View Compilation Error

0_0_15149184_28583.cpp: In function 'int chack(char*)':
0_0_15149184_28583.cpp:13:9: error: 'i' was not declared in this scope
  return i;
         ^
0_0_15149184_28583.cpp: In function 'int ChackZero(char*, int)':
0_0_15149184_28583.cpp:108:6: error: 'i' was not declared in this scope
   if(i == strlen(a))
      ^
0_0_15149184_28583.cpp:126:6: error: 'i' was not declared in this scope
   if(i == -1)
      ^
0_0_15149184_28583.cpp: In function 'void pingjie(char*, char*)':
0_0_15149184_28583.cpp:148:6: error: 'k' was not declared in this scope
  for(k=t2+1; k<t3; k++)
      ^
0_0_15149184_28583.cpp:158:5: error: 'i' was not declared in this scope
   c[i++]='.';
     ^
0_0_15149184_28583.cpp:162:5: error: 'i' was not declared in this scope
   c[i+j]=b[j];
     ^