Update README.md

README.md

@@ -1,2 +1,40 @@
-# 001
-
+~~~c
+#include<stdio.h>
+#define max(x,y)((x)>(y)?(x):(y))
+#define MAXN 20
+int n = 5,W = 10;
+int w[MAXN] = {0,2,4,5,6};
+int v[MAXN] = {0,2,2,3,5};
+int maxv = 0;
+int knap(int i,int r){
+	if(i==0||r==0){
+		return 0;
+	}
+	if(r<w[i]){
+		knap(i-1,r);
+	} else{
+		return max(knap(i-1,r),knap(i-1,r-w[i])+v[i]);
+	}
+}
+int main(){
+	maxv = knap(n,W);
+	printf("求解的最优结果(最优方案)\n"); 
+	printf("选取的物品：");
+	int x[MAXN] = {0};
+	int i=n,r = W;
+	while(i>=0&&r>0){
+		if(i>0&&knap(i,r)!=knap(i-1,r)){
+			x[i]=1;
+			r = r-w[i];
+		}
+		i--;
+	}
+	for(i=1;i<=n;i++){
+		if(x[i]==1){
+			printf("%d ",i);
+		}
+	}
+	printf("\n");
+	printf("总价值=%d",maxv);
+}
+~~~