Submission #50663

#	Time	Username	Problem	Language	Result	Execution time	Memory
50663		AryanSM	Job Scheduling (CEOI12_jobs)	C++17	100 / 100	698 ms	59908 KiB

jobs

#include<bits/stdc++.h>
using namespace std; 
#define int long long 
#define mp make_pair
#define pb push_back
#define pii pair<int,int>
#define F first
#define S second
#define ld long double
int const M=1e6+10,M2=1e7+10,mod=1e9+7,inf=1e9+10;
int m,d,a[M],n;
vector<int>hlp[M];
vector<pii>all;
bool check(int x,bool ch)
{
	int day=1,cnt=0;
	for(int i=0;i<m;i++)
	{
		if(cnt==x)day++,cnt=0;
		if(day>n)return 0;
		if(day<all[i].F)day=all[i].F,cnt=0;
		if(day>all[i].F+d)return 0;
		if(ch)hlp[day].pb(all[i].S);
		cnt++;
	}
	return 1;
}
int32_t main()
{
	cin>>n>>d>>m;
	for(int i=1;i<=m;i++)
	{
		cin>>a[i];
		all.pb(mp(a[i],i));
	}
	sort(all.begin(),all.end());
	int lo=1,hi=m;
	while(hi>lo+1)
	{
		int mid=(lo+hi)/2;
		if(check(mid,0))hi=mid;
		else lo=mid+1;
	}
	int ans=hi;
	if(check(lo,0))ans=lo;
	check(ans,1);
	cout<<ans<<endl;
	int cnt=0;
	for(int i=1;i<=n;i++)
	{
		for(int j=0;j<hlp[i].size();j++)cout<<hlp[i][j]<<" ";
		cout<<0<<endl;
	}
}

Compilation message (stderr)

jobs.cpp: In function 'int32_t main()':
jobs.cpp:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<hlp[i].size();j++)cout<<hlp[i][j]<<" ";
               ~^~~~~~~~~~~~~~
jobs.cpp:48:6: warning: unused variable 'cnt' [-Wunused-variable]
  int cnt=0;
      ^~~

• Subtask 1: 100 / 100