Submission #1314864

#	Time	Username	Problem	Language	Result	Execution time	Memory
1314864		ninstroyer	Computer Network (BOI14_network)	C++20	100 / 100	52 ms	4332 KiB

network

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

void findRoute (int N, int a, int b)
{
    int dist = ping(a,b)+1;
    vector<vector<int>> d(dist);
    for(int i = 1; i <= N; i++)
    {
        if(i == a || i == b) continue;
        int x = ping(a,i)+1;
        if(x >= dist) continue;
        d[x].push_back(i);
    }
    int cur = b;
    vector<int> res;
    res.push_back(b);
    for(int i = dist-1; i > 0; i--)
    {
        for(auto u : d[i])
        {
            if(ping(cur,u) == 0)
            {
                res.push_back(u);
                cur = u;
                break;
            }
        }
    }
    reverse(res.begin(),res.end());
    for(int i = 0; i < res.size(); i++) travelTo(res[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