delete pics to save space

history_source/信息学奥赛一本通/2.9.3.7.cpp

@@ -0,0 +1,19 @@
+#include<cstdio>
+int f(int n,int k,int minn)
+{
+	if(k==1) return 1;
+	int ans=0;
+	for(int i=minn;i*k<=n;i++) ans+=f(n-i,k-1,i);
+	return ans;
+}
+int main()
+{
+	int n,k,x;
+	scanf("%d",&x);
+	while(x--)
+	{
+		scanf("%d%d",&n,&k);
+		printf("%d\n",f(n,k,0));
+	}
+	return 0;
+}