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#9045: 為什麼會NA


fox1001 (fox)

a290. 新手訓練系列 ~ 圖論 -- 新手訓練系列 ~ 3 | From: [140.116.187.234] | 發表日期: 2014-07-30 12:06
#include<iostream>
#include<vector>
using namespace std;
struct rd
{
int node1, node2;
};
int main()
{
long long int n, m,i,a,b;
rd c;
vector<rd>node;
while (cin >> n >> m)
{
//node.clear();
for (i = 0; i < m; i++)
{
cin >> c.node1 >> c.node2;
node.push_back(c);

}
cin >> a >> b;
int t = 0;
for (i = 0; i < m; i++)
{
if (node[i].node1 == a &&node[i].node2 == b)
t = 1;
}
if (t == 1)
cout << "Yes!!!\n";
else
cout << "No!!!\n";
}
return 0;
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