Submission #122378

#	Time	Username	Problem	Language	Result	Execution time	Memory
122378		bekzhan29	Mousetrap (CEOI17_mousetrap)	C++14	0 / 100	356 ms	76536 KiB

mousetrap

//#include <bits/stdc++.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <unordered_map>
#include <set>
#include <queue>
using namespace std;
#define pb push_back
#define mp make_pair
#define INF 1e9
#define mod 1000000007
#define eps 1e-6
#define abs(x) ((x)>=0?(x):-(x))
#define y1 solai
#define fi first
#define se second
typedef long long ll;
void read(ll &x)
{
	scanf("%lld",&x);
}
void read(ll &x, ll &y)
{
	scanf("%lld%lld",&x,&y);
}
void read(ll &x, ll &y, ll &z)
{
	scanf("%lld%lld%lld",&x,&y,&z);
}
void print(ll x)
{
	printf("%lld ",x);
}
void println(ll x)
{
	printf("%lld\n",x);
}
const ll N=1000100;
ll n,t,m,x,y;
vector<ll>v[N];
int main()
{
	cin>>n>>t>>m;
	for(ll i=1;i<n;i++)
	{
		read(x,y);
		v[x].pb(y);
		v[y].pb(x);
	}
	println(v[m].size()-1);
}

Compilation message (stderr)

mousetrap.cpp: In function 'void read(ll&)':
mousetrap.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&x);
  ~~~~~^~~~~~~~~~~
mousetrap.cpp: In function 'void read(ll&, ll&)':
mousetrap.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&x,&y);
  ~~~~~^~~~~~~~~~~~~~~~~~
mousetrap.cpp: In function 'void read(ll&, ll&, ll&)':
mousetrap.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%lld",&x,&y,&z);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 25
• Subtask 3: 0 / 20
• Subtask 4: 0 / 35