Update: Rename folder name to XSMOJ

XSMOJ/买书.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <ctime>
+using namespace std;
+int main(){
+	int a,b[10000],c,d[10000];
+	cin >>a;
+	int sum=0;
+	for(int i=0;i<a;i++){
+		cin >>b[i];
+	} 
+	cin >>c;
+	for(int i=0;i<c;i++){
+		cin >>d[i];
+	}
+	for(int i=0;i<c;i++){
+		for(int j=0;j<d[i];j++){
+			sum+=b[j];
+		}
+		cout <<sum<<" ";
+		sum=0;
+	}
+	return 0;
+}