Submission #73798115

Source Code Expand

import java.util.*;

public class Main {

    static long dist(long x1, long y1, long x2, long y2) {
        long dx = x1 - x2;
        long dy = y1 - y2;
        return dx * dx + dy * dy;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();

        long[] X = new long[N];
        long[] Y = new long[N];

        for (int i = 0; i < N; i++) {
            X[i] = sc.nextLong();
            Y[i] = sc.nextLong();
        }

        int FULL = 1 << N;
        long INF = Long.MAX_VALUE / 4;

        long[][] dp = new long[FULL][N];

        for (int i = 0; i < FULL; i++)
            Arrays.fill(dp[i], INF);

        // Start from node 0
        dp[1][0] = 0;

        for (int mask = 0; mask < FULL; mask++) {
            for (int u = 0; u < N; u++) {

                if ((mask & (1 << u)) == 0) continue;

                for (int v = 0; v < N; v++) {

                    if ((mask & (1 << v)) != 0) continue;

                    int nextMask = mask | (1 << v);

                    long cost = dp[mask][u] +
                            dist(X[u], Y[u], X[v], Y[v]);

                    dp[nextMask][v] = Math.min(dp[nextMask][v], cost);
                }
            }
        }

        long answer = INF;

        for (int i = 1; i < N; i++) {
            long totalCost = dp[FULL - 1][i] +
                    dist(X[i], Y[i], X[0], Y[0]);

            answer = Math.min(answer, totalCost);
        }

        System.out.println(answer);
    }
}

Submission Info

Submission Time
Task E - Optimization of Delivery Routes
User saiganesh_
Language Java24 (OpenJDK 24.0.2)
Score 433
Code Size 1596 Byte
Status AC
Exec Time 138 ms
Memory 50992 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 433 / 433
Status
AC × 3
AC × 74
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt, in69.txt, in70.txt, in71.txt
Case Name Status Exec Time Memory
in01.txt AC 79 ms 40836 KiB
in02.txt AC 71 ms 40660 KiB
in03.txt AC 68 ms 40148 KiB
in04.txt AC 69 ms 40504 KiB
in05.txt AC 85 ms 41348 KiB
in06.txt AC 135 ms 50896 KiB
in07.txt AC 134 ms 50748 KiB
in08.txt AC 132 ms 50644 KiB
in09.txt AC 125 ms 50720 KiB
in10.txt AC 132 ms 50656 KiB
in11.txt AC 135 ms 50696 KiB
in12.txt AC 133 ms 50572 KiB
in13.txt AC 132 ms 50776 KiB
in14.txt AC 106 ms 45832 KiB
in15.txt AC 129 ms 50692 KiB
in16.txt AC 71 ms 40660 KiB
in17.txt AC 130 ms 50704 KiB
in18.txt AC 129 ms 50856 KiB
in19.txt AC 130 ms 50696 KiB
in20.txt AC 129 ms 50968 KiB
in21.txt AC 131 ms 50820 KiB
in22.txt AC 133 ms 50688 KiB
in23.txt AC 138 ms 50588 KiB
in24.txt AC 131 ms 50936 KiB
in25.txt AC 74 ms 40544 KiB
in26.txt AC 84 ms 41420 KiB
in27.txt AC 69 ms 40676 KiB
in28.txt AC 68 ms 40124 KiB
in29.txt AC 70 ms 41152 KiB
in30.txt AC 68 ms 40296 KiB
in31.txt AC 71 ms 40348 KiB
in32.txt AC 79 ms 40940 KiB
in33.txt AC 70 ms 40700 KiB
in34.txt AC 70 ms 40184 KiB
in35.txt AC 129 ms 50636 KiB
in36.txt AC 133 ms 50956 KiB
in37.txt AC 68 ms 40288 KiB
in38.txt AC 75 ms 41084 KiB
in39.txt AC 90 ms 42060 KiB
in40.txt AC 91 ms 43608 KiB
in41.txt AC 67 ms 40168 KiB
in42.txt AC 69 ms 40452 KiB
in43.txt AC 131 ms 50720 KiB
in44.txt AC 128 ms 50684 KiB
in45.txt AC 129 ms 50716 KiB
in46.txt AC 129 ms 50560 KiB
in47.txt AC 126 ms 50716 KiB
in48.txt AC 128 ms 50616 KiB
in49.txt AC 131 ms 50728 KiB
in50.txt AC 131 ms 50728 KiB
in51.txt AC 131 ms 50992 KiB
in52.txt AC 75 ms 40752 KiB
in53.txt AC 71 ms 40852 KiB
in54.txt AC 68 ms 40224 KiB
in55.txt AC 69 ms 40388 KiB
in56.txt AC 70 ms 39964 KiB
in57.txt AC 68 ms 40112 KiB
in58.txt AC 69 ms 40336 KiB
in59.txt AC 69 ms 40008 KiB
in60.txt AC 69 ms 40908 KiB
in61.txt AC 71 ms 40640 KiB
in62.txt AC 69 ms 40468 KiB
in63.txt AC 71 ms 40708 KiB
in64.txt AC 129 ms 50776 KiB
in65.txt AC 130 ms 50820 KiB
in66.txt AC 71 ms 40856 KiB
in67.txt AC 68 ms 40140 KiB
in68.txt AC 69 ms 40772 KiB
in69.txt AC 70 ms 40904 KiB
in70.txt AC 131 ms 50688 KiB
in71.txt AC 124 ms 50632 KiB
sample01.txt AC 68 ms 40496 KiB
sample02.txt AC 69 ms 40712 KiB
sample03.txt AC 69 ms 40408 KiB