'commit'

TangDou/AcWing/BeiBao/11_YiWei_1.cpp

@@ -0,0 +1,31 @@
+#include <bits/stdc++.h>
+using namespace std;
+const int N = 1010;
+const int MOD = 1e9 + 7;
+
+int f[N], g[N];
+
+int main() {
+    int n, m;
+    scanf("%d%d", &n, &m);
+
+    f[0] = 0, g[0] = 1;
+
+    for (int i = 1; i <= m; i++) f[i] = 0, g[i] = 1;
+
+    for (int i = 1; i <= n; i++) {
+        int v, w;
+        scanf("%d%d", &v, &w);
+        for (int j = m; j >= v; j--) {
+            int val = f[j - v] + w;
+            if (val > f[j]) {
+                f[j] = val;
+                g[j] = g[j - v];
+            } else if (val == f[j])
+                g[j] = (g[j] + g[j - v]) % MOD;
+        }
+    }
+
+    printf("%d", g[m]);
+    return 0;
+}