Bash 解法, 执行用时: 3ms, 内存消耗: 412KB, 提交时间: 2022-01-06

while read line
do
    count=0
    for (( i=0;i<${#line};i++ ))
    do
        if [[ ${line:$i:1} =~ [0-9] ]]
        then
            ((count++))
        fi
    done
    if [ $count -eq 1 ]
    then
        echo $line
    fi
done < nowcoder.txt

Bash 解法, 执行用时: 3ms, 内存消耗: 412KB, 提交时间: 2021-11-25

while read line
do
    count=0
    for ((i=0;i<${#line};i++))
        do
            [[ ${line:i:1} =~ [0-9] ]] && ((count++))
        done
    if [ $count -eq 1 ];then 
        printf "$line\n"
    fi
done < nowcoder.txt

Bash 解法, 执行用时: 3ms, 内存消耗: 416KB, 提交时间: 2022-01-15

 while read line
 do
     let count=0
     for (( i = 0; i < ${#line}; i++))
         do
             if [[ ${line:i:1} =~ [0-9] ]]; then 
               count=$(($count+1))
             fi
         done
     if [ $count -eq 1 ];then
         printf "$line\n"
     fi
 done < nowcoder.txt

Bash 解法, 执行用时: 3ms, 内存消耗: 420KB, 提交时间: 2022-02-26

while read line;do
    count=0
    for ((i=0;i<=${#line};i++));do
        if [[ ${line:$i:1} =~ [0-9] ]];then
            ((count++))
        fi
    done
    if [[ $count -eq 1 ]];then
        echo $line
    fi
done<nowcoder.txt

Bash 解法, 执行用时: 3ms, 内存消耗: 420KB, 提交时间: 2021-12-20

while read line
do
    let count=0;
    for(( i = 0; i < ${#line}; i++))
    do
             [[ ${line:i:1} =~ [0-9] ]] && ((count++))
    done
    
        if [[ $count == 1 ]]
        then
            printf "$line \n"
        fi

done < nowcoder.txt