Submission #472184

#TimeUsernameProblemLanguageResultExecution timeMemory
472184Mr_OK_ManCipele (COCI18_cipele)C++17
90 / 90
315 ms3652 KiB
#include <bits/stdc++.h> using namespace std; long long n,m,s=0; vector<long long> a,b; long long f(long long x) { long long now=0; for(int i=0;i<n;i++) { long long g=lower_bound(b.begin()+now,b.end(),a[i]-x)-b.begin(); if(g==m)return 0; if(b[g]>a[i]) { if(b[g]-a[i]>x) { return 0; } } now=g+1; } return 1; } int main() { cin>>n>>m; a.resize(n); b.resize(m); for(int i=0;i<n;i++) { cin>>a[i]; } for(int i=0;i<m;i++) { cin>>b[i]; } sort(a.begin(),a.end()); sort(b.begin(),b.end()); if(n>m) { swap(n,m); swap(a,b); } long long l=0,r=1e18; for(int i=0;i<100;i++) { long long mid=(l+r)/2; if(f(mid)) { r=mid; } else {l=mid; } } cout<<r<<endl; /*for(auto i:b) { cout<<i<<endl; }*/ // cout<<s<<endl; return 0; }
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