Submission #151883

#	Time	Username	Problem	Language	Result	Execution time	Memory
151883		Ruxandra985	Computer Network (BOI14_network)	C++14	75 / 100	115 ms	7388 KiB

network

#include <cstdio>
#include "network.h"
 
void findRoute (int n,int a,int b){
    int da[n+1],db[n+1];
    int i,curr,x,y,xn,yn,nxt;
    for (i=1;i<=n;i++){
        if (i!=a)
            da[i] = ping (a,i);
        if (i!=b)
            db[i] = ping (b,i);
    }
    curr = a;
    x = -1;
    y = da[b];
    while (curr!=b){
 		int more = 0;
        for (i=1;i<=n;i++){
            if (i!=curr){
                if (i!=b){
                    xn = da[i];
                    yn = db[i];
                }
                else {
                    xn = da[i];
                    yn = -1;
                }
                if (x+1 == xn && y-1 == yn){
                  	if (!more)
                    	nxt = i;
                  	else {
                      	if (ping(curr,nxt)==0)
                          break;
                      	else nxt = i;
                    }
    				more = 1;
              
                }
            }
        }
 
        travelTo(nxt);
        curr = nxt;
        x++;
        y--;
    }
 
}

Compilation message (stderr)

network.cpp: In function 'void findRoute(int, int, int)':
network.cpp:16:16: warning: 'nxt' may be used uninitialized in this function [-Wmaybe-uninitialized]
     while (curr!=b){
            ~~~~^~~
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]
     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]
             scanf("%d", &distance[u][v]);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 0 / 25