你梦熊账号是啥
by lottle1212 @ 2024-04-14 10:55:03
6
by lizhengdong @ 2024-04-14 11:02:45
@[5Z_tiansongyu](/user/969415)
这是我们的比赛 T1（你是不是 CW 的
```cpp
#include<bits/stdc++.h>
#define ll long long
using namespace std;
mt19937 myrand(time(0));
inline ll read(){
ll x=0,w=1;
char ch=0;
while(ch<'0'||ch>'9'){
if(ch=='-')w=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9'){
x=(x<<3)+(x<<1)+(ch^48);
ch=getchar();
}
return x*w;
}
void write(ll x){
if(x<0){
putchar('-');
x=-x;
}
static int sta[35];
int top=0;
do{
sta[top++]=x%10,x/=10;
}while(x);
while(top)putchar(sta[--top]+'0');
}
int t,n,k,mp[100005];
struct edge{
int l,r;
}a[100005];
int main(){
t=read();
while(t--){
int l1=0,r1=0,mid=0;
memset(a,0,sizeof(a));
n=read();k=read();
for(int i=1;i<=n;i++){
a[i].l=read();
a[i].r=read();
if(k<a[i].r&&k>a[i].l)l1++,r1++,mid++;
if(k==a[i].r&&k>a[i].l)l1++,mid++;
if(k<a[i].r&&k==a[i].l)r1++,mid++;
if(k==a[i].r&&k==a[i].l)mid++;
}
if(mid==l1||mid==r1)puts("NO");
else puts("YES");
}
return 0;
}
```
by A_R_O_N_A @ 2024-04-14 14:57:49