Update: Rename folder name to XSMOJ

XSMOJ/李老师的书架.cpp

@@ -0,0 +1,32 @@
+#include <algorithm>
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <ctime>
+#include <cmath>
+typedef long long l;
+typedef double d;
+typedef char c;
+using namespace std;
+int main(){
+	long long a,b;
+	long long c[100000],d[100000],cnt=0,sum=0;
+	cin >>a>>b;
+	for(int i=0;i<a;i++){
+		cin >>c[i];
+	}
+	sort(c,c+a);
+	for(int i=a-1;i>=0;i--){
+		d[a-i-1]=c[i];
+	}
+	for(int i=0;i<a;i++){
+		sum+=d[i];
+		cnt++;
+		if(sum>b){
+			break;
+		}
+	}
+	cout <<cnt;
+	return 0;
+}