// 還要更強
#include<iostream>
#include<queue>
#include<set>
#include<map>
#include<iomanip>
#include<math.h>
#include<cstring>
#include<stack>
#include<string.h>
#include<random>
#include<algorithm>
#include<vector>
#define ll long long
#define int __int_128
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define REP(i,a,b) for(int i=a;i>=b;i--)
#define INF (ll)(2e18)
#define pb push_back
#define F first
#define S second
using namespace std;
ll n,m;
ll A[300005],B[300005];
bool check(ll x){
ll res=0;
FOR(i,0,n){
int tmp=x;
if(1ll*A[i]*m<tmp){
tmp-=A[i]*m;
res-=tmp/B[i]+(tmp%B[i]?1:0);
}
else{
int used=(tmp-1)/A[i]+1;
res+=m-used;
}
}
if(res>=0) return 1;
return 0;
}
signed main(){
cin>>n>>m;
FOR(i,0,n){
cin>>A[i];
}
FOR(i,0,n){
cin>>B[i]; A[i]=max(A[i],B[i]);
}
int l=0,r=(1e18+1),ans=0;
while(l<r){
int mid=(l+r)>>1;
if(check(mid)){
ans=max(ans,mid); l=mid+1;
}
else{
r=mid;
}
}
cout<<ans<<endl;
}
Compilation message
Main.cpp: In function 'bool check(long long int)':
Main.cpp:16:13: error: '__int_128' was not declared in this scope; did you mean '__rintf128'?
16 | #define int __int_128
| ^~~~~~~~~
Main.cpp:32:9: note: in expansion of macro 'int'
32 | int tmp=x;
| ^~~
Main.cpp:33:23: error: 'tmp' was not declared in this scope; did you mean 'tm'?
33 | if(1ll*A[i]*m<tmp){
| ^~~
| tm
Main.cpp:38:17: error: expected ';' before 'used'
38 | int used=(tmp-1)/A[i]+1;
| ^~~~
Main.cpp:39:20: error: 'used' was not declared in this scope
39 | res+=m-used;
| ^~~~
Main.cpp: In function 'int main()':
Main.cpp:16:13: error: '__int_128' was not declared in this scope; did you mean '__rintf128'?
16 | #define int __int_128
| ^~~~~~~~~
Main.cpp:54:5: note: in expansion of macro 'int'
54 | int l=0,r=(1e18+1),ans=0;
| ^~~
Main.cpp:55:11: error: 'l' was not declared in this scope
55 | while(l<r){
| ^
Main.cpp:55:13: error: 'r' was not declared in this scope
55 | while(l<r){
| ^
Main.cpp:56:13: error: expected ';' before 'mid'
56 | int mid=(l+r)>>1;
| ^~~
Main.cpp:57:18: error: 'mid' was not declared in this scope
57 | if(check(mid)){
| ^~~
Main.cpp:58:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
58 | ans=max(ans,mid); l=mid+1;
| ^~~
| abs
Main.cpp:64:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
64 | cout<<ans<<endl;
| ^~~
| abs
