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 <vector>
#include <bits/stdc++.h>
using namespace std;
long long dp[81][6400];
const long long nn=-1e18;
const long long INF=1e16;
long long find_maximum(int k, vector<vector<int>> v) {
int n = v.size();
int m = v[0].size();
vector<vector<int>> answer(n,vector<int>(m));
dp[0][0]=0;
for(int i=1;i<=(n*k)/2;i++) {
dp[0][i]=-INF;
}
for(int i=1;i<=n;i++) {
for(int j=0;j<=(n*k)/2;j++) {
dp[i][j]=-INF;
long long sum=0;
for(int l=0;l<k;l++) {
sum-=v[i-1][l];
}
for(int l=0;l<=k&&l<=j;l++) {
dp[i][j]=max(dp[i][j],dp[i-1][j-l]+sum);
if (l!=k) {
sum+=v[i-1][m-l-1];
sum+=v[i-1][k-l-1];
}
}
}
}
long long ret=dp[n][(n*k)/2];
int now=(n*k)/2;
for(int i=n-1;i>=0;i--) {
int val=-1;
long long sum=0;
for(int j=0;j<k;j++) {
sum-=v[i][j];
}
for(int j=0;j<=k&&j<=now;j++) {
if (dp[i][now-j]+sum==dp[i+1][now]) {
val=j;
now-=j;
break;
}
if (j!=k) {
sum+=v[i][m-j-1];
sum+=v[i][k-j-1];
}
}
if (val==-1) {
exit(-1);
}
int cnt=0;
for(int j=0;j<m;j++) {
if (j<k-val||j>=m-val) {
answer[i][j]=cnt++;
}
else {
answer[i][j]=-1;
}
}
}
allocate_tickets(answer);
return ret;
}
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