Submission #1063879

#	Time	Username	Problem	Language	Result	Execution time	Memory
1063879		pravcoder	전선 연결 (IOI17_wiring)	C++14	13 / 100	16 ms	2396 KiB

wiring

#include "wiring.h"
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> v2i;
typedef vector<ll> vl;
typedef vector<vl> v2l;
typedef pair<int, int> pi;
typedef vector<pi> vpi;
typedef vector<bool> vb;

#define pb push_back
#define mp make_pair
#define rept(i, a, b) for (int i = a; i < b; i++)
#define rep(i, n) for (int i = 0; i < n; i++)

ll sub1(vi r, vi b) {
	int n = r.size(), m = b.size();
	v2l dp(n, vl(m));
	dp[0][0] = abs(r[0] - b[0]);
	rep(i, n) {
		rep(j, m) {
			if (max(i, j) == 0) continue;
			if (i == 0) {
				dp[i][j] = dp[i][j - 1] + abs(r[i] - b[j]);
			}
			else if (j == 0) {
				dp[i][j] = dp[i - 1][j] + abs(r[i] - b[j]);
			}
			else {
				dp[i][j] = min({ dp[i - 1][j], dp[i][j - 1], dp[i - 1][j - 1] }) + abs(r[i] - b[j]);
			}
		}
	}
	return dp[n - 1][m - 1];
}

long long min_total_length(std::vector<int> r, std::vector<int> b) {
	int n = r.size(), m = b.size();
	if (max(n, m) < 200) {
		return sub1(r, b);
	}
	ll length = 0;
	b.resize(max(m, n), b[0]);
	r.resize(max(m, n), r[n - 1]);
	rep(i, r.size()) length += b[i] - r[r.size() - i - 1];
	return length;
}

Compilation message (stderr)

wiring.cpp: In function 'long long int min_total_length(std::vector<int>, std::vector<int>)':
wiring.cpp:22:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 | #define rep(i, n) for (int i = 0; i < n; i++)
......
   53 |  rep(i, r.size()) length += b[i] - r[r.size() - i - 1];
      |      ~~~~~~~~~~~                     
wiring.cpp:53:2: note: in expansion of macro 'rep'
   53 |  rep(i, r.size()) length += b[i] - r[r.size() - i - 1];
      |  ^~~

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