View Compilation Error

0_0_22720572_12708.cpp: In function 'int main()':
0_0_22720572_12708.cpp:41:4: error: 'g' was not declared in this scope
 if(g)
    ^
0_0_22720572_12708.cpp:42:26: error: 'g' was not declared in this scope
             printf("\n");g++;}
                          ^