#include
int main()
{char c,i,j;
scanf("%c",&c);
for(i='A';i<=c;i++)
{for(j=0;jprintf(" ");
for(j='A';j<=i;j++)
printf("%c",j);
for(j=i-1;j>='A';j--)
printf("%c",j);
printf("\n");
}
return 0;
}
#include
#include
void main(){
char i,j,ch;
scanf("%c",&ch);
for(i='A';i<=ch;i++)
{
printf("\n");
for(j=i;jprintf(" ");
for(j='A'-i;j<=i-'A';j++)
printf("%c",i-abs(j));
}
}
运行示例: