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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int c, n, last_bin;
  5. bool was_it = 0;
  6.  
  7. int main() {
  8.     cin >> c; // wczytujemy liczbe przypadkow
  9.     for (int cases = 0; cases < c; cases++) {
  10.         cin >> n;
  11.         string s;
  12.         int out = 0;
  13.         cin >> s;
  14.         for (int i = 0; i < n; i++) {
  15.             if (s[i] == '1') { // jezeli smietnik jest pod domem
  16.                 last_bin == i; //ustawiamy last bin na index ostatniego smietnika
  17.                 was_it = 1;
  18.                 // out += 0
  19.             }
  20.             else if (s[i] == '0' && was_it == 1 && i - last_bin == 1) { // jezeli smietnik jest dom obok
  21.                 out += 1;
  22.             }
  23.             else if (s[i] == '0' && was_it != 1) { // jezeli nie bylo jeszcze zadnego smietnika
  24.                 int x = 0;
  25.                 for (int j = i-1; j < n; j++) {
  26.                     x++;
  27.                     if (s[j] == '1') {
  28.                         out += x;
  29.                         break;
  30.                     }
  31.                 }
  32.             }
  33.             else if (s[i] == '0') { // jezeli byl juz jakis smietnik ale niekonieczne obok
  34.                 int x = 0;
  35.                 for (int j = i-1; j < n-last_bin-1; j++) {
  36.                     x++;
  37.                     if (s[j] == '1') {
  38.                         out += x;
  39.                         break;
  40.                     }
  41.                 }
  42.             }
  43.         }
  44.         cout << out << '\n';
  45.  
  46.     }
  47.  
  48.     return 0;
  49. }
Success #stdin #stdout 0.01s 5592KB
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stdin
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https://ideone.com/yvWvqt
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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