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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[100];
  10. int c[100];
  11. class Solution{
  12.   public:
  13.   int numSpecial(vector<vector<int>>& mat){
  14.     int i;
  15.     int x = mat.size();
  16.     int y = mat[0].size();
  17.     int res = 0;
  18.     for(i=(0);i<(x);i++){
  19.       r[i] = 0;
  20.     }
  21.     for(i=(0);i<(y);i++){
  22.       c[i] = 0;
  23.     }
  24.     for(i=(0);i<(x);i++){
  25.       int j;
  26.       for(j=(0);j<(y);j++){
  27.         r[i] += mat[i][j];
  28.       }
  29.     }
  30.     for(i=(0);i<(x);i++){
  31.       int j;
  32.       for(j=(0);j<(y);j++){
  33.         c[j] += mat[i][j];
  34.       }
  35.     }
  36.     for(i=(0);i<(x);i++){
  37.       int j;
  38.       for(j=(0);j<(y);j++){
  39.         if(mat[i][j] && r[i]==c[j] && c[j]==1){
  40.           res++;
  41.         }
  42.       }
  43.     }
  44.     return res;
  45.   }
  46. }
  47. ;
  48. // cLay varsion 20200913-1
  49.  
  50. // --- original code ---
  51. // #define main dummy_main
  52. // {}
  53. // #undef main
  54. // 
  55. // int r[100], c[100];
  56. // 
  57. // class Solution {
  58. // public:
  59. //   int numSpecial(vector<vector<int>>& mat) {
  60. //     int x = mat.size(), y = mat[0].size(), res = 0;
  61. //     rep(i,x) r[i] = 0;
  62. //     rep(i,y) c[i] = 0;
  63. //     rep(i,x) rep(j,y) r[i] += mat[i][j];
  64. //     rep(i,x) rep(j,y) c[j] += mat[i][j];
  65. //     rep(i,x) rep(j,y) if(mat[i][j] && r[i]==c[j]==1) res++;
  66. //     return res;
  67. //   }
  68. // };
  69.  
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/zVwrpf
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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