이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "tickets.h"
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef long long ll;
#define f first
#define s second
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rsz resize
const int md = 1e9+7;
const ll inf = 1e18;
const int maxn = 2e3+5;
template<class T> void ckmin(T &a, T b) { a = min(a, b); }
template<class T> void ckmax(T &a, T b) { a = max(a, b); }
int zeros[maxn], ones[maxn];
int p0[maxn], p1[maxn];
int n, m;
bool cmp(int x, int y)
{
return zeros[x]> zeros[y];
}
long long find_maximum(int k, vector< vector<int> > b)
{
n = b.size(); m = b[0].size();
vector<int> allnums;
for(int i = 0; i< n; i++)
{
for(int j = 0; j< m; j++)
{
allnums.pb(b[i][j]);
}
}
sort(all(allnums));
int mid = allnums[(n*m)/2];
ll test = 0;
for(int i = 0; i< (n*m)/2; i++) test -= allnums[i];
for(int i = (n*m)/2; i< n*m; i++) test += allnums[i];
for(int i = 0; i< n; i++)
{
for(int j = 0; j< m; j++)
{
zeros[i] += (b[i][j] < mid);
ones[i] += (b[i][j] >= mid);
}
p1[i] = zeros[i];
}
vector< vector<int> > res(n, vector<int>(m, -1));
vector<int> all_nums;
for(int i = 0; i< n; i++) all_nums.pb(i);
ll sum = 0;
for(int r = 0; r< k; r++)
{
sort(all(all_nums), cmp);
ll minus = 0, plus = 0;
for(int i = 0; i< n/2; i++)
{
int x = all_nums[i];
if(zeros[x]> 0)
{
zeros[x]--;
minus += b[x][p0[x]];
res[x][p0[x]++] = r;
}
else
{
ones[x]--;
minus += b[x][p1[x]];
res[x][p1[x]++] = r;
}
}
for(int i = n/2; i< n; i++)
{
int x = all_nums[i];
if(ones[x]> 0)
{
ones[x]--;
plus += b[x][p1[x]];
res[x][p1[x]++] = r;
}
else
{
zeros[x]--;
plus += b[x][p0[x]];
res[x][p0[x]++] = r;
}
}
sum += plus-minus;
}
allocate_tickets(res);
return test;
}
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