【Code】字符串去除出现最少次数的字符

字符串去除出现最少次数的字符

#include<stdio.h>
#include<string.h>
int main()
{
    char input[20];
    int letters[26] = {0};
    int min = 1;
    while (scanf("%s",input) != EOF) {
        unsigned long uiLen = strlen(input);
        for (int i = 0; i < uiLen; i++) {
            letters[input[i] - 'a']++;
            if (letters[input[i] - 'a'] < min) {
                min = letters[input[i] - 'a'];
            }
        }
        for (int i = 0; i <uiLen; i++) {
            if (letters[input[i] - 'a'] != min && letters[input[i] - 'a'] != 0) {
                printf("%c", input[i]);
            }
        }
        printf("\n");
    }
    return 0;
}