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  1. #pragma GCC optimize ("Ofast")
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4. template<class S, class T> inline S min_L(S a,T b){
  5.   return a<=b?a:b;
  6. }
  7. #define main dummy_main
  8. int main(){
  9.   return 0;
  10. }
  11. #undef main
  12. class Solution{
  13.   public:
  14.   vector<int> arraysIntersection(vector<int>& A, vector<int>& B, vector<int>& C){
  15.     int a = 0;
  16.     int b = 0;
  17.     int c = 0;
  18.     int m;
  19.     vector<int> res;
  20.     while(a < A.size() && b < B.size() && c < C.size()){
  21.       if(A[a] == B[b]  &&  B[b] == C[c]){
  22.         res.push_back(A[a]);
  23.         a++;
  24.         b++;
  25.         c++;
  26.       }
  27.       else{
  28.         m =min_L(min_L(A[a], B[b]), C[c]);
  29.         if(m==A[a]){
  30.           a++;
  31.         }
  32.         if(m==B[b]){
  33.           b++;
  34.         }
  35.         if(m==C[c]){
  36.           c++;
  37.         }
  38.       }
  39.     }
  40.     return res;
  41.   }
  42. }
  43. ;
  44. // cLay varsion 20191006-1
  45.  
  46. // --- original code ---
  47. // #define main dummy_main
  48. // {}
  49. // #undef main
  50. // 
  51. // class Solution {
  52. // public:
  53. //   vector<int> arraysIntersection(vector<int>& A, vector<int>& B, vector<int>& C) {
  54. //     int a = 0, b = 0, c = 0, m;
  55. //     vector<int> res;
  56. //     while(a < A.size() && b < B.size() && c < C.size()){
  57. //       if(A[a] == B[b] == C[c]){
  58. //         res.push_back(A[a]);
  59. //         a++; b++; c++;
  60. //       } else {
  61. //         m = min(A[a], B[b], C[c]);
  62. //         if(m==A[a]) a++;
  63. //         if(m==B[b]) b++;
  64. //         if(m==C[c]) c++;
  65. //       }
  66. //     }
  67. //     return res;
  68. //   }
  69. // };
  70.  
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/uRzQnH
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

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