HDOJ  2084   数塔

题目： http://acm.hdu.edu.cn/showproblem.php?pid=2084

#include<stdio.h>
int a[102][102];
int main()
{
    intn,i,j,s=0;
   while(scanf("%d",&n)!=EOF)
    {
       for(i=1;i<=n;i++)
           for(j=1;j<=i;j++)
               scanf("%d",&a[i][j]);
       for(i=n-1;i>=1;i--)
       {
           for(j=1;j<=i;j++)
           {
               s=a[i+1][j];
               if(a[i+1][j+1]>a[i+1][j])
                   s=a[i+1][j+1];
               a[i][j]+=s;
           }
       }
       printf("%d\n",a[1][1]);
    }
    return0;
}