#include <bits/stdc++.h>
#include <fstream>
using namespace std;
#define endl "\n"
#define pf push_front
#define pb(s) push_back(s)
#define mp(a,b) make_pair(a,b)
#define f first
#define s second
#define ALL(v) v.begin(), v.end()
#define ALLA(arr, sz) arr, arr + sz
#define SORT(v) sort(ALL(v))
#define REVERSE(v) reverse(ALL(v))
#define SORTA(arr, sz) sort(ALLA(arr, sz))
#define REVERSEA(arr, sz) reverse(ALLA(arr, sz))
#define PI 3.14159265358979323846264338327950L
#define lb lower_bound
#define ub upper_bound
typedef long long ll;
typedef long double ld;
typedef string str;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<char> vc;
typedef vector<str> vs;
typedef vector<ld> vd;
typedef vector<str> vs;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<pld> vpd;
const int MOD = 1000000007;
const int dx[4]= {-1,1,0,0}, dy[4]= {0,0,-1,1}; //flood
int N,M;
vi l,r;
bool ok(int ugly)
{
int cnt=0,j=0;
for(int i=0;i<N&&j<M;++i)
{
int curr=l[i];
while(j<M&&abs(r[j]-curr)>ugly)++j;
if(j>=m)break;
cnt++;
++j;
}
return cnt>=N;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
//ifstream cin (".in");
//ofstream cout (".out");
cin>>N>>M;
for(int i=0;i<N;++i){
int a;
cin>>a;
l.pb(a);
}
for(int i=0;i<M;++i)
{
int b;
cin>>b;
r.pb(b);
}
if(N>M)
{
swap(l,r);
swap(N, M);
}
SORT(l);
SORT(r);
int lo=0,hi=1e9;
while(lo<hi)
{
int mid=(lo+hi)/2;
if(ok(mid)){
hi=mid;
}
else{
lo=mid+1;
}
}
cout<<lo<<endl;
return 0;
}
Compilation message
cipele.cpp: In function 'bool ok(int)':
cipele.cpp:55:15: error: 'm' was not declared in this scope
if(j>=m)break;
^
