How to load data from a file

Following the ideea of Manfred R. Bihy, I wrote some code that find the word you need after a specific number. For example, if you have:
4
alfa
beta
gama
landa
....etc...
will output "landa".You can continue with the same logic, and find the other words depending of the number.

include iostream
include fstream
include stdlib.h
include ctype.h

char str[10];
	int x;
	char str2[10];

ifstream fi("test2.txt");
if(!fi.is_open())
{cout<<"Imposible to open the file";
exit(1);}
else{
	fi>>str;
	if(isdigit(str[0]))
		x=atoi(str);
	for(int i(0); i!=x; ++i)

       fi>>str2;
       cout<<str2<<endl;
	}
fi.close();
}

Pseuocode:

Open file with fstream object(ofstream/ifstream).
Read in every work(fstream_object >> variable, Note doesn't work on every line)
Then if the variable equals what you are searching for output.

Example:

#include <iostream>
#include <fstream>

using namespace std;

int main(){
    ifstream data;
    data.open("file.txt")
    string var;

   while(data){
       indata >> var;
       if(var == "mouse" || var == "cat" || var == "lion")
           cout << var;
    }

    return 0;
}</fstream></iostream>

And this may have some typos, for i did not check it but this is basically what it should look like.
And next time just google some fstream tutorials for c++.
Good Luck!!!

you can use
char c1[1000];
FILE *fp;
while(!fp.eof())
fgets(fp,c1,1000);
here you will get the whole thing which ever is there in the whole line and the you can make modification that are needed accordingly k and select that which ever is needed

If the file, for example:

1
bird
2
dog
cow
3
camel
cat
mouse
4
rabbit
horse
zebra
lion

1. Read the file using std::ifstream as in solution 3, for example.
2. Write it in std::string
3. Using std::stringstream split string in separate words and calculate the number of words;
4. Write separate words in std::vector<string>
5. Output only needed elements:
int k=2;
for(int i=1;
i<n;>
i=i+k)
{
cout << valVector[i]<<endl<<'\n';
k++;
}

This algorithm works.