Submission #752440

#	Time	Username	Problem	Language	Result	Execution time	Memory
752440		jamielim	Computer Network (BOI14_network)	C++14	25 / 100	82 ms	4244 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;

int dista[1005];
set<int> found;

void findRoute (int N, int a, int b){
	int d=ping(a,b)+1;
	found.insert(0);
	found.insert(d);
	memset(dista,-1,sizeof(dista));
	dista[0]=a;
	dista[d]=b;
    for(int i=1;i<=N;i++){
		if(i==a||i==b)continue;
		int x=ping(i,a)+1;
		if(dista[x]!=-1)continue;
		if(x>d)continue;
		auto it=found.upper_bound(x);
		int y=ping(i,dista[*it])+1;
		if(x+y==(*it)){
			dista[x]=i;
			found.insert(x);
		}
	}
	for(int i=1;i<=d;i++)travelTo(dista[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: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25