Erors

e36db86e-c920-436d-9c9f-28542887e568
e36db86e-c920-436d-9c9f-28542887e568(14) : warning C4996: 'getch': The POSIX name for this item is deprecated. Instead, use the ISO C++ conformant name: _getch. See online help for details.
        S:\checker\compile\vc10\include\conio.h(128) : see declaration of 'getch'
t:\temp\e36db86e-c920-436d-9c9f-28542887e568(12) : warning C4700: uninitialized local variable 'buf' used
e36db86e-c920-436d-9c9f-28542887e568.obj : error LNK2019: unresolved external symbol _getch referenced in function _main
e36db86e-c920-436d-9c9f-28542887e568.exe : fatal error LNK1120: 1 unresolved externals

Working Code


#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int j=0;
    int k=0;
    int buf;
    for(int i=0; buf!=13; i++)
    {
        buf=getch();
        if( buf=='a' || buf=='d' || buf=='g' || buf=='j' || buf=='m' || buf=='p' || buf=='s' || buf=='v' ||  buf=='y' || buf=='.' || buf==32)
            j++;
        if( buf=='b' || buf=='e' || buf=='h' || buf=='k' || buf=='n' || buf=='q' || buf=='t' || buf=='w' ||  buf=='z' || buf==',')
            j=j+2;
        if( buf=='c' || buf=='f' || buf=='i' || buf=='l' || buf=='o' || buf=='r' || buf=='u' || buf=='x' || buf=='!')
            j=j+3;
    }
    cout<<j<<endl;

    return 0;
}

Why eror?

We have no conio.h
Use getchar() instead of getch()