Submission #752364

#	Time	Username	Problem	Language	Result	Execution time	Memory
752364		jamielim	Computer Network (BOI14_network)	C++14	25 / 100	100 ms	7948 KiB

network

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

#define fi first
#define se second
#define mp make_pair
#define pb emplace_back
typedef long long ll;
typedef pair<int,int> ii;
const int INF=1012345678;

map<int,vector<int> > dista;

void findRoute (int N, int a, int b){
	int d=ping(a,b);
    for(int i=1;i<=N;i++){
		if(i==a||i==b)continue;
		int x=ping(i,a);
		dista[x].pb(i);
	}
	int cur=a;
	if(d>(N-2)/2){
		for(int i=0;i<d;i++){
			for(int j:dista[i]){
				if(ping(j,b)+i+1==d){
					cur=j;
					travelTo(j);
					break;
				}
			}
		}
		travelTo(b);
	}else{
		for(int i=0;i<d;i++){
			for(int j:dista[i]){
				if(i==0||ping(cur,j)==0){
					if(ping(j,b)+i+1==d){
						cur=j;
						travelTo(j);
						break;
					}
				}
			}
		}
		travelTo(b);
	}
}

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