View Compilation Error

0_0_34145994_19934.cpp:30:2: error: stray '\243' in program
  scanf("%s",&s)；
  ^
0_0_34145994_19934.cpp:30:2: error: stray '\273' in program
0_0_34145994_19934.cpp: In function 'int main()':
0_0_34145994_19934.cpp:32:4: error: expected ';' before 'int'
    int len=strlen(s);
    ^
0_0_34145994_19934.cpp:37:17: error: 'len' was not declared in this scope
  for(int i=2;i<=len;i++)
                 ^
0_0_34145994_19934.cpp:49:21: error: 'len' was not declared in this scope
      ans=min(ans,dp[len][i]);
                     ^