Strings Cpp - Hackerrank Solution

 

Strings in C++

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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();

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Concatenate two strings:

string a = "abc";
string b = "def";
string c = a + b; // c = "abcdef".

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Accessing ith 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"

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Solution:

#include <iostream> #include <string> using namespace std; int main() {     string str,str1; int a,b; cin>>str>>str1; a=str.size(); b=str1.size(); cout<<a<<" "<<b<<endl; cout<<str+str1<<endl; char c=str[0]; str[0]=str1[0]; str1[0]=c; cout<<str<<" "<<str1; return 0; }

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