题解 | 序列中整数去重

#include <stdio.h>
int main() {
    int n,i,j;
    scanf("%d",&n);
    int arr[n],b[5005] = {0};
    for(i = 0; i < n; i++)
    scanf("%d",&arr[i]);
    for(i = 0; i < n;i++){
        for(int j = i; j < n; j++){
            b[arr[i]]++;
            if(b[arr[i]] == 1)
                printf("%d ",arr[i]);
            if(arr[i] == arr[j])
                b[arr[i]]++;
        }
    }
    return 0;
}

应该没有更短了的吧，嘻嘻