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  1. #pragma GCC optimize ("Ofast")
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. #define main dummy_main
  5. int main(){
  6.   return 0;
  7. }
  8. #undef main
  9. class Solution{
  10.   public:
  11.   int maximum69Number (int num){
  12.     int i;
  13.     char buf[10];
  14.     sprintf(buf, "%d", num);
  15.     for(i=0;;i++){
  16.       if(buf[i]=='\0'){
  17.         break;
  18.       }
  19.       if(buf[i]=='6'){
  20.         buf[i] = '9';
  21.         break;
  22.       }
  23.     }
  24.     return atoi(buf);
  25.   }
  26. }
  27. ;
  28. // cLay varsion 20200119-1
  29.  
  30. // --- original code ---
  31. // #define main dummy_main
  32. // {}
  33. // #undef main
  34. // 
  35. // class Solution {
  36. // public:
  37. //   int maximum69Number (int num) {
  38. //     int i;
  39. //     char buf[10];
  40. //     sprintf(buf, "%d", num);
  41. //     for(i=0;;i++){
  42. //       if(buf[i]=='\0') break;
  43. //       if(buf[i]=='6') buf[i] = '9', break;
  44. //     }
  45. //     return atoi(buf);
  46. //   }
  47. // };
  48.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/8/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
stdout
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Standard output is empty
https://ideone.com/RGOfMJ
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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