编写一个函数fun,其功能是:将两个两位的正整数a、b合并形成一个整数放在c中答案

#include "stdio.h"
int fun(int a,int b)
{
int s1,g1,s2,g2,c;
g1=a%10;
g2=b%10;
s1=a/10;
s2=b/10;
c=g2*1000+s2*100+g1*10+s1;
return c;
}

void main()
{int a,b,c;
scanf("%d%d",&a,&b);
c=fun(a,b);
printf("%d",c);
}

void fun(int a,int b,char * c)
{
char numa[10],numb[10];
itoa(a,numa,10);
itoa(b,numb,10);
strcat(numa,numb);
strcpy(c,numa);
}
用库函数吧 这样会比较有技术含量 呵呵

int fun(int a,int b)
{int c=0;
int a10,a1,b10,b1;
a10=a/10;
a1=a%10;
b10 = b/10;
b1 = b%1;
c = a10+ a1*10+b10*100+b1*1000;
return c;
}