Lỗi C2857 #include statement specified sửa như thế nào?

[Phuc_Khiem_Ton (Phúc Khiêm Tốn)]

// ConsoleApplication1.cpp : This file contains the 'main' function. Program execution begins and ends there.
#include <iostream>
#include<cmath>
using namespace std;
void main()
{
	float X, S;
	int n;
	printf("nhap x la ");
	scanf_s("%f", &X);
	printf("nhap n la ");
	scanf_s("%d", &n);
	S = pow(X*X+1, n);
	printf("tong gia tri cua S %.2f", S);
	system("pause");


}

lỗi C2857 #include statement specified with the/ Yccpp command line option was not found in the source file
looix này fix làm sao ạ

[rogp10]

scanf đâu phải bên <iostream> đâu.