From b439684ac9e63b528ff971e2599f51a8dddc1395 Mon Sep 17 00:00:00 2001
From: Kirito <1362050620@qq.com>
Date: Tue, 13 Sep 2016 16:00:52 +0800
Subject: [PATCH] Create 1742_kedebug.cpp

From http://www.cnblogs.com/kedebug/archive/2013/02/10/2909893.html
---
 POJ/1742_kedebug.cpp | 63 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 POJ/1742_kedebug.cpp

diff --git a/POJ/1742_kedebug.cpp b/POJ/1742_kedebug.cpp
new file mode 100644
index 0000000..2f2a59b
--- /dev/null
+++ b/POJ/1742_kedebug.cpp
@@ -0,0 +1,63 @@
+#include <iostream>
+#include <algorithm>
+using namespace std;
+
+const int MAXN = 110;
+const int MAXD = 100010;
+
+int A[MAXN], C[MAXN];
+bool dp[MAXD], deq[MAXD];
+
+int main()
+{
+    int n, m;
+    while (scanf("%d %d", &n, &m) && n && m >= 0)
+    {
+        for (int i = 0; i < n; ++i)
+            scanf("%d", &A[i]);
+        for (int i = 0; i < n; ++i)
+            scanf("%d", &C[i]);
+        for (int v = 0; v <= m; ++v)
+            dp[v] = false;
+
+        int ret = 0;
+        dp[0] = true;
+
+        for (int i = 0; i < n; ++i)
+        {
+            if (C[i] == 1)
+            {
+                for (int v = m; v >= A[i]; --v)
+                    if (!dp[v] && dp[v - A[i]])
+                        dp[v] = true, ++ret;
+                continue;
+            }
+
+            if (A[i] * C[i] >= m)
+            {
+                for (int v = A[i]; v <= m; ++v)
+                    if (dp[v - A[i]] && !dp[v])
+                        dp[v] = true, ++ret;
+                continue;
+            }
+
+            for (int rem = 0; rem < A[i]; ++rem)
+            {
+                int s = 0, e = -1, sum = 0;
+                for (int v = rem; v <= m; v += A[i])
+                {
+                    if (s + C[i] == e)
+                        sum -= deq[s++];
+
+                    deq[++e] = dp[v];
+                    sum += dp[v];
+
+                    if (!dp[v] && sum)
+                        dp[v] = true, ++ret;
+                }
+            }
+        }
+        printf("%d\n", ret);
+    }
+    return 0;
+}