题解 | #牛牛的digit#
牛牛的digit
https://www.nowcoder.com/practice/21b49f1f495f4280b8a96c415deaa3c4
#include <stdio.h> int digit(int a,int b) { if(b == 1) return a % 10; else return digit(a / 10, b - 1) * 10 + a % 10; } int main() { int a, b; scanf("%d %d", &a, &b); printf("%d",digit(a,b)); return 0; }