OJ-Problems-Source/HDOJ/1176_autoAC.cpp
2016-08-13 10:51:15 +08:00

31 lines
650 B
C++

#include<stdio.h>
#include<string.h>
int a[100008][13];
int max(int a,int b,int c)
{
if(a<b)
a=b;
if(a<c)
a=c;
return a;
}
int main()
{
int i,j,n,x,t,fuck;
while(scanf("%d",&n)==1&&n)
{
memset(a,0,sizeof(a));fuck=0;
for(i=1;i<=n;i++)
{
scanf("%d%d",&x,&t);
if(t>fuck) fuck=t;
a[t][x+1]++;
}
for(i=fuck-1;i>0;i--)
for(j=1;j<=11;j++)
a[i][j]+=max(a[i+1][j],a[i+1][j-1],a[i+1][j+1]);
printf("%d\n",max(a[1][5],a[1][6],a[1][7]));
}
return 0;
}