View Compilation Error

0_0_22720714_17702.cpp: In function 'int main()':
0_0_22720714_17702.cpp:42:4: error: 'g' was not declared in this scope
 if(g)
    ^
0_0_22720714_17702.cpp:43:26: error: 'g' was not declared in this scope
             printf("\n");g++;}
                          ^