Submission #1202271

#	Time	Username	Problem	Language	Result	Execution time	Memory
1202271		MongHwa	Wiring (IOI17_wiring)	C++20	0 / 100	0 ms	328 KiB

wiring

#include "wiring.h"
using namespace std;

#define INF 0x7f7f7f7f
bool chk[100005];

long long min_total_length(std::vector<int> r, std::vector<int> b) {
	int n = (int)r.size(), m = (int)b.size();

	long long ans = 0;
	for(int i = 0; i < n; i++)
	{
		int lval = INF, rval = INF, lpos = -1, rpos = -1;
		auto it = lower_bound(b.begin(), b.end(), r[i]);
		if(it != b.end())
		{
			rval = *it-r[i];
			rpos = it-b.begin();
		}
		if(it != b.begin())
		{
			it = prev(it);
			lval = r[i]-*it;
			lpos = it-b.begin();
		}

		if(lval < rval)
		{
			ans += lval;
			chk[lpos] = 1;
		}
		else if(lval > rval)
		{
			ans += rval;
			chk[rpos] = 1;
		}
		else
		{
			ans += lval;
			if(!chk[lpos] && chk[rpos])
				chk[lpos] = 1;
			else if(chk[lpos] && !chk[rpos])
				chk[rpos] = 1;
			else
				chk[lpos] = 1;
		}
	}

	for(int i = 0; i < m; i++)
	{
		if(chk[i])
			continue;
		
		int lval = INF, rval = INF;
		auto it = lower_bound(r.begin(), r.end(), b[i]);
		if(it != r.end())
			rval = *it-b[i];
		if(it != r.begin())
		{
			it = prev(it);
			lval = b[i]-*it;
		}

		ans += min(lval, rval);
	}

	return ans;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45