제출 #859931

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
859931		vjudge1	Job Scheduling (CEOI12_jobs)	C++14	35 / 100	322 ms	36524 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,day=n;
	for(int day=1;day<=n;++day)
	{
		for(int i=0;i<machine;++i)
		{
//			printf("ptr=%d\n",ptr);
			if(ptr>=a.size()) return true;
			if(a[ptr]+d<day) return false;
			++ptr;
		}
	}
	return false;
}
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';
	int ptr=0;
	for(int i=0;i<n;++i)
	{
		for(int j=0;j<ans;++j) if(ptr<index_v.size()) cout<<index_v[ptr++]<<' ';
		cout<<0<<'\n';
	}
	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(long long int)':
jobs.cpp:14:10: 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]
   14 |    if(ptr>=a.size()) return true;
      |       ~~~^~~~~~~~~~
jobs.cpp:8:12: warning: unused variable 'day' [-Wunused-variable]
    8 |  int ptr=0,day=n;
      |            ^~~
jobs.cpp: At global scope:
jobs.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   21 | main()
      | ^~~~
jobs.cpp: In function 'int main()':
jobs.cpp:40:32: 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]
   40 |   for(int j=0;j<ans;++j) if(ptr<index_v.size()) cout<<index_v[ptr++]<<' ';
      |                             ~~~^~~~~~~~~~~~~~~

• Subtask 1: 35 / 100