Submission #1314888

#	Time	Username	Problem	Language	Result	Execution time	Memory
1314888		gotzillaz	Computer Network (BOI14_network)	C++17	0 / 100	50 ms	4204 KiB

network

#include "network.h"
#include <vector>

using namespace std;

void findRoute(int N, int a, int b) {
  vector<vector<int>> sp(N + 1, vector<int>());
  int pb = 0;
  vector<int> ans = {b};
  for (int i = 1; i <= N; i++) {
    if (i == a)
      continue;
    int x = ping(a, i);
    sp[x].push_back(i);
    if (i == b) {
      pb = x;
      break;
    }
  }
  int now = b;
  for (int i = pb - 1; i >= 0; i--) {
    for (int k = 0; k <= sp[i].size(); k++) {
      int x = ping(now, sp[i][k]);
      if (x == 0) {
        ans.push_back(sp[i][k]);
        now = sp[i][k];
        break;
      }
    }
  }
  // ans.push_back(a);
  // for (int i = 0; i < ans.size(); i++)
  // cout << ans[i] << endl;
  for (int i = ans.size() - 1; i >= 0; i--) {
    // cout << ans[i] << " " << N << endl;
    travelTo(ans[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: 0 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25