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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.   string minRemoveToMakeValid(string s){
  12.     int i;
  13.     int k = 0;
  14.     int N;
  15.     int mark[100000] = {};
  16.     string t;
  17.     string res;
  18.     N = s.size();
  19.     for(i=(0);i<(N);i++){
  20.       if(k == 0 && s[i] == ')'){
  21.         continue;
  22.       }
  23.       if(s[i]=='('){
  24.         k++;
  25.       }
  26.       if(s[i]==')'){
  27.         k--;
  28.       }
  29.       t += s[i];
  30.     }
  31.     N = t.size();
  32.     for(i=(N)-1;i>=(0);i--){
  33.       if(k > 0 && t[i] == '('){
  34.         k--;
  35.         mark[i] = 1;
  36.       }
  37.     }
  38.     for(i=(0);i<(N);i++){
  39.       if(mark[i]==0){
  40.         res += t[i];
  41.       }
  42.     }
  43.     return res;
  44.   }
  45. }
  46. ;
  47. // cLay varsion 20191102-1
  48.  
  49. // --- original code ---
  50. // #define main dummy_main
  51. // {}
  52. // #undef main
  53. // 
  54. // 
  55. // class Solution {
  56. // public:
  57. //   string minRemoveToMakeValid(string s) {
  58. //     int i, k = 0, N;
  59. //     int mark[1d5] = {};
  60. //     string t, res;
  61. // 
  62. //     N = s.size();
  63. //     rep(i,N){
  64. //       if(k == 0 && s[i] == ')') continue;
  65. //       if(s[i]=='(') k++;
  66. //       if(s[i]==')') k--;
  67. //       t += s[i];
  68. //     }
  69. //     N = t.size();
  70. // 
  71. //     rrep(i,N) if(k > 0 && t[i] == '(') k--, mark[i] = 1;
  72. //     rep(i,N) if(mark[i]==0) res += t[i];
  73. //     return res;
  74. //   }
  75. // };
  76.  
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/WpSe1g
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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