'commit'

TangDou/LanQiaoBei/LanQiao12ShengSai/BC4_ErWei_DP_2.cpp

@@ -0,0 +1,40 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+const int N = 1010;
+
+int n, m;
+int w[N];  //占用的时间
+int v[N];  //销售的价格
+int f[N][N];//最优解
+string s[N][N];//最优解对应的路径
+
+int main() {
+    //物品个数n
+    cin >> n >> m;
+    //读入重量和价值
+    for (int i = 1; i <= n; i++) cin >> w[i] >> v[i];
+
+    for (int i = 1; i <= n; i++)
+        for (int j = 1; j <= m; j++) {
+            int x = f[i - 1][j - w[i]] + v[i];
+            int y = f[i - 1][j];
+            if (j >= w[i]) {
+                if (x > y) {
+                    f[i][j] = x;
+                    s[i][j] = s[i - 1][j - w[i]] + " " + char(i + '0');
+                } else {
+                    f[i][j] = y;
+                    s[i][j] = s[i - 1][j];
+                }
+            } else {
+                f[i][j] = y;
+                s[i][j] = s[i - 1][j];
+            }
+        }
+
+    cout << f[n][m] << endl;
+    cout << s[n][m] << endl;
+    return 0;
+}