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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. // why am I so weak
  5.  
  6. int n;
  7. char s[5055];
  8.  
  9. int main() {
  10.     scanf("%d", &n);
  11.  
  12.     int a = 0, b = 0, c = 0;
  13.  
  14.     {
  15.         char buf[5055];
  16.         scanf("%s", buf);
  17.  
  18.         for (int i = 0; i < n; i++) {
  19.             if (buf[i] == 'a') a++;
  20.             if (buf[i] == 'b') b++;
  21.             if (buf[i] == 'c') c++;
  22.         }
  23.     }
  24.  
  25.     int a_left = 0, b_left = 0, c_left = 0;
  26.  
  27.     scanf("%s", s);
  28.  
  29.     for (int i = 0; i < n; i++) {
  30.         if (s[i] == 'a') a_left++;
  31.         if (s[i] == 'b') b_left++;
  32.         if (s[i] == 'c') c_left++;
  33.     }
  34.  
  35.     for (int i = 0; i < n; i++) {
  36.         if (s[i] == 'a') {
  37.             // use b or c
  38.  
  39.             a_left--;
  40.  
  41.             if (b > 0 && a_left <= c + b - 1 && c_left <= a + b - 1) {
  42.                 b--;
  43.                 printf("b");
  44.             } else {
  45.                 c--;
  46.                 printf("c");
  47.             }
  48.         } else if (s[i] == 'b') {
  49.             // a or c
  50.  
  51.             b_left--;
  52.  
  53.             if (a > 0 && b_left <= a + c - 1 && c_left <= a + b - 1) {
  54.                 a--;
  55.                 printf("a");
  56.             } else {
  57.                 c--;
  58.                 printf("c");
  59.             }
  60.         } else {
  61.             // a or b
  62.  
  63.             c_left--;
  64.  
  65.             if (a > 0 && b_left <= a + c - 1 && c_left <= a + b - 1) {
  66.                 a--;
  67.                 printf("a");
  68.             } else {
  69.                 b--;
  70.                 printf("b");
  71.             }
  72.         }
  73.     }
  74.  
  75.     return 0;
  76. }
Success #stdin #stdout 0s 16064KB
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https://ideone.com/qjnUOH
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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