题解 | #小乐乐改数字#
小乐乐改数字
https://www.nowcoder.com/practice/fcd30aac9c4f4028b23919a0c649824d
#include <stdio.h>
int main() {
int num,res = 0,weight = 1;
scanf("%d",&num);
while (num != 0) {
int index = num % 10;
if(index % 2)
res += weight * 1;
weight *= 10;
num /= 10;
}
printf("%d",res);
return 0;
}
不知道接下来该怎么优化
