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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 ProductOfNumbers{
  10.   public:
  11.   vector<int> v;
  12.   ProductOfNumbers(){
  13.     v.push_back(1);
  14.   }
  15.   void add(int num){
  16.     if(num==0){
  17.       v.clear();
  18.       v.push_back(1);
  19.     }
  20.     else{
  21.       v.push_back(num * v.back());
  22.     }
  23.   }
  24.   int getProduct(int k){
  25.     if(v.size() <= k){
  26.       return 0;
  27.     }
  28.     return v[v.size()-1] / v[v.size()-1-k];
  29.   }
  30. }
  31. ;
  32. // cLay varsion 20200214-1
  33.  
  34. // --- original code ---
  35. // #define main dummy_main
  36. // {}
  37. // #undef main
  38. // 
  39. // class ProductOfNumbers {
  40. // public:
  41. //   vector<int> v;
  42. //   ProductOfNumbers() {
  43. //     v.push_back(1);
  44. //   }
  45. // 
  46. //   void add(int num) {
  47. //     if(num==0){
  48. //       v.clear();
  49. //       v.push_back(1);
  50. //     } else {
  51. //       v.push_back(num * v.back());
  52. //     }
  53. //   }
  54. // 
  55. //   int getProduct(int k) {
  56. //     if(v.size() <= k) return 0;
  57. //     return v[v.size()-1] / v[v.size()-1-k];
  58. //   }
  59. // };
  60.  
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/C8YlPE
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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