添加了许多代码文件

「NOIP 2002 普及组」级数求和.cpp

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+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <ctime>
+#include <cmath>
+using namespace std;
+int main(){
+	double a,sum=0;
+	int b=0;
+	scanf("%lf",&a);
+	while(sum<=a){
+		b++;
+		sum+=1*1.0/b;
+	}
+	printf("%d",b);
+	return 0;
+}