Doubt in College Life 5 - march CC starters(rated for div3)

help
,
21

What?

22

Oh ok…trying…

23

This is correct way of input

for(int i = 0; i < n; i++){
int x;
cin >> x;
cricket[i] = x;
}
1 Like
24 
for(int x : vector_name){

}

This iterates over the vector. So if your vector had say {5,2,1}, x will take values 5 then 2 then 1 in each iteration.

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25

Well…i Tried this and it give the value I inserted…the code is:

#include<iostream>
#include<vector>
using namespace std;

int main(){
	int t;
	cin >> t;
	while(t--){
		int nfo,mcr;
		cin >> nfo >> mcr;
		vector<int> football(nfo);
		vector<int> cricket(mcr);
		for(int i : football){
			int x;
			cin >> x;
			football[i] = x;
			cout << football[i] << endl;
		}
		for(int i : cricket){
			int x;
			cin >> x;
			cricket[i] = x;
			cout << cricket[i] << endl;
		}
	}
	return 0;
}
26

Hmm…Ok…I’ll trying doing that

27

Try printing after taking whole input

for(int i : football){
			int x;
			cin >> x;
			football[i] = x;
			//cout << football[i] << endl;
		}
for(int i=0;i<nfo;i++)
cout << football[i] << endl;
2 Likes
28

I thought since I gave the size of the vector I can reassign the garbage values stored in the vector using this approach…I may be wrong though!..

29

Problem is i always remains 0. So, you are only updating vector at 0 th position.

vector <int> v(4);
        for(int i : v)
        {
            int x;
            cin>>x;
            v[i]=x;
            cout<<i<<"\n";
        }
        for(int i=0;i<4;i++)
        cout<<v[i]<<" ";

Input 1 2 3 4
Output

0
0
0
0
4 0 0 0
2 Likes
30

Hmm…This is new…Thanks a lot guys…I learnt so much from this one question!

And I did it…the code got accepted! :star_struck: :partying_face:

Thanks a lot…all of you guys who helped me …are true gems!

1 Like