Submission #471455

#	Time	Username	Problem	Language	Result	Execution time	Memory
471455		dxz05	Wiring (IOI17_wiring)	C++14	20 / 100	42 ms	6276 KiB

wiring

#include "wiring.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5 + 3e2;
typedef long long ll;

ll dp[222][222];

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

    if (r.back() < b.front()) {
        ll ans = 0;
        for (int i = 0; i < min(n, m); i++) {
            ans += abs(r[i] - b[i]);
        }

        if (n < m) {
            for (int i = n; i < m; i++) {
                ans += abs(b[i] - r.back());
            }
        } else {
            for (int i = m; i < n; i++) {
                ans += abs(r[i] - b.front());
            }
        }
        return ans;
    }

    for (int j = 1; j <= m; j++){
        dp[1][j] = dp[1][j - 1] + abs(b[j - 1] - r[0]);
    }

    for (int i = 1; i <= n; i++){
        dp[i][1] = dp[i - 1][1] + abs(r[i - 1] - b[0]);
    }

    for (int i = 2; i <= n; i++){
        for (int j = 2; j <= m; j++){
            dp[i][j] = min({dp[i - 1][j], dp[i][j - 1], dp[i - 1][j - 1]}) + abs(r[i - 1] - b[j - 1]);
        }
    }

    return dp[n][m];
}

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