我的删除有问题 [英] Something is wrong with my deletion

问题描述

因此，该程序假设要删除一个具有重复项的元素，到目前为止，它仅删除了两对。我需要帮助。

So this program is suppose to delete an element which has a duplicate and so far it only deleted only two pairs. I need help.

#include <stdio.h>

int main(void)
{
    int arr[11] = { 1, 1, 2, 3, 4, 5, 4, 7, 8, 9, 8 };
    int col[11];
    int i;
    int j;
    int k;
    int ctr = 0;

    for (i = 0; i < 11; i++)
    {
        for (j = i + 1; j < 10; j++)
        {
            if (arr[i] == arr[j])
            {
                i++;
            }
        }
        printf("%d", arr[i]);
    }

    getch();
    return 0;
}

推荐答案

像这样的修复

#include <stdio.h>

int main(void){
    int arr[] = { 1, 1, 2, 3, 4, 5, 4, 7, 8, 9, 8 };
    int col[sizeof arr/sizeof *arr] = { 0 };
    int len = sizeof arr/sizeof *arr;//11
    int i, j;

    for (i = 0; i < len-1; i++){
        for (j = i + 1; j < len; j++){
            if (arr[i] == arr[j]){
                col[j] = 1;
            }
        }
        if(col[i] == 0)
            printf("%d ", arr[i]);
    }
    puts("");
    return 0;
}

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