Get the string length : char array string « String « C++

Get the string length

  
#include <iostream>  
#include <string.h>  
using namespace std;
main(void)  
{  
  int i;  
  i = 10;  
     
  int j = 100;
     
  cout << i*j << "\n";  
     
  cout << "Enter a string: ";  
  char str[80];  
  cin >> str;  
     
  // display the string in reverse order  
  int k;  
  k = strlen(str);  
  k--;  
  while(k>=0) {  
    cout << str[k];  
    k--;  
  }  
     
  return 0;  
}

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