제출 #210886

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
210886		daniel920712	Job Scheduling (IOI19_job)	C++14	0 / 100	8 ms	4992 KiB

job

#include "job.h"
#include <vector>
#include <queue>
using namespace std;
vector < int > Next[200005];
struct A
{
    long long u,t,where;
}all[200005];
bool operator > (A a,A b)
{
    return a.u*b.t<b.u*a.t;
}
priority_queue < A , vector < A > , greater < A > > how;
long long scheduling_cost(std::vector<int> p, std::vector<int> u, std::vector<int> d)
{
    long long N=(long long) u.size(),ans=0,t=0,i;
    for(i=0;i<N;i++)
    {
        all[i].u=u[i];
        all[i].t=d[i];
        all[i].where=i;
    }
    for(i=1;i<N;i++) Next[p[i]].push_back(i);
    how.push(all[0]);
    while(!how.empty())
    {
        A a=how.top();
        how.pop();
        t+a.t;
        ans+=t*a.u;
        for(auto i:Next[a.where]) how.push(all[i]);
    }
    return ans;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

job.cpp: In function 'long long int scheduling_cost(std::vector<int>, std::vector<int>, std::vector<int>)':
job.cpp:30:10: warning: statement has no effect [-Wunused-value]
         t+a.t;
         ~^~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 37