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  1. extern int printf(char*,...),getchar(); int main() { printf("Enter a letter between A and Z :");
  2. int i,j,letter=getchar(); for( i='A'; i<=letter; ++i ) { printf("\n"); for( j=0; j<(letter-i); ++j )
  3. printf(" "); for( j='A'; j<i; ++j ) printf("%c",j); while( j>='A' ) printf("%c",j--); } }
  4.  
Success #stdin #stdout 0s 2012KB
comments (?)
stdin 
F
stdout 
Enter a letter between A and Z :
     A
    ABA
   ABCBA
  ABCDCBA
 ABCDEDCBA
ABCDEFEDCBA
https://ideone.com/O4ZoNl
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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