nut_bolt.cpp

#include <bits/stdc++.h> 
using namespace std; 
  

void nutboltmatch(char nuts[], char bolts[], int n) 
{ 
    unordered_map<char, int> hash; 
  
    
    for (int i = 0; i < n; i++) 
        hash[nuts[i]] = i; 
  
   
    for (int i = 0; i < n; i++) 
        if (hash.find(bolts[i]) != hash.end()) 
            nuts[i] = bolts[i]; 
  
    cout << "matched nuts and bolts are-" << endl; 
    for (int i = 0; i < n; i++) 
        cout << nuts[i] << " "; 
    cout << endl; 
    for (int i = 0; i < n; i++) 
        cout << bolts[i] << " "; 
} 
  

int main() 
{ 
    char nuts[] = {'@', '#', '$', '%', '^', '&'}; 
    char bolts[] = {'$', '%', '&', '^', '@', '#'}; 
    int n = sizeof(nuts) / sizeof(nuts[0]); 
    nutboltmatch(nuts, bolts, n); 
    return 0; 
}