제출 #862139

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
862139		vjudge1	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	205 ms	21088 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 ptr=0;
	for(int day=1;day<=n;++day)
	{
		for(int i=0;i<machine;++i)
		{
			if(ptr>=a.size()) return true;
			if(a[ptr]>day) break;
			if(a[ptr]+d<day) return false;
			++ptr;
		}
	}
	return (ptr>=a.size());
}
void yes(int machine)
{
	int ptr=0;
	for(int day=1;day<=n;++day)
	{
		for(int i=0;i<machine;++i)
		{
			if(ptr>=index_v.size()||a[ptr]>day) break;
			cout<<index_v[ptr++]<<' ';
		}
		cout<<0<<'\n';
	}
}
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';
	yes(ans);
	return 0;
}
/*
8 2 12
1 2 4 2 1 3 5 6 2 3 6 4
*/

컴파일 시 표준 에러 (stderr) 메시지

jobs.cpp: In function 'bool is_ok(int)':
jobs.cpp:13:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |    if(ptr>=a.size()) return true;
      |       ~~~^~~~~~~~~~
jobs.cpp:19:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  return (ptr>=a.size());
      |          ~~~^~~~~~~~~~
jobs.cpp: In function 'void yes(int)':
jobs.cpp:28:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |    if(ptr>=index_v.size()||a[ptr]>day) break;
      |       ~~~^~~~~~~~~~~~~~~~
jobs.cpp: At global scope:
jobs.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main()
      | ^~~~

• Subtask 1: 100 / 100