1. #include<iostream>
2. using namespace std;
3. int main()
4. {int i,j,k;
5 .for(i=1;i<=10;i++)
6 .{for(k=1;k<=11-i;k++)
7 .cout<<" ";
8. for(j=1;j<=2*i-1;j++)
9 .cout<<"M";
10.cout<<endl;
11.}
12.return 0;
13.}
14.#include<iostream>
15.using namespace std;
16.int main()
17.{int i,j,k,l,m,n;
18.for(i=1;i<=10;i++)
19.{for(k=1;k<=11-i;k++)
20.cout<<" ";
21.for(j=1;j<=2*i-1;j++)
22.cout<<"M";
23.cout<<endl;
24.}
25.for(l=1;l<=10;l++)
26.{for(m=1;m<=l;m++)
27.cout<<" ";
28.for(n=1;n<=21-2*l;n++)
29.cout<<"M";
30.cout<<endl;
31.}
32.return 0;
33.}
34.#include<iostream>
35.using namespace std;
36.int main()
37.{for(int i=1;i<=10;i++)
38.{for(int j=1; j<=i-1;j++)
39.cout<<" ";
40.for(char ch='A';ch<='A'+20-2*i;++ch)
41.cout<<ch;
42.cout<<endl;
43.}
44.return 0;
45.}
46.#include<iostream>
47.using namespace std;
48.int main()
49.{for(int i=1;i<=10;i++)
50.{for(int j=1;j<=10-i;j++)
51.cout<<" ";
52.for(char ch='A';ch<='A'+2*i-2;ch++)
53.cout<<ch;
54.cout<<endl;
55.}
56.for(int l=1;l<=10;l++)
57.{for(int m=1;m<=l-1;m++)
58.cout<<" ";
59.for(char ch='A';ch<=20-2*l+'A';ch++)
60.cout<<ch;
61.cout<<endl;
62.}
63.return 0;
64.}