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drawAsteriks () { local n=${2}; local row=${1}; local numberOfSpaces=$(( (${n}-${row}-(${row}-1))/2 )); local numberOfchars=$(( ${n} - ${numberOfSpaces#-}*2 )); local spaces=$(printf '%*s' ${numberOfSpaces} ''); local chars=$(printf '%*s' ${numberOfchars} '' | tr ' ' '+'); local result=${spaces}${chars}${spaces}; echo "${result}"; } if [[ $((${1} % 2 )) = 0 ]]; then echo "the argument is even: ${1}"; else for (( i = 1; i <= ${1}; i++ )); do drawAsteriks ${i} ${1}; done; fi echo'';
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BASH