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