| Time Limit: 1000MS | Memory Limit: 10000K | |
| Total Submissions: 16503 | Accepted: 8514 |
Description
Input
Output
Sample Input
1 1 1 2 2 2 10 4 6 50 50 50 -1 7 18 -1 -1 -1
Sample Output
w(1, 1, 1) = 2 w(2, 2, 2) = 4 w(10, 4, 6) = 523 w(50, 50, 50) = 1048576 w(-1, 7, 18) = 1
巨水。。
一开始wa了一组数据 (0,21,21)
#include <algorithm>
#include <iostream>
#include <cstring>
#include <cstdlib>
#include <string>
#include <cctype>
#include <vector>
#include <cstdio>
#include <cmath>
#include <deque>
#include <stack>
#include <map>
#include <set>
#define ll long long
#define maxn 116
#define pp pair<int,int>
#define INF 0x3f3f3f3f
#define max(x,y) ( ((x) > (y)) ? (x) : (y) )
#define min(x,y) ( ((x) > (y)) ? (y) : (x) )
using namespace std;
int n,m,dp[22][22][22];
int dfs(int x,int y,int z)
{
if(x<=0||y<=0||z<=0)
return 1;
if(x>20||y>20||z>20)
return dfs(20,20,20);
if(dp[x][y][z]!=INF)
return dp[x][y][z];
dp[x][y][z]=0;
if(x<y&&y<z)
dp[x][y][z]+=(dfs(x,y,z-1)+dfs(x,y-1,z-1)-dfs(x,y-1,z));
else dp[x][y][z]+=(dfs(x-1,y,z)+dfs(x-1,y-1,z)+dfs(x-1,y,z-1)-dfs(x-1,y-1,z-1));
return dp[x][y][z];
}
int main()
{
int a,b,c;
while(scanf("%d%d%d",&a,&b,&c))
{
if(a==-1&&b==-1&&c==-1)break;
memset(dp,INF,sizeof(dp));
printf("w(%d, %d, %d) = %d\n",a,b,c,dfs(a,b,c));
}
return 0;
}POJ 1579-Function Run Fun(记忆化搜索)
原文地址:http://blog.csdn.net/qq_16255321/article/details/41124249