Submission #859924

#	Time	Username	Problem	Language	Result	Execution time	Memory
859924		vjudge1	Job Scheduling (CEOI12_jobs)	C++14	10 / 100	191 ms	36452 KiB

jobs

#include <bits/stdc++.h>
using namespace std;
#define int long long
int n,d,m;
vector<int> a,index_v;
bool is_ok(int machine)
{
	int day=1;
	for(int i=0;i<a.size();i+=machine)
	{
		if(day>a[i]+d||day>n) return false;
		++day;
	}
	return true;
}
main()
{
	ios::sync_with_stdio(0),cin.tie(0);
	cin>>n>>d>>m;
	vector<pair<int,int>> tmp(m);
	for(int i=0;i<m;++i) cin>>tmp[i].first,tmp[i].second=i+1;
	sort(tmp.begin(),tmp.end());
	for(auto it:tmp) a.push_back(it.first),index_v.push_back(it.second);
	int l=0,r=1e9,ans=1e9;
	while(l<=r)
	{
		int mid=(r-l)/2+l;
		if(is_ok(mid)) ans=mid,r=mid-1;
		else l=mid+1;
	}
	cout<<ans<<'\n';
	for(int i=0;i<index_v.size();)
	{
		for(int j=0;j<ans;++j) cout<<index_v[i++]<<' ';
		cout<<0<<'\n';
	}
	return 0;
}
/*
8 2 12
1 1 2 2 2 3 3 4 4 5 6 6

8 2 12
1 2 4 2 1 3 5 6 2 3 6 4

2
5 1 0
9 4 0
2 10 0
6 12 0
3 7 0
11 8 0
0
0
*/

Compilation message (stderr)

jobs.cpp: In function 'bool is_ok(long long int)':
jobs.cpp:9:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i=0;i<a.size();i+=machine)
      |              ~^~~~~~~~~
jobs.cpp: At global scope:
jobs.cpp:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   16 | main()
      | ^~~~
jobs.cpp: In function 'int main()':
jobs.cpp:32:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |  for(int i=0;i<index_v.size();)
      |              ~^~~~~~~~~~~~~~~

• Subtask 1: 10 / 100