Xiaomi company programming question 2 (Welcome to criticize and correct)

2. Number of special characters
In an array with a length of N, all the other three numbers appear twice. Write the program to find any number.
For example
1 3 7 9 5 5 9 4 3 6 1 7
Output

4/5/6

/*************************************** * ******************************** // * The length is n in the array, except for three numbers, the others appear twice, write the program and find any *//******************************** **************************************** /# include <stdio. h> # define n 12int main (void) {int input [] = {,}; // int result [N]; int temp [N]; int I; // all temp arrays are initialized to 0for (I = 0; I <n; I ++) {temp [I] = 0 ;} for (I = 0; I <n; I ++) {If (temp [input [I] = 0) {temp [input [I] = 1 ;} else {temp [input [I] = 2 ;}} for (I = 0; I <n; I ++) {If (temp [I] = 1) {printf ("% d", I) ;}} return 0 ;}