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Submission #373249

# Submission time Handle Problem Language Result Execution time Memory
373249 2021-03-03T23:33:51 Z MilosMilutinovic Job Scheduling (IOI19_job) C++14
0 / 100
 274 ms 262144 KB 
#include "job.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pb push_back

const int mxN=2e5;
int n, dist[mxN];
vector<int> adj[mxN], p, u, d;
deque<int> q[mxN];
bool was[mxN];
ll ans=0;

void merge(int x, int y) {
	d[x]+=d[y];
	u[x]+=u[y];	
}

void dfs(int x) {
	for(int v:adj[x])
		dfs(v), q[x].pb(v);
	while(!q[x].empty()) {
		int y=q[x].back();
		if(d[y]*u[x]>d[x]*u[y])
			break;
		was[y]=true;
		q[x].pop_front();
		ans-=d[y]*u[x];
		merge(x, y);
		if((int)q[x].size()<(int)q[y].size())
			swap(q[x], q[y]);
		while(!q[y].size())
			q[x].pb(q[y].back()), q[y].pop_back();
	}	
}

ll scheduling_cost(vector<int> p1, vector<int> u1, vector<int> d1) {
	p=p1, u=u1, d=d1;
	n = (int) p.size();
	for(int i=1; i<n; ++i) 
		adj[p1[i]].pb(i);
	dfs(0);
	vector<int> j;
	for(int i=0; i<n; ++i)
		if(!was[i])
			j.pb(i);
	sort(j.rbegin(), j.rend(), [&](int x, int y) {
		return d[x]*u[y]>d[y]*u[x];
	});
	ll t=0;
	for(int i:j)
		t+=d[i], ans+=u[i]*t;
	return ans;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 271 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 274 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 267 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Runtime error 274 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Runtime error 265 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 37.0

# Verdict Execution time Memory Grader output
1 Runtime error 271 ms 262144 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -