Submission #1224369

#	Time	Username	Problem	Language	Result	Execution time	Memory
1224369		asli_bg	Bikeparking (EGOI24_bikeparking)	C++20	100 / 100	32 ms	6844 KiB

Main

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

#define fi first
#define se second
#define pb push_back
#define sp <<' '<<

#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)

#define cont(x) for(auto el:x) cout<<el<<' ';cout<<endl;
#define contp(x) for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;
#define DEBUG(x) cout<<#x sp x<<endl;

typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vii;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);

    int n;
    cin>>n;
    vi x(n+1), y(n+1);

    FORE(i,1,n+1) cin>>x[i];
    FORE(i,1,n+1) cin>>y[i];

    int ans=0;
    vii vec;
    FORE(i,1,n+1){
        while(!vec.empty() and y[i]>0){
            int ind=vec.back().se;
            int deg=vec.back().fi;
            vec.pop_back();
            if(deg>y[i]){
                deg-=y[i];
                x[ind]-=y[i];
                ans+=y[i];
                y[i]=0;
                vec.pb({deg,ind});
            }
            else{
                ans+=deg;
                x[ind]=0;
                y[i]-=deg;
            }
        }
        if(x[i]>0) vec.pb({x[i],i});

    }

    vec.clear();

    FORE(i,1,n+1){
        //cout<<"here" sp i sp x[i] sp y[i]<<endl;
        y[i]-=x[i];
        if(y[i]<0) y[i]=0;
        ans-=y[i];
    }

    cout<<ans<<endl;
}

• Subtask 1: 16 / 16
• Subtask 2: 9 / 9
• Subtask 3: 19 / 19
• Subtask 4: 24 / 24
• Subtask 5: 32 / 32