53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
#include<stdio.h>
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#include<string.h>
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char hash[12000005];
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int main()
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{
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int N,i,A,B,j,p,q,temp;
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char s[100];
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while(scanf("%d",&N)!=EOF)
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{
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memset(hash,0,sizeof(hash));
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scanf("%d %d",&p,&q);
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if(p>q)
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{
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temp=p;
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p=q;
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q=temp;
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}
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for(i=0;i<N;i++)
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{
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scanf("%d %d",&A,&B);
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if(A>B)
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{
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temp=A;
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A=B;
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B=A;
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}
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for(j=A;j<=B;j++)
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{
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if(j<0)
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hash[-j]++;
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else
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hash[j]++;
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}
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gets(s);
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}
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for(i=q;i>=p;i--)
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{
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if(i>=0&&hash[i]==0)
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{
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printf("%d\n",i);
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break;
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}
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if(i<0&&hash[-i]==0)
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{
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printf("%d\n",i);
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break;
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}
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}
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if(i<p)
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printf("Badly!\n");
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}
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}
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