题解 | #提取不重复的整数#

#include <stdio.h>

int main(void) { int x = 0; int flag[10] = {0}; int buf[10]; int cnt = 0; int temp = 0; int i = 0; if(scanf("%d", &x) != EOF) { while(x) { temp = x%10; if(flag[temp] == 0) { flag[temp] = 1; buf[cnt] = temp; cnt++; } x /= 10; } for(i = 0 ; i < cnt; i++) { //if(flag[i]) { printf("%d",buf[i]); } } } return 0; }