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  1. #include <cstdio>
  2. #include <algorithm>
  3. #include <vector>
  4. #include <iostream>
  5. #include <cmath>
  6. #include <map>
  7. #include <set>
  8. #include <cassert>
  9. #include <queue>
  10. using namespace std;
  11.  
  12. #define rank XBOCT4
  13. #define right solo322
  14. #define y1 dread1
  15. #define left hohohaha
  16.  
  17. const double PI = acos(-1.0);
  18. const int MD = 1000000000 + 7;
  19.  
  20. long long s[100333][26];
  21. long long size[100333];
  22. string st;
  23. int n = 0;
  24.  
  25. long long count(long long p, int c) {
  26.     if (p == 0 || n == 0) {
  27.         return 0;
  28.     }
  29.     int l = 0, r = n;
  30.     while (l + 1 < r) {
  31.         int m = (l + r) / 2;
  32.         if (size[m] >= p) {
  33.             r = m;
  34.         } else {
  35.             l = m;
  36.         }
  37.     }
  38.    // cerr << s[r][c] << endl;
  39.     if (size[r] == p) {
  40.         return s[r][c];
  41.     }
  42.     return (s[r - 1][c] * (p / size[r - 1])) + count(p % size[r - 1], c);
  43. }
  44.  
  45. int main() {
  46.     ios_base::sync_with_stdio(false);
  47.     cin >> st;
  48.     for (int i = 1; i <= st.size(); i++) {
  49.         if (st[i - 1] >= '0' && st[i - 1] <= '9') {
  50.             size[i] = size[i - 1] * (st[i - 1] - '0');
  51.             for (int j = 0; j < 26; j++) {
  52.                 s[i][j] = s[i - 1][j] * (st[i - 1] - '0');
  53.             }
  54.         } else {
  55.             size[i] = size[i - 1] + 1;
  56.             for (int j = 0; j < 26; j++) {
  57.                 s[i][j] = s[i - 1][j];
  58.             }
  59.             s[i][st[i - 1] - 'a']++;
  60.         }
  61.         if (size[i] < size[i - 1]) {
  62.             break;
  63.         }
  64.         n = i;
  65.     }
  66.     int q;
  67.    // scanf("%d\n", &q);
  68.     cin >> q;
  69.     for (int i = 0; i < q; i++) {
  70.         char c;
  71.         long long l, r;
  72.         //scanf("%c %lld %lld", &c, &l, &r);
  73.         cin >> c >> l >> r;
  74.       //  cerr << c << " " << l << " " << r << endl;
  75.         c -= 'a';
  76.         cout << count(r, c) - count(l - 1, c) << "\n";
  77.     }
  78.     return 0;
  79. }
Runtime error #stdin #stdout 0.01s 24400KB
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https://ideone.com/CPglkb
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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