제출 #1171518

#제출 시각아이디문제언어결과실행 시간메모리
1171518prideliqueeeSelf Study (JOI22_ho_t2)C++20
0 / 100
146 ms5136 KiB
#include<bits/stdc++.h> using namespace std; #define int long long signed main() { ios_base::sync_with_stdio(0); cin.tie(0); int n,m; cin>>n>>m; int a[n],b[n]; for(int i=0;i<n;i++) cin>>a[i]; for(int i=0;i<n;i++) cin>>b[i]; int l=0,r=1e18*3; while(l<r) { int mid=(l+r+1)/2; int cnt=0; for(int i=0;i<n;i++) { int t=mid; if(b[i]>=a[i]) { cnt+=ceil((double)t/b[i]); continue; } if(a[i]*m>=t) { cnt+=ceil((double)t/a[i]); continue; } cnt+=m; t-=a[i]*m; cnt+=ceil((double)t/b[i]); } //cout<<l<<" "<<r<<" "<<mid<<endl; if(cnt<=n*m) l=mid; else r=mid-1; } cout<<l; }
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