Submission #54673

#	Time	Username	Problem	Language	Result	Execution time	Memory
54673		okaybody10	Garage (IOI09_garage)	C++98	100 / 100	4 ms	844 KiB

garage

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
queue<int> wait;
priority_queue<int> parking;
int cost[1006],car[10007],weight[10006];
int main()
{
	int N,M; scanf("%d %d",&N,&M);
	ll ans=0;
	for(int i=1;i<=N;i++) parking.push(-i);
	for(int i=1;i<=N;i++) scanf("%d",&cost[i]);
	for(int i=1;i<=M;i++) scanf("%d",&weight[i]);
	for(int i=0;i<2*M;i++)
	{
		int t; scanf("%d",&t);
		if(t<0) parking.push(-car[-t]);
		else
		{
			if(parking.size()==0) wait.push(t);
			else
			{
				int v=-parking.top();
				parking.pop();
				car[t]=v; ans+=weight[t]*cost[v];
			}
		}
		while(!wait.empty() && !parking.empty())
		{
			int c1=wait.front(); wait.pop();
			int c2=-parking.top(); parking.pop();
			car[c1]=c2; ans+=cost[c2]*weight[c1];
		}
	}
	return !printf("%lld",ans);
}

Compilation message (stderr)

garage.cpp: In function 'int main()':
garage.cpp:9:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int N,M; scanf("%d %d",&N,&M);
           ~~~~~^~~~~~~~~~~~~~~
garage.cpp:12:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=N;i++) scanf("%d",&cost[i]);
                        ~~~~~^~~~~~~~~~~~~~~
garage.cpp:13:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=M;i++) scanf("%d",&weight[i]);
                        ~~~~~^~~~~~~~~~~~~~~~~
garage.cpp:16:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int t; scanf("%d",&t);
          ~~~~~^~~~~~~~~

• Subtask 1: 100 / 100