Submission #397596

#	Time	Username	Problem	Language	Result	Execution time	Memory
397596		lyc	Computer Network (BOI14_network)	C++14	100 / 100	119 ms	7900 KiB

network

#include "network.h"
#include <bits/stdc++.h>
using namespace std;

int _ping(int a, int b) {
    if (a == b) return -1;
    return ping(a,b);
}

void findRoute (int N, int a, int b)
{
    int dist[N+1];
    for (int i = 1; i <= N; ++i) {
        dist[i] = _ping(a,i);
    }

    vector<int> v = {b};
    for (int d = dist[b]-1; d >= 0; --d) {
        for (int i = 1; i <= N; ++i) if (dist[i] == d && _ping(v.back(),i) == 0) {
            v.push_back(i);
            break;
        }
    }

    for (int i = (int)v.size()-1; i >= 0; --i) {
        travelTo(v[i]);
    }
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:48:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   48 |     scanf ("%d%d%d%d", &N, &a, &b, &M);
      |     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
grader.c:51:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   51 |             scanf("%d", &distance[u][v]);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 25 / 25