关于#C语言#的问题,如何解决?

//功能:返回2个整数中的最大数
int two(int a,int b):

int two(int a,int b)
{
    if(a>b)
      return a;
    return b;
}


#include <stdio.h>

int two(int a, int b);

int main(void) {

    int a, b;

    puts("Enter two integer number: ");
    scanf("%d %d", &a, &b);
    printf("The max number is %d\n", two(a, b));

    return 0;
}

int two(int a, int b) {

    int max;

    max = (a < b) ? b : a;
    
    return max;
}