Submission #1139135

#	Time	Username	Problem	Language	Result	Execution time	Memory
1139135		PlayVoltz	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t4

#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
using namespace std;

#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin>>n;
	vector<pii> vect(2*n+1);
	for (int i=1; i<=2*n; ++i)cin>>vect[i].fi>>vect[i].se;
	sort(vect.begin()+1, vect.end());
	vector<vector<int> > dp(n+1, vector<int>(n+1, LLONG_MAX/2));
	dp[0][0]=0;
	for (int i=0; i<=n; ++i){
		for (int j=max(0ll, i-2); j<=min(n, i+2); ++j){
			if (!i&&!j)continue;
			if (i>=1)dp[i][j]=min(dp[i][j], dp[i-1][j]+abs(vect[i+j].fi-i)+abs(vect[i+j].se-1));
			if (j>=1)dp[i][j]=min(dp[i][j], dp[i][j-1]+abs(vect[i+j].fi-j)+abs(vect[i+j].se-2));
		}
	}
	cout<<dp[n][n];
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63