C语言作业，实在是看不懂，望大神帮助

Question

Input 3 numbers from keyboard, find the max among the 3 numbers and indicate which one is the max number. If there is more than one max number, show all of them. 输入的三个数中有可能有1个，2个或3个最大值，需要指示是哪几个数是最大值。

Answer 1

#include <stdio.h>

int main()
{
    int a, b, c, m;
    printf("Please enter 3 integers: ");
    scanf("%d%d%d", &a, &b, &c);
    
    m = a < b ? b : a;
    m = m < c ? c : m;
    
    printf("The max number is: \n");
    if (a == m) {
        printf("The first number: %d\n", a);
    }
    if (b == m) {
        printf("The second number: %d\n", b);
    }
    if (c == m) {
        printf("The third number: %d\n", c);
    }
}

// Output
Please enter 3 integers: 7 8 9                                                                                                                                                     
The max number is:                                                                                                                                                                 
The third number: 9 

Please enter 3 integers: 3 3 3                                                                                                                                                     
The max number is:                                                                                                                                                                 
The first number: 3                                                                                                                                                                
The second number: 3                                                                                                                                                               
The third number: 3