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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 numTeams(vector<int>& A){
  12.     int i;
  13.     int N = A.size();
  14.     int c1;
  15.     int c2;
  16.     int res = 0;
  17.     for(i=(0);i<(N);i++){
  18.       int j, k;
  19.       c1 = c2 = 0;
  20.       for(j=(0);j<(i);j++){
  21.         if(A[j] < A[i]){
  22.           c1++;
  23.         }
  24.       }
  25.       for(k=(i+1);k<(N);k++){
  26.         if(A[k] > A[i]){
  27.           c2++;
  28.         }
  29.       }
  30.       res += c1 * c2 + (i-c1) * (N-i-1-c2);
  31.     }
  32.     return res;
  33.   }
  34. }
  35. ;
  36. // cLay varsion 20200325-1
  37.  
  38. // --- original code ---
  39. // #define main dummy_main
  40. // {}
  41. // #undef main
  42. // 
  43. // class Solution {
  44. // public:
  45. //   int numTeams(vector<int>& A) {
  46. //     int N = A.size(), c1, c2, res = 0;
  47. //     rep(i,N){
  48. //       c1 = c2 = 0;
  49. //       rep(j,i) if(A[j] < A[i]) c1++;
  50. //       rep(k,i+1,N) if(A[k] > A[i]) c2++;
  51. //       res += c1 * c2 + (i-c1) * (N-i-1-c2);
  52. //     }
  53. //     return res;
  54. //   }
  55. // };
  56.  
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/ErHOwX
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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