c++多行输入（带空格）

#include <string>
#include <stack>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <math.h>
using namespace std;

int main()
{
int T;
cin >> T;
int N;
cin >> N;
while (T--) {
vector<string> name(N);
vector<vector<int>> m(N);
cin.ignore();
for (int i = 0; i < N; i++)
{
string temp;
getline(cin, temp);
int j = 0;
while (temp[j] != ' ') j++;
name[i] = temp.substr(0, j);
//cout << name[i] << endl;
while (j < temp.size()) {
if(temp[j]!=' ')
m[i].push_back(temp[j] - '0');
j++;
}
}
return 0;
}

}