pat乙级-1027 打印沙漏(20)

	

using namespace std;

int main(int argc, const char * argv[]) {
    int n;
    char ch;
    cin>>n>>ch;
    int sum = 0;
    int i = 1,j = 0;
    while(sum<=n-1)
    {
        i += 2;
        j++;
        sum += i*2;
    }
    sum = sum-i*2;
    int temp = i;
    int t = j;
    for( j = j-1;j>=0; --j)
    {
        for( int k = 1; k<t-j; ++k)
            cout<<" ";
        for( i = temp-2; i >= 1; i-- )
        {
            cout<<ch;
        }
       temp = temp - 2;
        cout<<endl;
    }
    
    for( ; j < t-2; ++j)
    {
        for(int k = 1;k<t-j-2;++k)
        {
            cout<<" ";
        }
        for( i = temp+2; i >= 1; i-- )
        {
            cout<<ch;
        }
        temp = temp + 2;
        cout<<endl;
    }
    cout<<n-sum-1<<endl;
    return 0;
}