题目:https://www.patest.cn/contests/pat-b-practise
欢迎交流
#include<stdio.h>
int main()
{
int n,a,b,c;
scanf("%d",&n);
a = n / 100;//百位
b = n % 100 / 10;//十位
c = n % 10;//个位
for (int i = 0; i < a; i++)
printf("B");
for (int i = 0; i < b; i++)
printf("S");
for (int i = 1; i <= c; i++)
printf("%d", i);
return 0;
}