'commit'

TangDou/AcWing/BeiBao/2_dfs_void.cpp

@@ -0,0 +1,24 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+const int N = 1010;
+int n, m;
+int w[N], v[N];
+int res;
+
+void dfs(int u, int r, int s) {
+    if (u == n + 1) {
+        res = max(res, s);
+        return;
+    }
+    if (v[u] <= r) dfs(u + 1, r - v[u], s + w[u]);
+    dfs(u + 1, r, s);
+}
+
+int main() {
+    cin >> n >> m;
+    for (int i = 1; i <= n; i++) cin >> v[i] >> w[i];
+    dfs(1, m, 0);
+    printf("%d\n", res);
+    return 0;
+}