View Compilation Error

0_0_35705446_12701.cpp: In function 'int chuli(char*)':
0_0_35705446_12701.cpp:14:10: error: 'i' was not declared in this scope
      for(i=len-1;i>=t&&s[i]=='0'||s[i]=='.';i--);
          ^
0_0_35705446_12701.cpp:15:8: error: 'i' was not declared in this scope
      s[i+1]=0;
        ^