从后往前遍历
#include <stdio.h>
int main(void)
{
int n, i, count =0;
int arr[50];
int delet;
scanf("%d", &n);
for(i = 0; i < n; i++)
scanf("%d", &arr[i]);
scanf("%d", &delet);
for(i = n - 1; i >= 0; i--)
{
if(arr[i] == delet)
{
for(int m = i + 1; m < n; m++)
arr[m - 1] = arr[m];
count++;
}
}
for(i = 0; i < n - count; i++)
printf("%d ", arr[i]);
return 0;
}

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