View Compilation Error

0_0_36547735_2670.cpp: In function 'int main()':
0_0_36547735_2670.cpp:21:18: error: 'getschar' was not declared in this scope
         getschar();
                  ^
0_0_36547735_2670.cpp:24:17: error: 'phonr' was not declared in this scope
             pus(phonr[i]);
                 ^
0_0_36547735_2670.cpp:24:25: error: 'pus' was not declared in this scope
             pus(phonr[i]);
                         ^