Submission #42634

#	Time	Username	Problem	Language	Result	Execution time	Memory
42634		XmtosX	Computer Network (BOI14_network)	C++14	100 / 100	146 ms	58644 KiB

network

#include <bits/stdc++.h>
using namespace std;
void findRoute(int N,int a,int b);
int ping(int i,int j);
void travelTo(int k);
int n,dis[1004];
vector <int> v;
void findRoute(int N,int a,int b)
{
    n=N;
    for (int i=1;i<=n;i++)
    {
        if (i==b)
            continue;
        dis[i]=ping(i,b);
    }
    int x=dis[a],last=a;
    while (x)
    {
        for (int i=1;i<=n;i++)
        {
            if (dis[i]==x-1&&ping(i,last)==0)
            {
                last=i;
                x--;
                v.push_back(i);
                break;
            }
        }
    }
    for (int i=0;i<v.size();i++)
    {
        travelTo(v[i]);
    }
    travelTo(b);
}

Compilation message (stderr)

network.cpp: In function 'void findRoute(int, int, int)':
network.cpp:31:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i<v.size();i++)
                   ^
grader.c: In function 'int main()':
grader.c:48:39: 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:51:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &distance[u][v]);
                                         ^

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