
Input
Output
Sample Input
1 5 7 3 8 8 1 0 2 7 4 4 4 5 2 6 5
Sample Output
30
题目大意:中文题目。
解题思路:先记录最后一行的DP值,然后从最后一行开始往上层层递进。
#include<stdio.h>
#include<string.h>
#include<algorithm>
using namespace std;
int a[105][105], d[105][105];
int main() {
int n;
scanf("%d\n", &n);
while (n--) {
memset(a, 0, sizeof(a));
memset(d, 0, sizeof(d));
int m;
scanf("%d\n", &m);
int t = m;
int cnt = 1;
while (t--) {
for (int i = 1; i <= cnt; i++) {
scanf("%d", &a[cnt][i]);
}
cnt++;
}
for (int i = 1; i <= m; i++) {
d[m][i] = a[m][i];
}
for (int i = m - 1; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
d[i][j] = a[i][j] + max(d[i + 1][j], d[i + 1][j + 1]);
}
}
printf("%d\n", d[1][1]);
}
return 0;
}原文地址:http://blog.csdn.net/llx523113241/article/details/42685857