读入一行由空格隔开的数字

#include <stdio.h>
#include <iostream>
#include <sstream>
using namespace std;
int main()
{
int a[1005], cnt;
string s;
while(getline(cin, s))
{
cnt = 0;
stringstream ss(s);
int x;
while(ss >> x)
{
a[cnt++] = x;
}
for(int i = 0; i < cnt; i++)
{
printf("%d ", a[i]);
}
puts("");
}
return 0;
}