how to take space separated input in c 2b 2b

1string z,s;
2 while (true)
3    {
4      cin>>z;
5      s+=z;
6      if(cin.peek()=='\n')
7      break;
8    }
9................................
10	        OR\/
11.................................
12string s;
13getline(cin,s);

1int main() {
2int sum = 0;
3cout << "enter number" << endl;
4int i = 0;
5while (true) {
6    cin >> i;
7    sum += i;
8    //cout << i << endl;
9    if (cin.peek() == '\n') {
10        break;
11    }
12    
13}
14
15cout << "result: " << sum << endl;
16return 0;
17}
18

1int i, n, arr[100];
2
3scanf("%d", &n);
4for (i = 0; i < n; ++i)
5    scanf("%d", &arr[i]);
6