Update: Rename folder name to XSMOJ

XSMOJ/小码君计算向量点积.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <ctime>
+#include <cmath>
+using namespace std;
+int main(){
+	int a,b[3][10000],sum=0;
+	cin >>a;
+	for(int i=0;i<2;i++){
+		for(int j=0;j<a;j++){
+			cin >>b[i][j]; 
+		}
+	}
+	for(int i=0;i<a;i++){
+		sum+=b[0][i]*b[1][i];
+	}
+	cout <<sum;
+	return 0;
+}