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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 maxOperations(vector<int>& A, int K){
  12.     int res = 0;
  13.     int N = A.size();
  14.     int x = 0;
  15.     int y = N-1;
  16.     sort(A.begin(), A.end());
  17.     while(x < y){
  18.       if(A[x] + A[y] == K){
  19.         res++;
  20.         x++;
  21.         y--;
  22.         continue;
  23.       }
  24.       if(A[x] + A[y] < K){
  25.         x++;
  26.       }
  27.       else{
  28.         y--;
  29.       }
  30.     }
  31.     return res;
  32.   }
  33. }
  34. ;
  35. // cLay version 20201206-1
  36.  
  37. // --- original code ---
  38. // #define main dummy_main
  39. // {}
  40. // #undef main
  41. // 
  42. // class Solution {
  43. // public:
  44. //   int maxOperations(vector<int>& A, int K) {
  45. //     int res = 0, N = A.size(), x = 0, y = N-1;
  46. //     sort(A.begin(), A.end());
  47. //     while(x < y){
  48. //       if(A[x] + A[y] == K) res++, x++, y--, continue;
  49. //       if[A[x] + A[y] < K, x++, y--];
  50. //     }
  51. //     return res;
  52. //   }
  53. // };
  54.  
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/3ks8l8
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
secret

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