joj 1270 Triangle Wave 找点自信题

#include<iostream>
using namespace std;  
int main()  
{  
	int A, F;
	cin>>A>>F;
	while(F--){
		int row = 1, i;
		for(i = 1; i <= A; i++){
			int temp = row;
			while(temp--)
				cout<<i;
			cout<<endl;
			row++;
		}
		row = A - 1;
		for(i = A - 1; i >= 1; i--){
			int temp = row;
			while(temp--)
				cout<<i;
			cout<<endl;
			row--;
		}
		if(F >= 1)
			cout<<endl;
	}
    return 0;  
}