Problem-1

#include<stdio.h>
int max_num(int a,int b)
{
    int max=0;
    if(a>b)
        max=a;
    else
        max=b;
    return max;
}
int main()
{
    int a,b;
    scanf("%d %d", &a,&b);
    printf("%d is maximum", max_num(a,b));
    return 0;
}