题解 | #杨辉三角的变形#
杨辉三角的变形
https://www.nowcoder.com/practice/8ef655edf42d4e08b44be4d777edbf43
#include <stdio.h> int wan(long int n) { if(n==1||n==2) { return -1; }else if(n%2==1) { return 2; }else if(n%4==0) { return 3; }else{ return 4; } } int main() { long int n; scanf("%d",&n); int result=wan(n); printf("%d\n",result); return 0; }