Submission #416396

#	Time	Username	Problem	Language	Result	Execution time	Memory
416396		schse	Wiring (IOI17_wiring)	C++17	0 / 100	1 ms	332 KiB

wiring

#include <bits/stdc++.h>
#ifndef EVAL
#include "grader.cpp"
#endif
#define ll long long
#include "wiring.h"
using namespace std;

ll min(ll a, ll b, ll c)
{
	return std::min(a, std::min(b, c));
}

long long min_total_length(std::vector<int> r, std::vector<int> b)
{
	vector<vector<long long>> dp(2, vector<long long>(b.size() + 1, INT64_MAX));
	dp[0][0] = 0;

	for (int i = 1; i <= r.size(); i++)
	{
		dp[i % 2][max(0, i - 26)] = INT64_MAX;
		for (int e = max(1, i - 25); e <= b.size() && e <= i + 25; e++)
		{
			dp[(i) % 2][i + e] = min(dp[(i - 1) % 2][i + e - 1],
									 dp[(i) % 2][e - 1],
									 dp[(i - 1) % 2][e]) +
								 abs((ll)r[i - 1] - (ll)b[e - 1]);
		}
	}
	return dp[r.size() % 2][b.size()];
}

Compilation message (stderr)

wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for (int i = 1; i <= r.size(); i++)
      |                  ~~^~~~~~~~~~~
wiring.cpp:22:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for (int e = max(1, i - 25); e <= b.size() && e <= i + 25; e++)
      |                                ~~^~~~~~~~~~~

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