> C语言的:
> 
> #include<stdio.h>
> #include<stdlib.h>
> 
> main()
> {
> 	int n,i,j;
> 	int **d;
> 	scanf("%d",&n);
> 	d=malloc(n*sizeof(int *));
> 	for(i=0;i<n;i++)
> 	{
> 		d[i]=malloc(i*sizeof(int));
> 		for(j=0;j<=i;j++)
> 			scanf("%d",&d[i][j]);
> 	}
> 	for(i=n-2;i>=0;i--)
> 		for(j=0;j<=i;j++)
> 			d[i][j] += d[i+1][j]>d[i+1][j+1]?d[i+1][j]:d[i+1][j+1];
> 	printf("%d\n",**d);
> }