c++ - Can we take input in array (a1,a2) in this way? -

suppose if having 2 integer array a1[2] , a2[2] , want take input

int a1[2],a2[2]; int i; cout<<"enter values in array a1\n"; for(i=0;i<2;i++) {     cin>>a1[i];       // taking input in a1 separatly using loop } cout<<"enter values in array a2\n"; for(i=0;i<2;i++) {     cin>>a2[i];      // taking input in a2 separatly using loop } 

but can minimize using cin statements in code ..

for(j=1;j<3;j++)   // loop taking input in a(j) array , value of j 1 first time input in array a1 {     cout<<"enter values in array a"<<j<<endl;     for(i=0;i<2;i++)     {         cin>>a(j)[i];   // can can take input using loop inside loop     } } 

i don't know should correct question title wants edit question title can do.

do mean following?

#include <iostream> #include <functional>  int main() {     const size_t n = 2;     int a1[n];     int a2[n];     size_t j = 1;      ( auto &r : { std::ref( a1 ), std::ref( a2 ) } )     {         std::cout << "enter values in array a" << j++ << ": ";         ( size_t = 0; < n; i++ )         {             std::cin >> r.get()[i];         }     }              ( auto &r : { std::ref( a1 ), std::ref( a2 ) } )     {         ( size_t = 0; < n; i++ ) std::cout << r.get()[i] << ' ';         std::cout << std::endl;     }         }     

if enter

1 2 3 4 

then output like

enter values in array a1: 1 2 enter values in array a2: 3 4 1 2  3 4  

using approach can use more 2 arrays. example

    const size_t n = 2;     int a1[n];     int a2[n];     int a3[n];     int a4[n];     size_t j = 1;      ( auto &r : { std::ref( a1 ), std::ref( a2 ), std::ref( a3 ), std::ref( a4 ) } )     //...