c++ string/array

[michael25]

Im trying to write a program that would see how many of the strings entered in an array end with the the letters ab

any sugestions on where to start

[mutexe]

work out the size of the string then use
http://www.cplusplus.com/reference/string/string/substr/

then you can compare that substring against "ab".

[michael25]

so i got it to read and output the end of the string. However i wasnt it to count how many words in the string end with ab and then output that number. I know i have to use a if statement but not sure where to start.

#include <iostream>
using namespace std;


int main()
{
	
    string s;
    
    cout << " enter string ";
    getline(cin, s);
    
    string end;
	end = s.substr(s.length()-2, 2);
	cout << end;
    cout << endl;
    
    return 0;
}  

[cronopio]

If what you want is to count the number of words ending in ab, use this code..

#include <iostream>
using namespace std;

int main()
{	
    string s;
    int countString;
    int amount = 0;
    
    cin >> countString;
    while(countString--)
    {
       cin>> s;
       
       if (s.length() >= 2)
       {
          if (s[ s.length()-1]=='b' && s[s.length()-2]=='a')
            amount ++;
       }                        
    }
    
    cout<<amount<<endl;
    
    system("pause");
    return 0;
}  

cronos

[michael25]

its not working for me for some reason. it keeps returning the amount as zero.

[cronopio]

what the input you are using?

[michael25]

i just enter a string. My goal is to enter a string and count how many words in that string end with ab. would i have to use a getline function to read the string?

[cronopio]

view function
http://www.cplusplus.com/reference/cstring/strtok/

[michael25]

still dont understand it. but thanks for you help.