This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "tickets.h"
#include "bits/stdc++.h"
using namespace std;
#define ar array
typedef long long ll;
//~ #define int ll
ll find_maximum(int k, vector<vector<int>> x) {
int n = x.size();
int m = x[0].size();
ll ans = -1;
vector<int> lor_;
auto check = [&](int mid){
ll res = 0;
ar<int, 2> all {};
vector<ar<int, 2>> diff;
vector<int> lor(n);
for(int i=0;i<n;i++){
if(x[i][m - 1] < mid || mid < x[i][0]){
if(mid < x[i][0]) all[1]++, res += x[i][m - 1] - mid, lor[i] = 1;
else all[0]++, res += mid - x[i][0];
continue;
}
all[0]++;
res += mid - x[i][0];
diff.push_back({(x[i][m - 1] - mid) - (mid - x[i][0]), i});
}
if(all[1] * 2 > n) return;
sort(diff.begin(), diff.end());
while(all[1] * 2 < n){
all[0]--;
all[1]++;
res += diff.back()[0];
lor[diff.back()[1]] = 1;
}
if(ans < res){
ans = res;
lor_ = lor;
}
};
for(int i=0;i<n;i++){
check(x[i][0]);
check(x[i][1]);
}
vector<vector<int>> res(n, vector<int>(m, -1));
for(int i=0;i<n;i++){
if(lor_[i]) res[i][m - 1] = 0;
else res[i][0] = 0;
}
allocate_tickets(res);
return ans;
}
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