제출 #418830

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
418830		ResiBamboo	Garage (IOI09_garage)	C++17	75 / 100	2 ms	488 KiB

garage

#include <bits/stdc++.h>
using namespace std;

using str = string; // yay python!
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pi;
typedef vector <ll> vl;

#define FOR(i, a, b) for (int i=a; i<b; i++)
#define F0R(i, a) for (int i=0; i<a; i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define vt vector
#define pb push_back
#define all(c) (c).begin(), (c).end()
#define sz(x) (int)size(x)
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound

string to_string(char c) {
  return string(1, c);
}
string to_string(bool b) {
  return b?"true":"false";
}
string to_string(const char* s) {
	return string(s);
}
string to_string(string s) {
	return s;
}
template<class A> void write(A x) {
	cout << to_string(x);
}
template<class H, class... T> void write(const H& h, const T&... t) { 
	write(h);
	write(t...);
}
void print() {
	write("\n");
}
template<class H, class... T> void print(const H& h, const T&... t) { 
	write(h);
	if(sizeof...(t))
		write(' ');
	print(t...);}

const int d4i[4]={-1, 0, 1, 0}, d4j[4]={0, 1, 0, -1};
const int d8i[8]={-1, -1, 0, 1, 1, 1, 0, -1}, d8j[8]={0, 1, 1, 1, 0, -1, -1, -1};

const int mod=1000000007;
//-------------------####Real Programming###------------------


void setIO(string name=""){
	ios_base::sync_with_stdio(0); cin.tie(0);
	if((int)name.size() > 0){freopen((name+".in").c_str(), "r", stdin);freopen((name+".out").c_str(), "w", stdout);}
}

int open[101]; //the parking lot that are open
queue<int> wait;//the number of cars
int prices[101];//use the number of parking lot to access
int cars[1001];//use the number of cars to access weight
int record[1001];//r[number of car]==the number of parking lot it was at
int N,M;

int findspot(){
  FOR(i,1,N+1) if(open[i]) return i;
  return -1;
}
void solve(){
  int ans=0;
  cin>>N>>M;
  FOR(i,1,N+1){
    cin>>prices[i];
    open[i]=1;
  }FOR(i,1,M+1){
    cin>>cars[i];
  }
  F0R(i,2*M){
    int n; cin>>n;
    if (findspot()==-1&&n>0) wait.push(n);
    else if(n>0){
      int j=findspot();
      ans+=cars[n]*prices[j];
      open[j]=0;
      record[n]=j;
    }else if(n<0){
      if(!wait.empty()){
        ans+=cars[wait.front()]*prices[record[abs(n)]];
        record[wait.front()]=record[abs(n)];
        wait.pop();
      }else{open[record[abs(n)]]=1;}
    }
  }
  cout<<ans<<"\n";
}

int main(){
  setIO("");
  //int t; cin>>t; while(t--)
  solve();
  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

garage.cpp: In function 'void setIO(std::string)':
garage.cpp:62:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |  if((int)name.size() > 0){freopen((name+".in").c_str(), "r", stdin);freopen((name+".out").c_str(), "w", stdout);}
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
garage.cpp:62:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |  if((int)name.size() > 0){freopen((name+".in").c_str(), "r", stdin);freopen((name+".out").c_str(), "w", stdout);}
      |                                                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 75 / 100