delete pics to save space

history_source/ccf 基础篇/U1/1.6.4.cpp

@@ -0,0 +1,22 @@
+#include<cstdio>
+using namespace std;
+int answer(int a,int b,int x)
+{
+	if(b==1) return 1;
+	int ans=0;
+	for(int i=x;i*b<=a;i++) ans+=answer(a-i,b-1,i);
+	return ans;
+}
+int main()
+{
+	int t;
+	scanf("%d",&t);
+	int a,b,ans[t];
+	for(int i=0;i<t;i++)
+	{
+		scanf("%d%d",&a,&b);
+		ans[i]=answer(a,b,0);
+	}
+	for(int i=0;i<t;i++) printf("%d\n",ans[i]);
+	return 0;
+}