编辑代码

#include <stdio.h>
int main () {
   int arr[10] = { 12, 5, 4, 7, 11, 8, 6, 6, 20, 10 };
 int i = 0;
 int n = sizeof(arr) / sizeof(arr[0]);
 int j = 0;
 for (i = 0; i <n-1 ; i++) {
  for (j = 0; j < n - i - 1; j++) {
   if (arr[j]>arr[j+1]) {
    int tmp = arr[j];
    arr[j] = arr[j+1];
    arr[j+1] = tmp;
   }
  }
 }
 printf("%d", arr[9]); 
	return 0;
}