Algorithm
Problem Name:
In this HackerRank Functions in C++ programming problem solution,
C++ provides a nice alternative data type to manipulate strings, and the data type is conveniently called string. Some of its widely used features are the following:
-
Declaration:
string a = "abc"; -
Size:
int len = a.size(); -
Concatenate two strings:
string a = "abc"; string b = "def"; string c = a + b; // c = "abcdef". -
Accessing i**th element:
string s = "abc"; char c0 = s[0]; // c0 = 'a' char c1 = s[1]; // c1 = 'b' char c2 = s[2]; // c2 = 'c' s[0] = 'z'; // s = "zbc"P.S.: We will use cin/cout to read/write a string.
Input Format
You are given two strings, a and b , separated by a new line. Each string will consist of lower case Latin characters ('a'-'z').
In the first line print two space-separated integers, representing the length of a and b espectively.Output Format
In the second line print the string produced by concatenating a and (a+b)
In the third line print two strings separated by a space a' and b'. a' and b' are the same as a and b, respectively, except that their first characters are swapped.Sample Input
abcd efSample Output
4 2 abcdef ebcd af
Code Examples
#1 Code Example with C++ Programming
Code -
C++ Programming
#include <iostream>
#include <string>
#include <lalgorithm>
using namespace std;
int main(void)
{
string a, b;
cin >> a;
cin >> b;
cout << a.length() << " " << b.length() << endl;
cout << a + b << endl;
swap(a[0], b[0]);
cout << a << " " << b << endl;
return 0;
}
Input
abcd
ef
Output
4 2
abcdef
ebcd af