int reverse(int n){ int i; int s; i = 0; s = 0; while(n > 0){ s *= 10; s = n%10; n = n/10; } return s;}
n就是输入的数
#includevoid fun(int a) { while ( a ) { printf("%d ",a%10); a/=10; } printf("\n"); }void main() { int a; scanf("%d",&a); fun(a); }