mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
7a2a9109f5
2600-2699
53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
#include<stdio.h>
|
|
#include<string.h>
|
|
char hash[12000005];
|
|
int main()
|
|
{
|
|
int N,i,A,B,j,p,q,temp;
|
|
char s[100];
|
|
while(scanf("%d",&N)!=EOF)
|
|
{
|
|
memset(hash,0,sizeof(hash));
|
|
scanf("%d %d",&p,&q);
|
|
if(p>q)
|
|
{
|
|
temp=p;
|
|
p=q;
|
|
q=temp;
|
|
}
|
|
for(i=0;i<N;i++)
|
|
{
|
|
scanf("%d %d",&A,&B);
|
|
if(A>B)
|
|
{
|
|
temp=A;
|
|
A=B;
|
|
B=A;
|
|
}
|
|
for(j=A;j<=B;j++)
|
|
{
|
|
if(j<0)
|
|
hash[-j]++;
|
|
else
|
|
hash[j]++;
|
|
}
|
|
gets(s);
|
|
}
|
|
for(i=q;i>=p;i--)
|
|
{
|
|
if(i>=0&&hash[i]==0)
|
|
{
|
|
printf("%d\n",i);
|
|
break;
|
|
}
|
|
if(i<0&&hash[-i]==0)
|
|
{
|
|
printf("%d\n",i);
|
|
break;
|
|
}
|
|
}
|
|
if(i<p)
|
|
printf("Badly!\n");
|
|
}
|
|
}
|