#include <stdio.h>#include <stdlib.h>void increase(int num[],int n);void decrease(int num[],int n);int main(){ int a,n; int *num; int i; printf("1:increase,2:decrease\n"); scanf("%d",&a); printf("how many numbers\n"); scanf("%d",&n); num=(int *)malloc(n*sizeof(int)); printf("now type in the numbers\n"); for(i=0;i<n;i++) scanf("%d",&num[i]); switch(a) { case 1: { increase(num ,n); break; } case 2: { decrease(num ,n); break; } } return 0;}void increase(int num[],int n){ int i,j; for(i=0;i<n-1;i++) for(j=0;j<n-i-1;j++) if(num[j]>num[j+1]) { int t; t=num[j]; num[j]=num[j+1]; num[j+1]=num[j]; } for(i=0;i<n;i++) printf("%d\t",num[i]); }没有错误啊？？为啥build failed呢？？？？哭了😭各位大佬帮我看看。谢谢你们！！！！