Submission #752467

#	Time	Username	Problem	Language	Result	Execution time	Memory
752467		125259	Computer Network (BOI14_network)	C++17	25 / 100	87 ms	4216 KiB

network

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

vector<int>v;
bool visited[1005];

void f(int n, int s, int e, int dist){
	if(dist==0) {v.push_back(e); visited[e]=1; return;}
	for(int i=1; i<=n; i++){
		if(i==s or i==e or visited[i]) continue;
		int d1=ping(s,i), d2=ping(i,e);
		if(d1 + d2 == dist-1){
			f(n,s,i,d1); f(n,i,e,d2);
			break;
		}
	}
}

void findRoute (int n, int a, int b){
	
    int dist = ping(a, b);
    f(n,a,b,dist);
    for(int i=0; i<v.size(); i++) travelTo(v[i]);
}

Compilation message (stderr)

network.cpp: In function 'void findRoute(int, int, int)':
network.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i=0; i<v.size(); i++) travelTo(v[i]);
      |                  ~^~~~~~~~~
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: 25 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25