和python差不多吧

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;
	if(n==0){
		cout<<"Error";
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			//cout<<i<<"x"<<j<<"= "<<i*j<<" ";
			printf("%dx%d=%2d ",i,j,i*j);
		}
		cout<<endl;
	}
	return 0;
}