Answer:
for(currentRow=1; currentRow<=numRows; currentRow++) {
for(currentColumn=0; currentColumn<numColumns; currentColumn++) {
printf("%d%c ", currentRow, 'A'+currentColumn);
}
}
Step-by-step explanation:
By treating the column as a character, you can create the correct letter by adding 'A' to the column number (starting at 0). That way, you don't need the currentColumnLetter.
Of course this breaks if you have more columns than there are alphabet letters.