 KB Output is correct
12 Correct 7 ms 7116 KB Output is correct
13 Correct 7 ms 7124 KB Output is correct
14 Correct 123 ms 18248 KB Output is correct
15 Correct 124 ms 18220 KB Output is correct
16 Correct 120 ms 18240 KB Output is correct
17 Correct 122 ms 18364 KB Output is correct
18 Correct 126 ms 18272 KB Output is correct
19 Correct 167 ms 18276 KB Output is correct
20 Correct 134 ms 18240 KB Output is correct
21 Correct 125 ms 18212 KB Output is correct
22 Correct 118 ms 18240 KB Output is correct
23 Correct 120 ms 18212 KB Output is correct
24 Correct 120 ms 18260 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 62 ms 22184 KB Output is correct
3 Correct 62 ms 22212 KB Output is correct
4 Correct 61 ms 22212 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6496 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 3 ms 6484 KB Output is correct
4 Correct 3 ms 6484 KB Output is correct
5 Correct 3 ms 6484 KB Output is correct
6 Correct 3 ms 6484 KB Output is correct
7 Correct 3 ms 6484 KB Output is correct
8 Correct 3 ms 6484 KB Output is correct
9 Correct 3 ms 6484 KB Output is correct
10 Correct 3 ms 6576 KB Output is correct
11 Correct 3 ms 6576 KB Output is correct
12 Correct 3 ms 6484 KB Output is correct
13 Correct 3 ms 6484 KB Output is correct
14 Correct 3 ms 6484 KB Output is correct
15 Correct 4 ms 6612 KB Output is correct
16 Correct 3 ms 6484 KB Output is correct
17 Correct 3 ms 6580 KB Output is correct

Subtask #6
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Correct 3 ms 6484 KB Output is correct
3 Correct 4 ms 6468 KB Output is correct
4 Correct 4 ms 6612 KB Output is correct
5 Correct 18 ms 10452 KB Output is correct
6 Correct 32 ms 14400 KB Output is correct
7 Correct 47 ms 18256 KB Output is correct
8 Correct 61 ms 22220 KB Output is correct
9 Correct 61 ms 22204 KB Output is correct
10 Correct 62 ms 22096 KB Output is correct
11 Correct 3 ms 6484 KB Output is correct
12 Correct 67 ms 22216 KB Output is correct
13 Correct 70 ms 22108 KB Output is correct
14 Correct 61 ms 22176 KB Output is correct
15 Correct 59 ms 22100 KB Output is correct
16 Correct 63 ms 22364 KB Output is correct
17 Correct 66 ms 22220 KB Output is correct
18 Correct 62 ms 22108 KB Output is correct
19 Correct 60 ms 22104 KB Output is correct
20 Correct 80 ms 29508 KB Output is correct
21 Correct 3 ms 6484 KB Output is correct
22 Correct 3 ms 6484 KB Output is correct
23 Correct 3 ms 6484 KB Output is correct
24 Correct 118 ms 18232 KB Output is correct
25 Correct 122 ms 18256 KB Output is correct
26 Correct 147 ms 18276 KB Output is correct
27 Correct 120 ms 18168 KB Output is correct
28 Correct 116 ms 18240 KB Output is correct
29 Correct 128 ms 18372 KB Output is correct
30 Correct 119 ms 18256 KB Output is correct
31 Correct 124 ms 18292 KB Output is correct
32 Correct 3 ms 6484 KB Output is correct
33 Correct 3 ms 6484 KB Output is correct
34 Correct 3 ms 6484 KB Output is correct
35 Correct 3 ms 6608 KB Output is correct
36 Correct 6 ms 7124 KB Output is correct
37 Correct 129 ms 18184 KB Output is correct
38 Correct 124 ms 18252 KB Output is correct
39 Correct 120 ms 18244 KB Output is correct
40 Correct 118 ms 18196 KB Output is correct
41 Correct 3 ms 6484 KB Output is correct
42 Correct 3 ms 6612 KB Output is correct
43 Correct 7 ms 7116 KB Output is correct
44 Correct 7 ms 7124 KB Output is correct
45 Correct 123 ms 18248 KB Output is correct
46 Correct 124 ms 18220 KB Output is correct
47 Correct 120 ms 18240 KB Output is correct
48 Correct 122 ms 18364 KB Output is correct
49 Correct 126 ms 18272 KB Output is correct
50 Correct 167 ms 18276 KB Output is correct
51 Correct 134 ms 18240 KB Output is correct
52 Correct 125 ms 18212 KB Output is correct
53 Correct 118 ms 18240 KB Output is correct
54 Correct 120 ms 18212 KB Output is correct
55 Correct 120 ms 18260 KB Output is correct
56 Correct 3 ms 6484 KB Output is correct
57 Correct 62 ms 22184 KB Output is correct
58 Correct 62 ms 22212 KB Output is correct
59 Correct 61 ms 22212 KB Output is correct
60 Correct 3 ms 6496 KB Output is correct
61 Correct 3 ms 6484 KB Output is correct
62 Correct 3 ms 6484 KB Output is correct
63 Correct 3 ms 6484 KB Output is correct
64 Correct 3 ms 6484 KB Output is correct
65 Correct 3 ms 6484 KB Output is correct
66 Correct 3 ms 6484 KB Output is correct
67 Correct 3 ms 6484 KB Output is correct
68 Correct 3 ms 6484 KB Output is correct
69 Correct 3 ms 6576 KB Output is correct
70 Correct 3 ms 6576 KB Output is correct
71 Correct 3 ms 6484 KB Output is correct
72 Correct 3 ms 6484 KB Output is correct
73 Correct 3 ms 6484 KB Output is correct
74 Correct 4 ms 6612 KB Output is correct
75 Correct 3 ms 6484 KB Output is correct
76 Correct 3 ms 6580 KB Output is correct
77 Correct 4 ms 6484 KB Output is correct
78 Correct 4 ms 6580 KB Output is correct
79 Correct 3 ms 6484 KB Output is correct
80 Correct 3 ms 6580 KB Output is correct
81 Correct 3 ms 6580 KB Output is correct
82 Correct 3 ms 6484 KB Output is correct
83 Correct 3 ms 6580 KB Output is correct
84 Correct 3 ms 6484 KB Output is correct
85 Correct 3 ms 6484 KB Output is correct
86 Correct 3 ms 6484 KB Output is correct
87 Correct 3 ms 6484 KB Output is correct
88 Correct 5 ms 6980 KB Output is correct
89 Correct 6 ms 7152 KB Output is correct
90 Correct 7 ms 7312 KB Output is correct
91 Correct 24 ms 10812 KB Output is correct
92 Correct 44 ms 14900 KB Output is correct
93 Correct 125 ms 23240 KB Output is correct
94 Correct 104 ms 23232 KB Output is correct
95 Correct 100 ms 23228 KB Output is correct
96 Correct 100 ms 23300 KB Output is correct
97 Correct 101 ms 22628 KB Output is correct
98 Correct 99 ms 23676 KB Output is correct
99 Correct 105 ms 22600 KB Output is correct
100 Correct 111 ms 23304 KB Output is correct
101 Correct 122 ms 23992 KB Output is correct
102 Correct 117 ms 23476 KB Output is correct
103 Correct 92 ms 22972 KB Output is correct
104 Correct 89 ms 23500 KB Output is correct
105 Correct 109 ms 23612 KB Output is correct
106 Correct 104 ms 20956 KB Output is correct