#include <stdio.h>
int main() {
int n, target;
int nums[n];
for (int i
= 0; i
< n
; i
++) scanf("%d", &nums
[i
]);
int first = -1, last = -1;
for (int i = 0; i < n; i++) {
if (nums[i] == target) {
if (first == -1) first = i;
last = i;
}
}
return 0;
}
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