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>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,int(v.size())) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<x.F<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
const int N=1505;
int n,m,a[N][N];
ll sum;
vector<vector<int>> ans;
ll find_maximum(int k,vector<vector<int>> mat) {
n=mat.size(),m=mat[0].size(),ans=mat;
f(i,0,n) f(j,0,m) a[i][j]=mat[i][j],ans[i][j]=-1;
vector<pair<int,int>> vec;
f(i,0,n){
f(j,0,k){
ans[i][j]=j;
sum-=a[i][j];
vec.pb({i,j});
}
}
sort(all(vec),[&](pair<int,int> u,pair<int,int> v){ return a[u.F][u.S]+a[u.F][m-k+u.S]>a[v.F][v.S]+a[v.F][m-k+v.S];});
f(i,0,n*k/2){
sum+=a[vec[i].F][vec[i].S]+a[vec[i].F][m-k+vec[i].S];
ans[vec[i].F][vec[i].S]=-1;
ans[vec[i].F][m-k+vec[i].S]=vec[i].S;
}
allocate_tickets(ans);
return sum;
}
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