这个怎么做？是不是有什么限制

Question

Answer 1

C++

#include <iostream>
using namespace std;
int main()
{
    unsigned int a,b;
    double c;
    cin >> a >> b;
    c = a*b;
    cout << c << endl;
    return 0;
}

C代码

#include <stdio.h>

int main()
{
    unsigned int a,b;
    double c;
    scanf("%u,%u",&a,&b);
    c = a*b;
    printf("%g\n",c);
    return 0;
}