Submission #752560

#	Time	Username	Problem	Language	Result	Execution time	Memory
752560		penguin133	Computer Network (BOI14_network)	C++17	0 / 100	92 ms	4804 KiB

network

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

//#define int long long
#include "network.h"
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

vector <int> tmp[10005];

void findRoute (int N, int a, int b)
{
	int hi;
    for(int i=1;i<=N;i++){
		int x = ping(i, b);
		if(i == a)hi = x;
		else tmp[x].push_back(i);
	}
	int cur = a;
	while(hi){
		for(auto i : tmp[hi-1]){
			if(ping(cur, i) == 1){
				travelTo(i);
				cur = i;
				hi--;
				break;
			}
		}
	}
}

Compilation message (stderr)

network.cpp: In function 'void findRoute(int, int, int)':
network.cpp:19:6: warning: 'hi' may be used uninitialized in this function [-Wmaybe-uninitialized]
   19 |  int hi;
      |      ^~
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: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25