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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. int r[50];
  10. int c[50];
  11. class Solution{
  12.   public:
  13.   int oddCells(int n, int m, vector<vector<int>>& ind){
  14.     int i;
  15.     int res = 0;
  16.     for(i=(0);i<(n);i++){
  17.       r[i] = 0;
  18.     }
  19.     for(i=(0);i<(m);i++){
  20.       c[i] = 0;
  21.     }
  22.     for(i=(0);i<(ind.size());i++){
  23.       r[ind[i][0]]++;
  24.     }
  25.     for(i=(0);i<(ind.size());i++){
  26.       c[ind[i][1]]++;
  27.     }
  28.     for(i=(0);i<(n);i++){
  29.       int j;
  30.       for(j=(0);j<(m);j++){
  31.         res += (r[i] + c[j]) % 2;
  32.       }
  33.     }
  34.     return res;
  35.   }
  36. }
  37. ;
  38. // cLay varsion 20191108-1
  39.  
  40. // --- original code ---
  41. // #define main dummy_main
  42. // {}
  43. // #undef main
  44. // 
  45. // int r[50], c[50];
  46. // 
  47. // class Solution {
  48. // public:
  49. //   int oddCells(int n, int m, vector<vector<int>>& ind) {
  50. //     int res = 0;
  51. //     rep(i,n) r[i] = 0;
  52. //     rep(i,m) c[i] = 0;
  53. //     rep(i,ind.size()) r[ind[i][0]]++;
  54. //     rep(i,ind.size()) c[ind[i][1]]++;
  55. //     rep(i,n) rep(j,m) res += (r[i] + c[j]) % 2;
  56. //     return res;
  57. //   }
  58. // };
  59.  
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/qbHPnN
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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