#include "tickets.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define sz(x) (int)x.size()
#define cmin(a, b) a=min(a, b)
#define cmax(a, b) a=max(a, b)
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define pb push_back
#define int long long
using namespace std;
int n, m, k;
vector<vector<int>> a;
int find_maximum(signed K, vector<vector<signed>> x) {
n=sz(x), m=sz(x[0]), k=K;
a.resize(n, vector<int>(m));
for (int i=0; i<n; i++) for (int j=0; j<m; j++) a[i][j]=x[i][j];
vector<int> small(n), big(n);
for (int i=0; i<n; i++) {
small[i]=a[i][0], big[i]=a[i][0];
for (int j=1; j<m; j++) cmin(small[i], a[i][j]), cmax(big[i], a[i][j]);
}
int res=0;
vector<vector<signed>> ans(n, vector<signed>(m, -1));
if (m==1) {
ans.clear(), ans.resize(n, vector<signed>(m, 0));
allocate_tickets(ans);
vector<int> b; for (int i=0; i<n; i++) b.pb(a[i][0]);
sort(all(b));
for (int i=0; i<n/2; i++) res+=b[n-i-1]-b[i];
return res;
}
vector<bool> side(n, 0); for (int i=n/2; i<n; i++) side[i]=1, res+=big[i];
for (int i=0; i<n/2; i++) res-=small[i];
while (1) {
int bestleft=-1, bestright=-1;
for (int i=0; i<n; i++) {
if (!side[i]) {
if (bestleft==-1 || big[i]+small[i]>big[bestleft]+small[bestleft]) bestleft=i;
} else {
if (bestright==-1 || big[i]+small[i]<big[bestright]+small[bestright]) bestright=i;
}
}
if (big[bestleft]+small[bestleft]-big[bestright]-small[bestright]>0) {
side[bestleft]=1, side[bestright]=0;
res+=big[bestleft]+small[bestleft]-big[bestright]-small[bestright];
} else break;
}
for (int i=0; i<n; i++) {
int val=small[i];
if (side[i]) val=big[i];
for (int j=0; j<m; j++) {
if (a[i][j]==val) {
ans[i][j]=0;
break;
}
}
}
allocate_tickets(ans);
return res;
}
