Submission #337287

#	Time	Username	Problem	Language	Result	Execution time	Memory
337287		Register	Carnival Tickets (IOI20_tickets)	C++14	27 / 100	638 ms	51580 KiB

tickets

#include <bits/stdc++.h>
#include "tickets.h"
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef vector<int> vec;
typedef vector<vec> vvec;
const int N=1505;
int n,m,d[N];
ll sum;
vector<pair<int,int> > v;
ll find_maximum(int k,vvec x){
	n=x.size();m=x[0].size();
	vvec ans(n,vec(m,-1));
	for(int i=0;i<n;i++)
		for(int j=0;j<k;j++) {sum+=x[i][m-1-j];v.push_back(make_pair(x[i][j]+x[i][m-k+j],i));}
	sort(v.begin(),v.end());
	for(int i=0;i<n*k/2;i++) {sum-=v[i].fi;d[v[i].se]++;}
	for(int i=0;i<n;i++)
		for(int j=0;j<k;j++)
			if(j<d[i]) ans[i][j]=j;
			else ans[i][m-k+j]=j;
	allocate_tickets(ans);return sum;
}

• Subtask 1: 11 / 11
• Subtask 2: 16 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10