#includeint Unite(int a,int b){ int c = 0; c = a%10;//c的个位(取a的个位) c += (b%10)*10;//c的十位(取b的个位) c += (a/10)*100;//c的百位(取a的十位) c += (b/10)*1000;//c的千位(取b的十位)return c;}void main(){ int a,b; printf("请输入a:"); scanf("%d",&a);printf("\n请输入b:"); scanf("%d",&b); int c = Unite(a,b);