624 solved

624.cpp

@@ -0,0 +1,70 @@
+#include <iostream>
+#include <stack>
+using namespace std;
+
+int main(void)
+{
+  int n, sz, len[20];
+  stack<int> result;
+
+  while (cin >> n) {
+    cin >> sz;
+
+    for (int i = 0; i < sz; i++) {
+      cin >> len[i];
+    }
+
+    int **dp;
+    dp = new int*[sz+1];
+    for (int i = 0; i < sz+1; i++) {
+      dp[i] = new int[n+1];
+    }
+
+    for (int i = 0; i < sz+1; i++) {
+      dp[i][0] = 0;
+    }
+
+    for (int i = 0; i < n+1; i++) {
+      dp[0][i] = 0;
+    }
+
+    for (int i = 1; i < sz+1; i++) {
+      for (int j = 1; j < n+1; j++) {
+        if (j - len[i-1] < 0) {
+          dp[i][j] = dp[i-1][j];
+        } else {
+          dp[i][j] = max(dp[i-1][j], dp[i-1][j-len[i-1]] + len[i-1]);
+        }
+      }
+    }
+
+    int sum = dp[sz][n];
+
+    int cur = sz;
+    while (cur > 0) {
+      if (dp[cur][n] == dp[cur-1][n]) {
+        cur--;
+        continue;
+      }
+
+      result.push(len[cur-1]);
+      n -= len[cur-1];
+      cur--;
+    }
+
+    while (!result.empty()) {
+      cout << result.top() << " ";
+      result.pop();
+    }
+
+    cout << "sum:" << sum << endl;
+
+    for (int i = 0; i < sz+1; i++) {
+      delete [] dp[i];
+    }
+
+    delete [] dp;
+  }
+
+  return 0;
+}