时间限制: 2s
内存限制: 192MB 提交: 66 解决: 29
题目描述
数字三角形必须经过某一个点,使之走的路程和最大
输入格式
第1行n,表示n行 < =25
第2到n+1行为每个的权值
第n+2行为两个数x,y表示必须经过的点
提示
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