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codeforce - BerSU Ball
jakaria_hossain
Dec 12th, 2019
145
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C++
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#include<bits/stdc++.h> using namespace std; typedef long long ll; int main() { ll m,n; cin>>n; ll boy[n+1]; for(ll i=0;i<n;i++)cin>>boy[i]; cin>>m; ll girl[m]; for(ll i=0;i<m;i++)cin>>girl[i]; sort(boy,boy+n); sort(girl,girl+m); ll i=0,j=0,c=0; while(i<n && j<m) { if(abs(boy[i]-girl[j])<=1) { //cout<<"test "<<boy[i]<<" "<<girl[j]<<endl; c++; i++; j++; } else if(girl[j]<boy[i])j++; else i++; } cout<<c<<endl; }
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