Submission #45095

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
45095	2018-04-11 09:02:21	nibnalin	Computer Network (BOI14_network)	C++17	50 / 100	172 ms	24088 KiB

network

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#include <iostream>
#include <cstdio>
#include <vector>
#include "network.h"
using namespace std;
const int maxn = int(1e3)+5;
int D[2][maxn];
void findRoute (int n, int a, int b)
{
  for(int i = 1;i <= n;i++)
  {
    if(i != a) D[0][i] = ping(a, i)+1;
    if(i != b) D[1][i] = ping(b, i)+1;
    //cout << i << " " << D[0][i] << " " << D[1][i] << "\n";
  }
  int cur = a;
  while(cur != b)
  {
    for(int i = 1;i <= n;i++)
    {
      if(D[0][i] == D[0][cur]+1 && D[0][i]+D[1][i] == D[0][b] && ping(cur, i) == 0)
      {
        travelTo(i);
        cur = i;
        break;
      }
 
 
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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]
     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]
             scanf("%d", &distance[u][v]);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 0 / 25