이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "tickets.h"
#include<bits/stdc++.h>
#include <vector>
using namespace std;
typedef long long ll;
long long find_maximum(int k, vector<vector<int> > x) {
int n = x.size();
int m = x[0].size();
vector<vector<int> > answer;
vector<pair<ll,ll> > p;
for (int i = 0; i < n; i++) {
vector<int> row(m);
for (int j = 0; j < m; j++)
row[j] = -1;
answer.push_back(row);
}
ll l[n+5],r[n+5],y,tul=0,u,su[n+5];
for(int i=0; i<n; i++){
l[i]=0;
r[i]=m-1;
su[i]=0;
for(int j=0; j<k; j++) su[i]+=x[i][j];
for(int j=m-1; j>=m-k; j--) su[i]+=x[i][j];
}
for(int o=0; o<k; o++){
p.resize(0);
for(int i=0; i<n; i++) p.push_back({su[i],i});
sort(p.begin(),p.end());
u=p[n/2].second;
u=x[u][r[u]];
for(int i=0; i<n; i++) if(i<n/2){
y=p[i].second;
answer[y][l[y]]=o;
tul+=u-x[y][l[y]];
su[y]-=x[y][l[y]];
su[y]-=x[y][r[y]-k+o];
l[y]++;
}
else{
y=p[i].second;
answer[y][r[y]]=o;
tul+=x[y][r[y]]-u;
su[y]-=x[y][r[y]];
su[y]-=x[y][l[y]+k-o];
r[y]--;
}
}
allocate_tickets(answer);
return tul;
}
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