这题样例是不是有点水啊？

#include <bits/stdc++.h>
using namespace std;

int main()
{
int n,m;
cin >> n >> m;
char a[110][110];
for(int i = 1;i <= n;i++)
{
for(int j = 1;j <= m;j++)
{
cin >> a[i][j];
if(a[i][j] == '*')
cout << a[i][j];
if(a[i][j] == '?')
cout << 0;
}
cout << endl;
}

return 0;

}