how to take input in 2d vector in c++
myVector[
Vector[0, 4, 2, 5],
Vector[1, 4, 2]
];
/*When you call for myVector[1].size() it would return 3 and [0] would return 4.
For the amount of rows (int vectors) in the 2d vector, you can just use myVector.size()
You can run this to see it in actions*/
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4
10
// Initializing 2D vector "vect" with
// values
vector<vector<int> > vect{ { 1, 2, 3 },
{ 4, 5, 6 },
{ 7, 8, 9 } };
Thank you!
10
4
(10 Votes)
0
4
9
vector<vector<int> > d;
int val;
for(int i = 0; i < in; i++){
vector<int> temp;
for(int j = 0; j < in; j++){
cin >> val;
temp.push_back(val);
}
d.push_back(temp);
temp.clear();
}
From SpyrosD3v25
Thank you!
9
4
(9 Votes)
0
3.88
8
std::vector<vector<int>> d;
//std::vector<int> d;
cout<<"Enter the N number of ship and port:"<<endl;
cin>>in;
cout<<"\Enter preference etc..:\n";
for(i=0; i<in; i++){
cout<<"ship"<<i+1<<":"<<' ';
for(j=0; j<in; j++){
cin>>temp;
d[i].push_back(temp);
}
}
Thank you!
8
3.88
(8 Votes)
0
4
5
std::vector<vector<int>> d;
//std::vector<int> d;
cout<<"Enter the N number of ship and port:"<<endl;
cin>>in;
cout<<"\Enter preference etc..:\n";
for(i=0; i<in; i++){
cout<<"ship"<<i+1<<":"<<' ';
for(j=0; j<in; j++){
cin>>temp;
d.push_back(temp);// I don't know how to push_back here!!
}
}
Thank you!
5
4
(5 Votes)
0
4
8
vector<vector<int> > d;
int val;
for(int i = 0; i < in; i++){
vector<int> temp;
for(int j = 0; j < in; j++){
cin >> val;
temp.push_back(val);
}
d.push_back(temp);
temp.clear();
}
Thank you!
8
4
(8 Votes)
0
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