Submission #701999

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Source Code Expand

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

#define int long long
typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>inline void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>inline void chmax(T &t,U f){if(t<f)t=f;}

const int SIZE=100000;
int N;
int A[SIZE+1],B[SIZE+1];

signed main(){
    cin>>N;
    rep(i,N)cin>>A[i];
    rep(i,N)cin>>B[i];

    int ans=0;
    int cur=0,day=0,ma=0;
    rep(i,N+1){
        chmax(ma,B[i]);
        chmax(ans,cur+(N-day)*ma);

        if(i==N)break;

        int tmp=max(0ll,-A[i]-day);
        if(ma)tmp=(tmp+ma-1)/ma;
        else if(tmp)tmp=1001001001;
        cur+=tmp*ma+A[i];
        day+=tmp+1;
        if(day>N)break;
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Judge Result